[201TI心肌显像异常的不同模式及其机制]。

Wei Ouyang, Xue-xian Qian, Guo-rong He, Jin-hua Liu
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引用次数: 0

摘要

目的:对运动(2011)心肌显像异常类型进行分类并探讨其机制。方法:对203例临床疑似冠状动脉疾病患者行运动(201)TI心肌显像,其中血压正常者74例,无左心室肥厚者78例,有左心室肥厚者51例。所有患者均于(2011)TI心肌显像前后1个月行冠状动脉造影,异常表现分为节段性、非节段性和混合型。对心肌灌注异常(201)、冠状动脉造影结果正常的患者进行随访。结果:在无LVH和合并LVH的高血压患者中,节段型、非节段型和混合型灌注异常比例分别为52/60和32/58,4/60和9/58,4/60和17/58。3种冠状动脉造影正常的比例分别为17/84、13/13和10/21。在随访的40例患者中,节段性异常5例,混合异常2例发生大冠状动脉病变,节段性异常患者均未发现大冠状动脉病变。结论:在合并和不合并LVH的高血压患者中,段性灌注异常可能与冠状动脉大动脉解剖和功能狭窄有关,非段性灌注异常可能仅与冠状动脉微血管疾病有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[Different patterns of abnormalities in exercise 201TI myocardial scintigraphy and their mechanisms].

Objective: To categorize the patterns of abnormalities in exercise (201)TI myocardial scintigraphy and explore the mechanisms.

Methods: Exercise (201)TI myocardial scintigraphy was performed in 203 patients with clinically suspected coronary artery disease, including 74 normotensive patients, 78 hypertensive patients without left ventricle hypertrophy (LVH) and 51 hypertensive patients with LVH. All the patients underwent coronary angiography one month before or after (201)TI myocardial scintigraphy, and the patterns of abnormal findings were categorized as segmental, non-segmental and mixed patterns. Patients with abnormal (201)TI myocardial perfusion and normal coronary angiographic findings were followed up.

Results: In hypertensive patients without and with LVH, the ratios of abnormal perfusion in segmental, non-segmental and mixed types were 52/60 and 32/58, 4/60 and 9/58, and 4/60 and 17/58, respectively. The ratios of normal coronary angiography in the 3 types were 17/84, 13/13 and 10/21, respectively. Among the 40 patients followed up, 5 with segmental abnormality and 2 with mixed abnormalities developed large coronary artery disease, which was found in none of the patients with segmental abnormality.

Conclusions: In hypertensive patients with and without LVH, segmental perfusion abnormalities may be attributed to the anatomic and functional stenosis of the large coronary arteries, and the non-segmental abnormal perfusion might be only possible with coronary microvascular diseases.

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