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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51176

Title: Prognostic Value of Functional Variables as Assessed by Gated Tl-201 Myocardial Perfusion SPECT for Major Adverse Cardiac Events in Patients with Coronary Artery Disease
Authors: Shen TY
Chang MC
Hung GU
Kao CH
Hsu BL
Contributors: 國立臺灣海洋大學:資訊工程學系
Keywords: Coronary artery disease
Gated SPECT
Major adverse cardiac events
Tl-201
Date: 2013-02
Issue Date: 2018-11-15T02:38:37Z
Publisher: Acta Cardiologica Sinica
Abstract: Abstract: Purpose:
Gated single photon emission computed tomography (SPECT) using thallium-201 (Tl-201) has the capacity to evaluate the earlier post-stress (PS) function compared to technetium-99m labeled tracers, and may be more sensitive in detecting transient ventricular dysfunction caused by stress-induced ischemia. The purpose of this study was to assess the prognostic value of functional variables obtained from Tl-201 gated SPECT as a predictor of major adverse cardiac events (MACE).

METHODS:
Four hundred and thirty-eight subjects who had known or suspected coronary artery disease and underwent clinically indicated dipyridamole-stress electrocardiography-gated Tl-201 SPECT were included in this study. Functional variables, including PS-ejection fraction (EF), PS-end systolic volume (ESV), PS-regional wall motion abnormality (RWA), reversible RWA and EF worsening, were generated to study the correlation with MACE (cardiac death, nonfatal infarction, unstable angina and coronary revascularization).

RESULTS:
Sixty-eight of the total 438 patients (15.5%) had MACE during the period of follow-up (a median time of 31 months), including 2 cardiac deaths, 9 non-fatal infarctions, 9 unstable angina and 48 coronary revascularizations. These events occurred significantly more frequently in patients with reversible RWA (28.8% vs. 7.1%, p < 0.0001), EF worsening (34.8% vs. 12.1%, p < 0.0001), PS-RWA (29.9% vs. 11.4%, p < 0.0001) and PS-EF < 45% (27.8% vs. 14.4%, p = 0.034). Using the Cox proportional hazards regression analysis, reversible RWA and EF worsening were two independent predictors of MACE, providing incremental prognostic value over clinical and perfusion-alone information.

CONCLUSIONS:
The functional assessment with Tl-201 gated SPECT was a useful prognosticator for patients who had known or suspected coronary artery disease.
Relation: 29(3) pp.243-250.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51176
Appears in Collections:[資訊工程學系] 期刊論文

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