Anatomically tailored k-Space sampling for bolus-chase three-dimensional MR digital subtraction angiography.
The purpose of this study was to evaluate a variable k-space sampling method for bolus-chase three-dimensional magnetic resonance digital subtraction angiography in the arterial system from the abdomen to the calf. Imaging time was minimized by tailoring the acquisition according to the vascular anatomy of the station. For images obtained in 30 patients, results with the modified protocol were compared to those with the previously published protocol. For all stations, significant improvement (P <.001) was found with the modified protocol.
Department of Radiology, Weill Medical College of Cornell University, 515 E 71st St, New York, NY 10021, USA. watts@mri.med.cornell.edu
R
R
Watts
Y
Y
Wang
M R
MR
Prince
P A
PA
Winchester
N M
NM
Khilnani
K C
KC
Kent
D000328:Adult; D000368:Aged; D015901:Angiography, Digital Subtraction / Q000379:methods*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged