|
KMID : 0363819930270010051
|
|
Korean Journal of Nuclear Medicine
1993 Volume.27 No. 1 p.51 ~ p.58
|
|
|
Comparison of Polar Maps of Maps of Dipyridamole Stress/Rest MIBI Myocardial SPECT and Coronary Angiography in Coronary Artery Disease
|
|
이명철
이동수/이명용/최창운/손대원/정준기/이명묵/박영배/서정돈
|
|
|
Abstract
|
|
|
We have anlayzed the polar maps of dipyridamole stress/rest 99mTc-MIBI SPECT and compared the quantitated perfusion defects of dipyridamole stress polar map and the findings of coronary angiography in 56 pateints with coronary artery diseases. We
performed the same day dipyridamole stress-rest myocardial SPECT, reconstructed the polar maps according to Cedars-Sinai method and quantitated perfusion defects of total myocardium and the territory of each artery, comparing the polar maps of
patients
with normal files. Stenosis more than 50 percent was considered significant and myocardial ischemic score was calculated as summed score of percents of main coronary arteries.
Positive concordance of myocardial SPECT with coronary angiography were 82.6% with left anterior descending artery (LAD), 85.7% with left circumflex artery (LCx) and 78.6% with right coronary artery (RCA). Perfusion defect of SPECT polar map and
the
stenosis of coronary artery showed the contingency phi of 0.55 (p<0.0001) with total atreries, 0.38 (p=0.016) with LAD, 0.50 (p<0.0001) with LCx and 0.40 (p=0.007) with RCA. Dipyridamole stress percent defect of polar map was correlated with
myocardial
ischemic score with Spearman's rho of 0.47 (p=0.001) in total arteries, 0.48 (p=0.001) in LAD, 0.56 (p<0.001) in LCx and 0.38 (p=0.002) in RCA.
These findings revealed that defect of the dipyridamole stress myocardial 99mTc-MIBI SPECT and the percent extent of this defect were related with significant artery stenosis of individual arteries and the degree of stenosis. We thought that we
could
use the defects in the polar map of dipyridamole stress 99mTc-MIBI SPECT for the quantification of myocardiasl perfusion decrease.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
 
|