원저 : 관동맥우회로술 전후의 디피리다몰 부하 / 휴식 심근 SPECT를 이용한 수술 결과의 평가 ( Evaluation of Result of CABG by Comparison of Pre - and Post - operative Myocardial SPECT ) () |
Author |
고창순(Chang Soon Koh),이명철(Myung Chul Lee),정준기(June Key Chung),이동수(Dong Soo Lee),이원우(Won Woo Lee),김기봉(Ki Bong Kim),현인영(In Young Hyun),강건욱(Keon Wook Kang), |
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Affiliation |
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Abstract |
Coronary angiography should be performed to verify the
patency of bypass graft if coronary artery disease is
said to be surgically corrected. Rest/stress myocardial
SPECT could be used as a noninvasive alternative to
prove patency of bypass graft and functional
significance of graft patency by showing improvement of
rest perfusion and perfusion reserve after operation.
We evaluated the outcome of coronary artery bypass
graft surgery by comparing rest/dipyridamole- stress
myocardial SPECT before and after operation. Myocardial
SPECT were performed 19¡¾23 days before and 108¡¾19
days after operation in 44 patients(M:F=25:19).
Segmental perfusion were scored with 0(normal) to
3(defect) independently for each image set of rest and
stress. Perfusion scores were compared between pre and
postoperative images. Rest/stress images of pre and
post- operative SPECT were compared in paired sets.
Postoperative change of perfusion was determined as no
change, improvement or aggravation for each artery
territory. Postoperative outcome of patients were
analyzed. Overall, 74%(158 segments) of 215 segments
which had perfusion decrease before operation showed
improvement. Among 60 artery territories, 37
territories(62%) improved. Among 42 patients with
perfusion decrease in preoperative SPECT, 21
patients(47%) improved after operation. Severe
persistent defects improved in 43%(6/14). We concluded
that bypass surgery improved myocardial perfusion in
dipyridamole stress induced or persistent decrease and
that rest/stress myocardial SPECT could be used as a
guide for which artery should be operated. |
Keyword |
Dipyridamole, Myocardial SPECT, Coronary artery bypass graft |
Full text Article |
28501626.pdf
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