Abstract

[Objective] By comparing the images of 64-slice multidetector computed tomography (MDCT)and selective coronary angiography(CAG),to investigate the clinical significance of 64-Slice MDCT angiography on coronary in-stent restenosis in elderly patients.[Methods] The study population consisted of 97 stents implanted in coronary arteries of 57 elderly patients who underwent selective coronary angiography preceded by 64-slice MDCT.[Results] The sensitivity,specificity,positive and negative predictive value,accuracy of 64-slice MDCT diagnose in-stent restenosis were 77.8％,90.0％,75.0％ and 91.3％.The detection with 64-slice MDCT in-stent restenosis of positive predictive value,specificity and sensitivity of diameter ≥ 3.0 mm stents were better than that of the diameter ＜ 3.0 mm stents.[Conclusions] 64-slice MDCT is a safe,valid method for screening and diagnosing of in-stent restenosis in elderly patients with coronary artery disease. Key words: Multidetector computed tomography ; Coronary angiography; Elderly; Coronary artery disease; In-stent restenosis

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