Simulation of phase effects in magnetic resonance flow imaging

Conference · Fri Jun 01 00:00:00 EDT 1990 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)

OSTI ID:6858360

Singh, M; Oshio, K ^[1]

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1. University of Southern California, Los Angeles, CA (USA). Dept. of Radiology

Using a phantom containing stationary and flowing regions, the phase related effects of flow on spin echo and echo planar images have been investigated. The role of parameters such as flow direction, mean velocity, velocity modulation, gradient pulses, echo time and data sampling time in producing artifacts and the reduction of these artifacts by a flow compensating pulse have been examined. It is shown that, due to the finite data sampling window. The flow compensating pulse cannot fully correct for phase shifts even for first-order motion.

• OSTI ID: 6858360
• Report Number(s): CONF-900143--
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) Vol. 37:3; ISSN 0018-9499; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

550602 -- Medicine-- External Radiation in Diagnostics-- (1980-)
61 RADIATION PROTECTION AND DOSIMETRY
62 RADIOLOGY AND NUCLEAR MEDICINE
655003* -- Medical Physics-- Dosimetry
DIAGNOSTIC TECHNIQUES
FLUID FLOW
IMAGE PROCESSING
MOCKUP
NMR IMAGING
PARAMETRIC ANALYSIS
PHANTOMS
PHASE SHIFT
PROCESSING
SIMULATION
SPIN ECHO
STRUCTURAL MODELS
TECHNOLOGY ASSESSMENT