Comparison of the degree of coronary stenoses by multidetector computed tomography versus by quantitative coronary angiography.
Sixteen-slice multidetector computed tomography (MDCT) and quantitative coronary angiography (QCA) were performed in 29 patients. Quantification of the degree of luminal narrowing and lesion length measurements were performed independently on MDCT and QCA at 42 sites with sufficient computed tomographic image quality. The correlation between MDCT and QCA for quantifying the degree of stenosis was excellent (r2 = 0.93), although a systematic overestimation was observed by MDCT (bias 4% +/- 8%). The correlation between MDCT and QCA was moderate with respect to lesion length (r2 = 0.54). In the absence of severe calcifications or motion artifacts, MDCT permits noninvasive quantification of coronary stenosis.
Cury
Ricardo C
RC
Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA. rcury@partners.org
Pomerantsev
Eugene V
EV
Ferencik
Maros
M
Hoffmann
Udo
U
Nieman
Koen
K
Moselewski
Fabian
F
Abbara
Suhny
S
Jang
Ik-Kyung
IK
Brady
Thomas J
TJ
Achenbach
Stephan
S
D000368:Aged; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*