کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1847928 | 1033447 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Proportion of viable myocardium is more reliable than semi-quantitative score in predicting functional recovery: a pilot study of PET myocardial viability imaging
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
PET myocardial viability imaging is the “gold standard” for the non-invasive assessment of myocardial viability. The research aims to find out the best methods of imaging interpretation in predicting the postoperative functional recovery. Twenty-one CAD patients with multi-vessel involvement were recruited. All patients underwent gated myocardial perfusion imaging(G-MPI) and FDG PET myocardial imaging within 2 weeks before coronary artery bypass grafting. The postoperative G-MPI was performed in all patients 3 months after the surgery. Out of the total 420 segments, 164 segments of ischemic myocardium were detected by preoperative G-MPI. Among them, 93 ischemic segments were identified as non-viable (difference scoreâ¥GT0) and the rest 71 segments were identified as viable(difference score<0). The proportion of viable segments (the ratio of viable segments versus ischemic segments) and summed difference score of metabolism to perfusion were calculated. The patients were further divided into 2 groups according to the proportion of viable myocardium: group I (the proportionâ¥GT50%, 12 cases) and group II (the proportion<50%, 9 cases) while another division was made according to SDS: group A (SDSâ¥GT0), group B (-5â¤GTSDS<0) and group C (SDS<-5). The diagnostic accuracy of proportion of viable segments and SDS in predicting the post-revascularization improvement in the left ventricular ejection fraction by at least 5 or more ejection fraction units was 88.89% (8/9) and 55.56% (5/9) respectively. It is concluded that both approaches allow accurate evaluation of myocardial viability. Furthermore, the proportion of viable myocardium is more reliable in predicting the postoperative functional recovery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Science and Techniques - Volume 19, Issue 1, February 2008, Pages 32-38
Journal: Nuclear Science and Techniques - Volume 19, Issue 1, February 2008, Pages 32-38
نویسندگان
Jiayin ZHANG, Ye KONG, Jian ZHOU, Jianfeng ZHANG, Liying ZHANG, Chao WANG, Chengmo ZHU, Biao LI,