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| | | | | | | Searchterm 'Pulse Sequence' was also found in the following services: | | | | |
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(IVIM) Spins moving in fluids with different velocities and possibly in different directions.
This is being found to a small degree in all tissues as a result of capillary perfusion or diffusion. Important velocity changes occur as one moves from the vessel wall towards the center of the vessel.
Hence, spins (to a variable degree) have different velocities within a single imaging voxel.
This effect can be measured using special pulse sequences such as in diffusion imaging or diffusion weighed imaging. When the velocity differences are marked, as occurs in larger blood vessels, effects due to IVIM are visible in standard MR images and give rise to flow related dephasing. The effects are more visible when longer echo times are used. | | | | | Further Reading: | | Basics:
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| | | Searchterm 'Pulse Sequence' was also found in the following service: | | | | |
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| | | | | | • View the DATABASE results for 'Inversion Time' (14).
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Spin dephasing for complex flow patterns like turbulence. This effect must be taken into account when evaluating the extent of vascular stenosis. The degree of the signal loss depends on the flow model and pulse sequence used. | | | | | |
| | | Searchterm 'Pulse Sequence' was also found in the following services: | | | | |
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| | | | • View the DATABASE results for 'Liver Acquisition with Volume Acquisition' (3).
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| | | Searchterm 'Pulse Sequence' was also found in the following service: | | | | |
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From Siemens Medical Systems;
MAGNETOM Avanto with Tim - Total imaging matrix technology.
For true whole-body anatomical coverage. For ultra-fast image
acquisition. Aids the physician in fast and precise
evaluation of systemic diseases like colon cancer, metastasis imaging, vessel diseases, and preventional exams. For claustrophobic patients,
MAGNETOM Avanto enables feetfirst exams for nearly all MR procedures. For obese patients, MAGNETOM Avanto supports up to 200 kg (400 lbs), without table movement restrictions. The AudioComfort technology enables up to a 30 dB(A) acoustic noise reduction, that means nearly all clinical routine sequences are running under 99 dB(A).
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Compact short bore
Body, Tim [32 x 8], Tim [76 x18], Tim [76 coil elements with up to 32 RF channels]
GRE, IR, FIR, STIR, TrueIR/FISP, FSE, FLAIR, MT, SS-FSE, MT-SE, MTC, MSE, EPI, 3D DESS//CISS/PSIF, GMR
IMAGING MODES
Single, multislice, volume study, multi angle, multi oblique
1024 x 1024 full screen display
POWER REQUIREMENTS
380/400/420/440/480 V
Passive, act.; 1st order std./2nd opt.
| | | | • View the DATABASE results for 'MAGNETOM Avanto™' (2).
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