کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4226481 1609792 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Atypical myocardial delayed enhancement after surgical ventricle restoration
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی رادیولوژی و تصویربرداری
پیش نمایش صفحه اول مقاله
Atypical myocardial delayed enhancement after surgical ventricle restoration
چکیده انگلیسی

ObjectiveTo retrospectively evaluate delayed enhancement after surgical ventricle restoration (SVR).Materials and methodsThirty patients with post-ischemic akinetic dilatation underwent cine and gadobenate dimeglumine-enhanced MRI before and 2–6 months after SVR. End-diastolic volume (EDV) normalized to body surface area (EDV index, EDVI), end-systolic volume index (ESVI), and ejection fraction (EF) of the left ventricle were obtained. Delayed enhancement involving subendocardial myocardium was considered typical (TDE) while enhancement apparently not involving subendocardium in its typical location was considered atypical (ADE). Wilcoxon signed-rank, Mann–Whitney U, and χ2 tests were used.ResultsAll 30 patients showed TDE prior to surgery but 16 of them (53%) showed ADE after SVR. Before SVR, EDVI (ml/m2) was 171 ± 101 in patients with ADE and 127 ± 41 in patients with TDE, ESVI (ml/m2) was 130 ± 105 and 94 ± 36, EF was 25 ± 6% and 24 ± 9%, respectively, without significant differences (P > 0.347). After SVR, EDVI (ml/m2) was 99 ± 24 and 89 ± 28 (P = 0.275), ESVI (ml/m2) 66 ± 24 and 65 ± 30, respectively, without significant differences (P > 0.275) while EF was 37 ± 12% and 29 ± 13%, respectively, with a near-significant difference (P = 0.077). The increase in EF before/after SVR was significant only for patients with ADE (P = 0.006). Of 20 patients in whom a patch had been used for SVR, 14 showed ADE and 6 TDE; of 10 patients without patch, 2 and 8, respectively (P = 0.010).ConclusionADE was found in about half of SVR patients and was associated with the use of patch and EF improvement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Radiology - Volume 81, Issue 3, March 2012, Pages e292–e297
نویسندگان
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