[Comparison of coronary artery bypass graft imaging between 64-slice and 16-slice spiral CT].
OBJECTIVE
To compare the coronary artery bypass graft (CABG) imaging between 16-slice spiral CT and 64-slice spiral CT.


METHODS
Totally 27 patients with CABG received multi-slice spiral CT imaging and the results were retrospectively analyzed. Among them, 8 patients received 16-slice spiral CT scanning, 19 patients received 64-slice spiral CT scanning.


RESULTS
The evaluability rates of 64-slice spiral CT in evaluating the proximal anastomosis, bypass graft, distal anastomosis, and distal blood vessel were 100%, 100%, 90.2%, and 93.9%, respectively, while those of 16-slice spiral CT were 92.3%, 95.2%, 90.0%, and 90.0%, respectively. The patency rates of the above four aspects of 64-slice spiral CT were 66.7%, 70.0%, 71.7%, and 70.0%, respectively, while those of 16-slice spiral CT were 83.3%, 85.0%, 83.3%, and 88.9% .


CONCLUSIONS
64-slice spiral CT is superior to 16-slice spiral CT in CABG imaging. It can be used as a non-invasive tool for the post-operative follow-up of CABG.
Zhang
Zhu-hua
ZH
Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
Jin
Zheng-yu
ZY
Kong
Ling-yan
LY
Wang
Yi-ning
YN
Song
Lan
L
Wang
Yun
Y
Wang
Lin-hui
LH
Zhao
Wen-min
WM
Mou
Wen-bin
WB
Zhang
Li-ren
LR
Li
Dong-jing
DJ
Lin
Song-Bai
SB
Zhang
Shu-yang
SY
Miao
Qi
Q
D000368:Aged; D017023:Coronary Angiography / Q000379:methods*; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000601:surgery; D005260:Female; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D036542:Tomography, Spiral Computed / Q000379:methods*