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首页> 外文期刊>Circulation journal >Atypical Exercise Stress Myocardial Perfusion SPECT Imaging in a Patient With Effort Angina Pectoris
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Atypical Exercise Stress Myocardial Perfusion SPECT Imaging in a Patient With Effort Angina Pectoris

机译：努力型心绞痛患者的非典型运动应激心肌灌注SPECT显像

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摘要

Exercise or pharmacological stress myocardial perfusion single-photon emission computed tomography (SPECT) has been used in daily clinical practice as a reliable diagnostic modality and a prognostic marker for patients with coronary artery disease. We herein report atypical exercise stress myocardial perfusion SPECT imaging in a patient with effort angina pectoris.A 58-year-old male who had felt anterior chest pain during walking was referred to our hospital. He was suspected of having effort angina pectoris, and he underwent exercise stress/rest myocardial perfusion SPECT with a dual-isotope protocol using ~201Tl at rest and ~99mTc-tetrofosmin for stress imaging. Stress SPECT imaging showed a reduced tracer accumulation only in the basal anterior segment, including the anterolateral and a part of the anteroseptal segments (Figure 1A, black triangles). Rest imaging did not show reduced tracer accumulation in any segments, thus suggesting myocardial ischemia in the basal anterior wall. Coronary angiography was then carried out. The right coronary angio-grams did not show any significant stenosis (Figure 2A).
机译：运动或药理应激性心肌灌注单光子发射计算机断层扫描（SPECT）已在日常临床实践中用作可靠的诊断方式和冠状动脉疾病患者的预后标志物。我们在此报告了患有努力型心绞痛的患者的非典型运动应激心肌灌注SPECT成像。一名58岁男性在步行过程中感到前胸痛，被转诊至我院。他被怀疑患有心绞痛，他接受了双重同位素方案的运动应激/静息心肌灌注SPECT，静息时使用〜201Tl，静息时使用〜99mTc-tetrofosmin进行压力成像。应力SPECT成像显示，示踪剂积累仅在基底前节（包括前外侧和部分前隔节）中减少（图1A，黑色三角形）。静息成像在任何节段均未显示示踪剂积累减少，因此提示基底前壁有心肌缺血。然后进行冠状动脉造影。右冠状动脉造影图未显示任何明显的狭窄（图2A）。

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