کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2934836 1576355 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Usefulness of measuring coronary lumen density with multi-slice computed tomography to detect in-stent restenosis
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
Usefulness of measuring coronary lumen density with multi-slice computed tomography to detect in-stent restenosis
چکیده انگلیسی

BackgroundA method to objectively detect in-stent restenosis (ISR) with multi-slice computed tomography (MSCT) has not been established yet. We aimed to evaluate the usefulness of measuring coronary lumen density with MSCT to detect ISR.MethodsForty-seven coronary stented lesions in 38 patients were evaluated with 16-slice CT (collimation thickness, 0.625 mm). In each assessable lesion, the stent lumen was visually evaluated, and reference CT density proximal to the stent (RCTD) and minimum CT density of the in-stent lumen (SCTD) were measured. ISR was defined as > 50% diameter stenosis measured by quantitative coronary angiography (QCA).ResultsOf 47 stented lesions, 35 (74%) were assessable, and there were 12 ISR (+) and 23 ISR (−) lesions. Mean ΔCTD (RCTD − SCTD) of the ISR (+) group was significantly greater than that of the ISR (−) group (196 ± 101 vs. 7 ± 30 HU, p < 0.001). Predictive accuracy of quantitative evaluation of ISR using our best cutoff value of ΔCTD was higher than that of visual evaluation (97% vs. 83%, p < 0.05). The ΔCTD showed a higher correlation with percent diameter stenosis (r = 0.85, p < 0.001) than with SCTD (r = − 0.73, p < 0.001).ConclusionsMeasuring differences of CT densities between reference vessel lumens and in-stent lumens using MSCT is a convenient and useful technique to detect ISR.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Cardiology - Volume 124, Issue 2, 29 February 2008, Pages 239–243
نویسندگان
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