Coronary MR angiography: true FISP imaging improved by prolonging breath holds with preoxygenation in healthy volunteers.
In 15 healthy volunteers undergoing coronary magnetic resonance (MR) angiography, the breath-hold duration with and without preoxygenation was measured. The effect of preoxygenation on coronary artery imaging was also evaluated. A three-dimensional magnetization-prepared true fast imaging with steady-state precession sequence was employed for coronary MR angiography. All subjects showed an increase in comfortable breath-hold duration with preoxygenation. This extra imaging time allowed coronary artery imaging with increased spatial resolution.
McCarthy
Richard M
RM
Department of Radiology, Northwestern University Medical School, Suite 700, 448 E Ontario St, Chicago, IL 60611, USA.
Shea
Steven M
SM
Deshpande
Vibhas S
VS
Green
Jordin D
JD
Pereles
F Scott
FS
Carr
James C
JC
Finn
J Paul
JP
Li
Debiao
D
D000328:Adult; D017023:Coronary Angiography / Q000379:methods*; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000008:administration & dosage*; D012119:Respiration; D013997:Time Factors
D010100:Oxygen