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MRI ACRONYMS
A comparison of the MRI specific acronyms for magnetic resonance imaging sequences, e.g. TSE, FSE, FLAIR, STIR, FLASH, and FISP, used by the manufacturers GE, PhilipsMRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi and3D ISOTROPIC MRI
Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio.The acquisition of isotropic voxels or thin slices with high spatial resolution allows to create multiplanar reconstructions in all planes; a compensation for the usually longer scan time. MRI - SINEREM - MR-TIP: DATABASE Sinerem ® is the brand name (same as Combidex®) for an ultrasmall superparamagnetic iron oxide to detect metastatic disease in lymph nodes.Metastatic nodes show less uptake of this MRI contrast agent, which results in less signal decrease and allows the differentiation of normal lymph nodes from normal-sized, metastatic nodes. Lymph node imaging with Sinerem ® is performed 24 to 36 hours MRI - KEYHOLE - MR-TIP: DATABASE Keyhole in MRI Technology +Intera 0.5T +Intera 1.0T +Intera 1.5T +Intera 3.0T. Keyhole imaging is used for dynamic imaging with contrast medium.The advantage is that the keyhole technique increases temporal resolution without a loss of spatial resolution by limited data acquisition. Keyhole Fourier imaging updates the low spatial frequencies of the original full, high-resolution data set. MRI - SHOT - MR-TIP: DATABASE In multi shot technique (also called mosaic imaging), a group of samples, which are contiguous in k space are acquired in the same sequence repetition. The phase encoding steps or profiles are split into ' shot s' (sub-acquisitions). The shot interval is the timebetween the
MRI - OFF RESONANCE ARTIFACTS - MR-TIP: DATABASE From GE Healthcare; The Signa HDx MRI system is GE's leading edge whole body magnetic resonance scanner designed to support high resolution, high signal to noise ratio, and short scan times. Signa HDx 3.0T off ers new technologies like ultra-fast image reconstruction through the new XVRE recon engine, advancements in parallel imaging algorithms and the broadest range of premium applications. MRI - T2 MEDIC - MR-TIP: DATABASE Several thousand entries of medical information with MRI related topics for radiology education, e.g., NMR, spectroscopy, research, claustrophobia, diagnostic, cardiac, medical equipment, MRI machines, medical news, open MRI, MRI image, MRI picture, MRI test, medical diagnostic, MRI terms, MRI definitions, MRI scanner, MRI physics, MRI procedures, MRI technology, MRI history, physical MRI - MOLECULAR TUMBLING RATE - MR-TIP: DATABASE Reciprocals of the relaxation times, T1 and T2 (R1 = 1/T1 and R2 = 1/T2).There is often a linear relation between the concentration of MR contrast agents and the resulting change in relaxation rate.The rate of relaxation is influenced by molecules with protons that are tumbling.A slower tumble rate will result in faster relaxation rate (shorter relaxation time). MRI - RING ARTIFACT - MR-TIP: DATABASE A moiré pattern is an interference pattern created for example when two grids are overlaid at an angle, or when they have slightly different mesh sizes. The human visual system creates an imaginary pattern of roughly horizontal dark and light bands, the moiré pattern that appears to be superimposed on the lines. In MRI, the appearance of moire f ring es can be caused by a variety of reasonsMRI ACRONYMS
A comparison of the MRI specific acronyms for magnetic resonance imaging sequences, e.g. TSE, FSE, FLAIR, STIR, FLASH, and FISP, used by the manufacturers GE, PhilipsMRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi and3D ISOTROPIC MRI
Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio.The acquisition of isotropic voxels or thin slices with high spatial resolution allows to create multiplanar reconstructions in all planes; a compensation for the usually longer scan time. MRI - SINEREM - MR-TIP: DATABASE Sinerem ® is the brand name (same as Combidex®) for an ultrasmall superparamagnetic iron oxide to detect metastatic disease in lymph nodes.Metastatic nodes show less uptake of this MRI contrast agent, which results in less signal decrease and allows the differentiation of normal lymph nodes from normal-sized, metastatic nodes. Lymph node imaging with Sinerem ® is performed 24 to 36 hours MRI - KEYHOLE - MR-TIP: DATABASE Keyhole in MRI Technology +Intera 0.5T +Intera 1.0T +Intera 1.5T +Intera 3.0T. Keyhole imaging is used for dynamic imaging with contrast medium.The advantage is that the keyhole technique increases temporal resolution without a loss of spatial resolution by limited data acquisition. Keyhole Fourier imaging updates the low spatial frequencies of the original full, high-resolution data set. MRI - SHOT - MR-TIP: DATABASE In multi shot technique (also called mosaic imaging), a group of samples, which are contiguous in k space are acquired in the same sequence repetition. The phase encoding steps or profiles are split into ' shot s' (sub-acquisitions). The shot interval is the timebetween the
MRI - OFF RESONANCE ARTIFACTS - MR-TIP: DATABASE From GE Healthcare; The Signa HDx MRI system is GE's leading edge whole body magnetic resonance scanner designed to support high resolution, high signal to noise ratio, and short scan times. Signa HDx 3.0T off ers new technologies like ultra-fast image reconstruction through the new XVRE recon engine, advancements in parallel imaging algorithms and the broadest range of premium applications. MRI - T2 MEDIC - MR-TIP: DATABASE Several thousand entries of medical information with MRI related topics for radiology education, e.g., NMR, spectroscopy, research, claustrophobia, diagnostic, cardiac, medical equipment, MRI machines, medical news, open MRI, MRI image, MRI picture, MRI test, medical diagnostic, MRI terms, MRI definitions, MRI scanner, MRI physics, MRI procedures, MRI technology, MRI history, physical MRI - MOLECULAR TUMBLING RATE - MR-TIP: DATABASE Reciprocals of the relaxation times, T1 and T2 (R1 = 1/T1 and R2 = 1/T2).There is often a linear relation between the concentration of MR contrast agents and the resulting change in relaxation rate.The rate of relaxation is influenced by molecules with protons that are tumbling.A slower tumble rate will result in faster relaxation rate (shorter relaxation time). MRI - RING ARTIFACT - MR-TIP: DATABASE A moiré pattern is an interference pattern created for example when two grids are overlaid at an angle, or when they have slightly different mesh sizes. The human visual system creates an imaginary pattern of roughly horizontal dark and light bands, the moiré pattern that appears to be superimposed on the lines. In MRI, the appearance of moire f ring es can be caused by a variety of reasonsMRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi and MRI MACHINE SPECIFICATIONS According to GE, the installation has been simplified to last only 7 days and has a 30 percent smaller footprint than a typical 1.5T system. The 1.5T Signa™ HDe MRI system is substantially equivalent to the currently marketed GE 1.5T machine s. The data acquisition system supports 1, 4, 8 independent receive channels and multipleindependent
MRI - FRFSE SEQUENCE - MR-TIP: DATABASE Several thousand entries of medical information with MRI related topics for radiology education, e.g., NMR, spectroscopy, research, claustrophobia, diagnostic, cardiac, medical equipment, MRI machines, medical news, open MRI, MRI image, MRI picture, MRI test, medical diagnostic, MRI terms, MRI definitions, MRI scanner, MRI physics, MRI procedures, MRI technology, MRI history, physical MRI - SHIMMING - MR-TIP: DATABASE Shimming by adjusting the position of suitable pieces of ferromagnetic metal within or around the main magnet of a MRI system. Typically, the iron is in the form of small plates which are held in removable trays. The magnetic field is plotted, the position and quality of the iron required is then calculated and the appropriate 'shims' put in place. . Several repetitions of this process will MRI - ARRAY PROCESSOR - MR-TIP: DATABASE MRI computer can be divided into central processing unit (CPU), consisting of instruction, interpretation and arithmetic unit plus fast access memory, and peripheral devices such as bulk data storage and input and output devices (including, via the interface, the spectrometer).The computer controls the RF pulses and gradients necessary to acquire data, and process the data to produce spectra MRI - GRADIENT SWITCHING - MR-TIP: DATABASE Rapid echo planar imaging and high-performance MRI gradient systems create fast-switching magnetic fields that can stimulate muscle and nerve tissues produced by either changing the electrical resistance or the potential of the excitation.There are apparently no effects on the conduction of impulses in the nerve fiber up to field strength of 0.1 T. A preliminary study has indicated MRI - CRYOGEN - MR-TIP: DATABASE A cooling agent, typically liquid helium or liquid nitrogen used to reduce the temperature of the magnet windings in a superconducting magnet.All cryogen ic liquids are gases at normal temperatures and pressures. Different cryogen s become liquids under different conditions of temperature and pressure, but all have two properties in common: they are extremely cold, and small amounts of liquid MRI FORUM - QUESTION P18 - MR-TIP.COM The medical forum and radiology forum for the information exchange of views about magnetic resonance experience. Tips, solutions, discussions and perspective on MRI examinations, MRI equipment, MRI trends and opinions for radiologists, technologists, MRI technicians, radiographer, medical school students, administrators, and industryprofessionals.
MRI NEWS: MEDIC P13
Daily new links to the latest MRI and medical news from science and research, business and trading, with business report, quarterly earnings, trading updates, MRI safety data, MRI scanner sales, MRI contrast agent research, functional imaging, etc.. MRI - BIPOLAR GRADIENT PULSE - MR-TIP: DATABASE Bipolar gradients are two gradients with the same magnitude but opposite gradient direction. A bipolar gradient pulse is produced if one of the bipolar gradients is switched e.g., in negative direction and then switched in the opposite direction for an equivalent amount of time. Bipolar gradients are used e.g. in phase contrast and diffusion weighted sequences. WELCOME TO MR-TIP.COM, Magnetic Resonance - Technology Information Portal (www.mr-tip.com) is a free web portal for magnetic resonance imaging. Radiologists, technicians, technologists, administrators, and industry professionals can find information about magnetic resonance basics, technology, artifacts, contrast agents, coils, sequences, links, events, abbreviations, greeks, symbols, units and measurements, newsMRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi and MRI - CRYOGEN - MR-TIP: DATABASE A cooling agent, typically liquid helium or liquid nitrogen used to reduce the temperature of the magnet windings in a superconducting magnet.All cryogen ic liquids are gases at normal temperatures and pressures. Different cryogen s become liquids under different conditions of temperature and pressure, but all have two properties in common: they are extremely cold, and small amounts of liquid MRI - SINEREM - MR-TIP: DATABASE Sinerem ® is the brand name (same as Combidex®) for an ultrasmall superparamagnetic iron oxide to detect metastatic disease in lymph nodes.Metastatic nodes show less uptake of this MRI contrast agent, which results in less signal decrease and allows the differentiation of normal lymph nodes from normal-sized, metastatic nodes. Lymph node imaging with Sinerem ® is performed 24 to 36 hours MRI - T2 MEDIC - MR-TIP: DATABASE Several thousand entries of medical information with MRI related topics for radiology education, e.g., NMR, spectroscopy, research, claustrophobia, diagnostic, cardiac, medical equipment, MRI machines, medical news, open MRI, MRI image, MRI picture, MRI test, medical diagnostic, MRI terms, MRI definitions, MRI scanner, MRI physics, MRI procedures, MRI technology, MRI history, physical MRI - MOLECULAR TUMBLING RATE - MR-TIP: DATABASE Reciprocals of the relaxation times, T1 and T2 (R1 = 1/T1 and R2 = 1/T2).There is often a linear relation between the concentration of MR contrast agents and the resulting change in relaxation rate.The rate of relaxation is influenced by molecules with protons that are tumbling.A slower tumble rate will result in faster relaxation rate (shorter relaxation time). MRI - 5 GAUSS LINE - MR-TIP: DATABASE The principal contraindications of the MRI procedure are mostly related to the presence of metallic implants in a patient. The risks of MRI scans increase with the used field strength.In general, implants are becoming increasingly MR safe and an individual evaluation is carried out for each case. MRI Safety Guidance Some patients should not be examined in MRI machines, or come closer thanthe
MRI - CHORUS 1.5T™ - MR-TIP: DATABASE CHORUS 1.5T ™. From ISOL Technology. 'Next generation MRI system 1.5T CHORUS developed by ISOL Technology is optimized for both clinical diagnostic imaging and for research development. CHORUS offers the complete range of feature oriented advanced imaging techniques- for both clinical routine and research. The compact shortbore magnet, the
MRI - POWER CONSUMPTION IN KW - MR-TIP: DATABASE The power consumption is around 1.3 kW and the needed m in imum floor space is an area of 16 sq m. At RSNA 2006 Hologic In c. in troduced a new dedicated extremity MRI scanner, the Opera. Manufactured by Esaote is the Opera a redesign of Esaote's 0.2 Tesla E-Scan XQ platform, which now enables complete imag in g of all extremities, in clud in g MRI - MAGNETOHYDRODYNAMIC EFFECT - MR-TIP: DATABASE Magnetohydrodynamic Effect. This effect is an additional electrical charge generated by ions in blood (loaded particles) moving perpendicular to the magnetic field . At 1.5 T, no significant changes are expected; at 6.0 T a 10% blood pressure change is expected. A blood pressure increase is predicted theoretically for a field of 10T.
WELCOME TO MR-TIP.COM, Magnetic Resonance - Technology Information Portal (www.mr-tip.com) is a free web portal for magnetic resonance imaging. Radiologists, technicians, technologists, administrators, and industry professionals can find information about magnetic resonance basics, technology, artifacts, contrast agents, coils, sequences, links, events, abbreviations, greeks, symbols, units and measurements, newsMRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi and MRI - CRYOGEN - MR-TIP: DATABASE A cooling agent, typically liquid helium or liquid nitrogen used to reduce the temperature of the magnet windings in a superconducting magnet.All cryogen ic liquids are gases at normal temperatures and pressures. Different cryogen s become liquids under different conditions of temperature and pressure, but all have two properties in common: they are extremely cold, and small amounts of liquid MRI - SINEREM - MR-TIP: DATABASE Sinerem ® is the brand name (same as Combidex®) for an ultrasmall superparamagnetic iron oxide to detect metastatic disease in lymph nodes.Metastatic nodes show less uptake of this MRI contrast agent, which results in less signal decrease and allows the differentiation of normal lymph nodes from normal-sized, metastatic nodes. Lymph node imaging with Sinerem ® is performed 24 to 36 hours MRI - T2 MEDIC - MR-TIP: DATABASE Several thousand entries of medical information with MRI related topics for radiology education, e.g., NMR, spectroscopy, research, claustrophobia, diagnostic, cardiac, medical equipment, MRI machines, medical news, open MRI, MRI image, MRI picture, MRI test, medical diagnostic, MRI terms, MRI definitions, MRI scanner, MRI physics, MRI procedures, MRI technology, MRI history, physical MRI - MOLECULAR TUMBLING RATE - MR-TIP: DATABASE Reciprocals of the relaxation times, T1 and T2 (R1 = 1/T1 and R2 = 1/T2).There is often a linear relation between the concentration of MR contrast agents and the resulting change in relaxation rate.The rate of relaxation is influenced by molecules with protons that are tumbling.A slower tumble rate will result in faster relaxation rate (shorter relaxation time). MRI - 5 GAUSS LINE - MR-TIP: DATABASE The principal contraindications of the MRI procedure are mostly related to the presence of metallic implants in a patient. The risks of MRI scans increase with the used field strength.In general, implants are becoming increasingly MR safe and an individual evaluation is carried out for each case. MRI Safety Guidance Some patients should not be examined in MRI machines, or come closer thanthe
MRI - CHORUS 1.5T™ - MR-TIP: DATABASE CHORUS 1.5T ™. From ISOL Technology. 'Next generation MRI system 1.5T CHORUS developed by ISOL Technology is optimized for both clinical diagnostic imaging and for research development. CHORUS offers the complete range of feature oriented advanced imaging techniques- for both clinical routine and research. The compact shortbore magnet, the
MRI - POWER CONSUMPTION IN KW - MR-TIP: DATABASE The power consumption is around 1.3 kW and the needed m in imum floor space is an area of 16 sq m. At RSNA 2006 Hologic In c. in troduced a new dedicated extremity MRI scanner, the Opera. Manufactured by Esaote is the Opera a redesign of Esaote's 0.2 Tesla E-Scan XQ platform, which now enables complete imag in g of all extremities, in clud in g MRI - MAGNETOHYDRODYNAMIC EFFECT - MR-TIP: DATABASE Magnetohydrodynamic Effect. This effect is an additional electrical charge generated by ions in blood (loaded particles) moving perpendicular to the magnetic field . At 1.5 T, no significant changes are expected; at 6.0 T a 10% blood pressure change is expected. A blood pressure increase is predicted theoretically for a field of 10T.
MRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi andMRI ACRONYMS
A comparison of the MRI specific acronyms for magnetic resonance imaging sequences, e.g. TSE, FSE, FLAIR, STIR, FLASH, and FISP, used by the manufacturers GE, Philips MRI - POST PROCESSING - MR-TIP: DATABASE Better MRI equipment and software design along with the latest information technology improves system maintenance and overall communication. Software and digital imaging and communications in medicine (DICOM) compatibility allows to network into hospital databases, helps to modify pulse sequences, data post processing, and archiving via picture archiving and communication system (PACS). MRI - KEYHOLE - MR-TIP: DATABASE Keyhole in MRI Technology +Intera 0.5T +Intera 1.0T +Intera 1.5T +Intera 3.0T. Keyhole imaging is used for dynamic imaging with contrast medium.The advantage is that the keyhole technique increases temporal resolution without a loss of spatial resolution by limited data acquisition. Keyhole Fourier imaging updates the low spatial frequencies of the original full, high-resolution data set. MRI - ARRAY PROCESSOR - MR-TIP: DATABASE MRI computer can be divided into central processing unit (CPU), consisting of instruction, interpretation and arithmetic unit plus fast access memory, and peripheral devices such as bulk data storage and input and output devices (including, via the interface, the spectrometer).The computer controls the RF pulses and gradients necessary to acquire data, and process the data to produce spectra MRI - SHIMMING - MR-TIP: DATABASE Shimming by adjusting the position of suitable pieces of ferromagnetic metal within or around the main magnet of a MRI system. Typically, the iron is in the form of small plates which are held in removable trays. The magnetic field is plotted, the position and quality of the iron required is then calculated and the appropriate 'shims' put in place. . Several repetitions of this process will MRI - SHOT - MR-TIP: DATABASE In multi shot technique (also called mosaic imaging), a group of samples, which are contiguous in k space are acquired in the same sequence repetition. The phase encoding steps or profiles are split into ' shot s' (sub-acquisitions). The shot interval is the timebetween the shot
MRI - POWER CONSUMPTION IN KW - MR-TIP: DATABASE The power consumption is around 1.3 kW and the needed m in imum floor space is an area of 16 sq m. At RSNA 2006 Hologic In c. in troduced a new dedicated extremity MRI scanner, the Opera. Manufactured by Esaote is the Opera a redesign of Esaote's 0.2 Tesla E-Scan XQ platform, which now enables complete imag in g of all extremities, in clud in g MRI - RING ARTIFACT - MR-TIP: DATABASE A moiré pattern is an interference pattern created for example when two grids are overlaid at an angle, or when they have slightly different mesh sizes. The human visual system creates an imaginary pattern of roughly horizontal dark and light bands, the moiré pattern that appears to be superimposed on the lines. In MRI, the appearance of moire f ring es can be caused by a variety of reasons MRI FORUM - QUESTION P8 - MR-TIP.COM The medical forum and radiology forum for the information exchange of views about magnetic resonance experience. Tips, solutions, discussions and perspective on MRI examinations, MRI equipment, MRI trends and opinions for radiologists, technologists, MRI technicians, radiographer, medical school students, administrators, and industryprofessionals.
WELCOME TO MR-TIP.COM, Magnetic Resonance - Technology Information Portal (www.mr-tip.com) is a free web portal for magnetic resonance imaging. Radiologists, technicians, technologists, administrators, and industry professionals can find information about magnetic resonance basics, technology, artifacts, contrast agents, coils, sequences, links, events, abbreviations, greeks, symbols, units and measurements, newsMRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi and MRI - CRYOGEN - MR-TIP: DATABASE A cooling agent, typically liquid helium or liquid nitrogen used to reduce the temperature of the magnet windings in a superconducting magnet.All cryogen ic liquids are gases at normal temperatures and pressures. Different cryogen s become liquids under different conditions of temperature and pressure, but all have two properties in common: they are extremely cold, and small amounts of liquid MRI - SINEREM - MR-TIP: DATABASE Sinerem ® is the brand name (same as Combidex®) for an ultrasmall superparamagnetic iron oxide to detect metastatic disease in lymph nodes.Metastatic nodes show less uptake of this MRI contrast agent, which results in less signal decrease and allows the differentiation of normal lymph nodes from normal-sized, metastatic nodes. Lymph node imaging with Sinerem ® is performed 24 to 36 hours MRI - T2 MEDIC - MR-TIP: DATABASE Several thousand entries of medical information with MRI related topics for radiology education, e.g., NMR, spectroscopy, research, claustrophobia, diagnostic, cardiac, medical equipment, MRI machines, medical news, open MRI, MRI image, MRI picture, MRI test, medical diagnostic, MRI terms, MRI definitions, MRI scanner, MRI physics, MRI procedures, MRI technology, MRI history, physical MRI - MOLECULAR TUMBLING RATE - MR-TIP: DATABASE Reciprocals of the relaxation times, T1 and T2 (R1 = 1/T1 and R2 = 1/T2).There is often a linear relation between the concentration of MR contrast agents and the resulting change in relaxation rate.The rate of relaxation is influenced by molecules with protons that are tumbling.A slower tumble rate will result in faster relaxation rate (shorter relaxation time). MRI - 5 GAUSS LINE - MR-TIP: DATABASE The principal contraindications of the MRI procedure are mostly related to the presence of metallic implants in a patient. The risks of MRI scans increase with the used field strength.In general, implants are becoming increasingly MR safe and an individual evaluation is carried out for each case. MRI Safety Guidance Some patients should not be examined in MRI machines, or come closer thanthe
MRI - CHORUS 1.5T™ - MR-TIP: DATABASE CHORUS 1.5T ™. From ISOL Technology. 'Next generation MRI system 1.5T CHORUS developed by ISOL Technology is optimized for both clinical diagnostic imaging and for research development. CHORUS offers the complete range of feature oriented advanced imaging techniques- for both clinical routine and research. The compact shortbore magnet, the
MRI - POWER CONSUMPTION IN KW - MR-TIP: DATABASE The power consumption is around 1.3 kW and the needed m in imum floor space is an area of 16 sq m. At RSNA 2006 Hologic In c. in troduced a new dedicated extremity MRI scanner, the Opera. Manufactured by Esaote is the Opera a redesign of Esaote's 0.2 Tesla E-Scan XQ platform, which now enables complete imag in g of all extremities, in clud in g MRI - MAGNETOHYDRODYNAMIC EFFECT - MR-TIP: DATABASE Magnetohydrodynamic Effect. This effect is an additional electrical charge generated by ions in blood (loaded particles) moving perpendicular to the magnetic field . At 1.5 T, no significant changes are expected; at 6.0 T a 10% blood pressure change is expected. A blood pressure increase is predicted theoretically for a field of 10T.
WELCOME TO MR-TIP.COM, Magnetic Resonance - Technology Information Portal (www.mr-tip.com) is a free web portal for magnetic resonance imaging. Radiologists, technicians, technologists, administrators, and industry professionals can find information about magnetic resonance basics, technology, artifacts, contrast agents, coils, sequences, links, events, abbreviations, greeks, symbols, units and measurements, newsMRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi and MRI - CRYOGEN - MR-TIP: DATABASE A cooling agent, typically liquid helium or liquid nitrogen used to reduce the temperature of the magnet windings in a superconducting magnet.All cryogen ic liquids are gases at normal temperatures and pressures. Different cryogen s become liquids under different conditions of temperature and pressure, but all have two properties in common: they are extremely cold, and small amounts of liquid MRI - SINEREM - MR-TIP: DATABASE Sinerem ® is the brand name (same as Combidex®) for an ultrasmall superparamagnetic iron oxide to detect metastatic disease in lymph nodes.Metastatic nodes show less uptake of this MRI contrast agent, which results in less signal decrease and allows the differentiation of normal lymph nodes from normal-sized, metastatic nodes. Lymph node imaging with Sinerem ® is performed 24 to 36 hours MRI - T2 MEDIC - MR-TIP: DATABASE Several thousand entries of medical information with MRI related topics for radiology education, e.g., NMR, spectroscopy, research, claustrophobia, diagnostic, cardiac, medical equipment, MRI machines, medical news, open MRI, MRI image, MRI picture, MRI test, medical diagnostic, MRI terms, MRI definitions, MRI scanner, MRI physics, MRI procedures, MRI technology, MRI history, physical MRI - MOLECULAR TUMBLING RATE - MR-TIP: DATABASE Reciprocals of the relaxation times, T1 and T2 (R1 = 1/T1 and R2 = 1/T2).There is often a linear relation between the concentration of MR contrast agents and the resulting change in relaxation rate.The rate of relaxation is influenced by molecules with protons that are tumbling.A slower tumble rate will result in faster relaxation rate (shorter relaxation time). MRI - 5 GAUSS LINE - MR-TIP: DATABASE The principal contraindications of the MRI procedure are mostly related to the presence of metallic implants in a patient. The risks of MRI scans increase with the used field strength.In general, implants are becoming increasingly MR safe and an individual evaluation is carried out for each case. MRI Safety Guidance Some patients should not be examined in MRI machines, or come closer thanthe
MRI - CHORUS 1.5T™ - MR-TIP: DATABASE CHORUS 1.5T ™. From ISOL Technology. 'Next generation MRI system 1.5T CHORUS developed by ISOL Technology is optimized for both clinical diagnostic imaging and for research development. CHORUS offers the complete range of feature oriented advanced imaging techniques- for both clinical routine and research. The compact shortbore magnet, the
MRI - POWER CONSUMPTION IN KW - MR-TIP: DATABASE The power consumption is around 1.3 kW and the needed m in imum floor space is an area of 16 sq m. At RSNA 2006 Hologic In c. in troduced a new dedicated extremity MRI scanner, the Opera. Manufactured by Esaote is the Opera a redesign of Esaote's 0.2 Tesla E-Scan XQ platform, which now enables complete imag in g of all extremities, in clud in g MRI - MAGNETOHYDRODYNAMIC EFFECT - MR-TIP: DATABASE Magnetohydrodynamic Effect. This effect is an additional electrical charge generated by ions in blood (loaded particles) moving perpendicular to the magnetic field . At 1.5 T, no significant changes are expected; at 6.0 T a 10% blood pressure change is expected. A blood pressure increase is predicted theoretically for a field of 10T.
MRI ACRONYMS
A comparison of the MRI specific acronyms about different options of MRI systems, e.g. Signal Averaging, Partial Echo, Fat Saturation, Water Excitation, Automatic Bolus Detection, Segmented K-Space Data Acquisition used by the manufacturers GE, Philips, Siemens, Picker, Elscint, Hitachi andMRI ACRONYMS
A comparison of the MRI specific acronyms for magnetic resonance imaging sequences, e.g. TSE, FSE, FLAIR, STIR, FLASH, and FISP, used by the manufacturers GE, Philips MRI - POST PROCESSING - MR-TIP: DATABASE Better MRI equipment and software design along with the latest information technology improves system maintenance and overall communication. Software and digital imaging and communications in medicine (DICOM) compatibility allows to network into hospital databases, helps to modify pulse sequences, data post processing, and archiving via picture archiving and communication system (PACS). MRI - KEYHOLE - MR-TIP: DATABASE Keyhole in MRI Technology +Intera 0.5T +Intera 1.0T +Intera 1.5T +Intera 3.0T. Keyhole imaging is used for dynamic imaging with contrast medium.The advantage is that the keyhole technique increases temporal resolution without a loss of spatial resolution by limited data acquisition. Keyhole Fourier imaging updates the low spatial frequencies of the original full, high-resolution data set. MRI - ARRAY PROCESSOR - MR-TIP: DATABASE MRI computer can be divided into central processing unit (CPU), consisting of instruction, interpretation and arithmetic unit plus fast access memory, and peripheral devices such as bulk data storage and input and output devices (including, via the interface, the spectrometer).The computer controls the RF pulses and gradients necessary to acquire data, and process the data to produce spectra MRI - SHIMMING - MR-TIP: DATABASE Shimming by adjusting the position of suitable pieces of ferromagnetic metal within or around the main magnet of a MRI system. Typically, the iron is in the form of small plates which are held in removable trays. The magnetic field is plotted, the position and quality of the iron required is then calculated and the appropriate 'shims' put in place. . Several repetitions of this process will MRI - SHOT - MR-TIP: DATABASE In multi shot technique (also called mosaic imaging), a group of samples, which are contiguous in k space are acquired in the same sequence repetition. The phase encoding steps or profiles are split into ' shot s' (sub-acquisitions). The shot interval is the timebetween the shot
MRI - POWER CONSUMPTION IN KW - MR-TIP: DATABASE The power consumption is around 1.3 kW and the needed m in imum floor space is an area of 16 sq m. At RSNA 2006 Hologic In c. in troduced a new dedicated extremity MRI scanner, the Opera. Manufactured by Esaote is the Opera a redesign of Esaote's 0.2 Tesla E-Scan XQ platform, which now enables complete imag in g of all extremities, in clud in g MRI - RING ARTIFACT - MR-TIP: DATABASE A moiré pattern is an interference pattern created for example when two grids are overlaid at an angle, or when they have slightly different mesh sizes. The human visual system creates an imaginary pattern of roughly horizontal dark and light bands, the moiré pattern that appears to be superimposed on the lines. In MRI, the appearance of moire f ring es can be caused by a variety of reasons MRI FORUM - QUESTION P8 - MR-TIP.COM The medical forum and radiology forum for the information exchange of views about magnetic resonance experience. Tips, solutions, discussions and perspective on MRI examinations, MRI equipment, MRI trends and opinions for radiologists, technologists, MRI technicians, radiographer, medical school students, administrators, and industryprofessionals.
Magnetic Resonance - Technology Information Portal Welcome to MRI Technology•* Images
* Sliders
* Congresses
* Acronyms
* Abbreviations
* Artifacts
* Coils
* Contrast Agents
* Devices
* MRI Safety
* Protocols
* Sequences
* Patient
Information
SHARE
* Database
* Forum
* News
* Resources
WELCOME TO MR-TIP.COM, the web portal for the 'MRI Professional'. From the basics to the latest news, you should find it here at MR-TIP.com. To name just a few topics: 'Artifacts ' with case studies and 'ImageGuidance',
'Contrast Agents ' with descriptions, 'Distribution Information'
and 'Drug Information',
'Pulse Sequence
',
'Device Information
',
'Safety Guidance
',
'News Service ', etc., all based on overviews and database entries with links to more than 2100 publications and resource sites.DATABASE
Several thousand entries with cross referenced information. To name just a few specific topics: Manufacturer's contact information, contrast agent's drug information and distribution table, specifications of devices, image guidance for artifacts etc. Most entries also include links to more specialized articles. Don't panic, it's easy to use, it's free and if it's MR-related, you will find ithere!
FORUM
Reading and actively participating in the forum's threads can be a good way to obtain a basic knowledge about a topic, and it also provides a perspective on trends and opinions. Finding support for the difficult examination experienced once a year. THE-MEDICAL-MARKET.COM You want to buy or sell MRI-related equipment - take a look at The-Medical-Market.com. Its Searchboard is free for members. If you would like to present your products at The-Medical-Market.com - it will be free for a limited time - please leave your contact data at www.The-Medical-Market.com > INTERNALS > Currently.NEWS
Links to the latest news in MR-technology from science and research, business and trading. Collected from pressrooms and news agencies - to keep you up to date.HELP
Help, FAQ, Lost & Found, provides hints and tricks for quick navigation. Known problems, general points of interest, etc..Common description:
How to get the most out of the services offered by MR-TIP.com without wasting time? Start reading here.PROTOCOL EXCHANGE
The long-term sense of the PEX is the possibility to exchange protocols on an unified base. Sorted by MRI systems and examinations, search and download the protocol you're interested in. On the other hand MR-TIP.com depends on your support. Please upload tested protocols. The PEX-form will evolve with the actual andupcoming needs.
CONGRESSES
Dates of congresses, conferences, meetings, symposiums, training courses, workshops, exhibitions, fairs etc.. Links to the sites of the organizers delivers the details, to complete the overview. Feel free to promote your own events.LINKS/RESOURCES
Still need more specific information, or just surf around in the MRI universe? Some thousand MRI-related searchable links and resources, categorized in 'The Link/Resource Directory'. The search function and the classification are based on title, description, keywords andauthor of the page.
ARTIFACTS
Special summary of artifacts with information and image guidance for each one. Case studies should help to improve imperfect images. Additional entries describe the general reduction of artifacts.CONTRAST AGENTS
Classification and characteristics of contrast agents with an overview and information about the development stage, the developer, the field of application and the global distribution.COILS
An overview for a general understanding about the different coil types and their uses. To choose the right coil, the best possible image quality, benefits and disadvantages are presented.SEQUENCES
More than 1oo pulse sequences from different MRI systems classified by the sequence type with detailed explanations, pulse sequence timing diagrams and range of applications.ABBREVIATIONS
Around 800 MR-technology related shorthand notations, for example from sequences, organizations, and techniques with interpretations and links to the corresponding references.GREEKS
The decryption of the secret quality Greek signs - more than 2500 years old and still in use, - what they mean and where they appear in magnetic resonance technology.SYMBOLS
Significant characters used to represent a quantity, an operation, a relation, or an abbreviation. All MRI-related and with the corresponding reference to the database description. UNITS & MEASUREMENTS Magnetic resonance related values or magnitudes adopted as units or standards in physical measurements, with definitions according to the international system of units as well as information for theirconversion.
ACRONYMS
Migrating or converting? Manufacturers use different acronyms for example for the same or similar sequence or measurement option. Hereis a comparison.
DEVICES
Provides information about the design and the hardware components of MRI devices, as well as advantages and disadvantages of the different field strengths. The overview classifies more than 50 MRI systems according to their field strength, range of application, construction and type of magnet. Database entries provide additional information ( manufacturer, picture, device information, specification table, links to manufacturer brochures, etc. ) for each device.IMAGES
MRI images and cine sequences from different examinations (brain, shoulder, knee, cardiac, breast etc). These images demonstrate different MRI sequences (SE, FSE, GRE, HASTE, STIR, T1, T2 weighted, etc.) in relation to the most frequent examinations. Adjustable brightness and contrast for best visibility; related database entries for further reading.SLIDERS
MRI sliders allow you to scroll through sequences of slides. The images show anatomic structures of joints, maximum intensity projections (MIP) of magnetic resonance angiography (MRA) procedures, thin slices of the skull base etc.MRI SAFETY
The MRI safety infosheet provides information about bioeffects of MRI procedures, hazards of magnetic forces, risks around the MRI environment, contraindications to MRI scans, precautions in pregnancy and proper patient management. Safety rules explain legal requirements and limits for safe handling of magnetic fields, gradient pulses and radio frequency energy. Other topics include MRI compatibility of implants, medical devices etc.POLL RESULTS
What is the 'Typical downtime of YOUR scanning system per week (40h)'?
You will find this and other results here.PATIENT INFORMATION
This InfoSheet contains information you should read before your MRI examination. General MRI information with details about safety, risks, and contraindications, MRI side effects like claustrophobia, acoustic noise and incompatibilities of implants as cardiac pacemakers and stents, details about the most common examinations like brain MRI, spine MRI, body MRI, etc.MOST READ:
Gadolinium
T2*
Pulse
Sequence Timing DiagramOpen
MRI
Brain
MRI
Phase
Encoding
Resovist
Functional
Magnetic Resonance ImagingSpine
MRI
Inversion
Recovery Sequence
Gradient
Echo Sequence
Superparamagnetic
Iron Oxide
Steady
State Free PrecessionFerumoxide
Pulse
Sequence
Contrast
Agents
Dotarem
Magnetic
Resonance AngiographyCombidex
Ultrasmall
Superparamagnetic Iron OxideK-Space
Fat
Suppression
T1
Weighted
Diffusion
T2
Weighted
Signal
Intensity
Out
of Phase
Gadopentetate
Dimeglumine
Gradient
Coil
Flip
Angle
POLL RESULTS
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