Abstract #0661
Using flow models to study the effects of bolus timing on CE-MRA images
Gabriel Acevedo-Bolton 1 , Farshid Faraji 1 , and David Saloner 1,2
1
Radiology and Biomedical Imaging, UCSF, San
Francisco, CA, United States,
2
VAMC
San Francisco, CA, United States
Image quality in patients undergoing CE-MRA is sensitive
to correct synchronization between imaging initiation
and the contrast bolus. A patient specific flow model
was used to study the effects of scan initiation
relative to contrast injections on 3D CE-MRA images. We
found unless the center of k-space was in after the
contrast upswing poor image quality resulted. With the
high temporal resolution available, we were able to
resolve the transport of contrast into the model. More
importantly, the use of a flow model provides a robust
and repeatable test bed to study timing effects.
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