CZT-SPECT心肌动脉血流与冠状动脉狭窄之间的关联:一个横截面研究
Zhang Fang1, Wenyi Cai1, Bei Chen1
1Department of Cardiology, People's Hospital of Jiangsu Province, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China.
Experimental and therapeutic medicine
|June 16, 2023
概括
-- telluride 单光子发射计算断层扫描 (CZT-SPECT) 参数,区域差分 (DS) 和冠状动脉流量储备 (CFR),有效诊断冠状动脉狭窄. 结合DS和CFR可以提高冠状动脉疾病的诊断准确度.
科学领域:
- 心血管成像 - 心血管成像
- 核心脏病学 核心脏病学
- 放射学 放射学是一门学科.
背景情况:
- 来自CZT-SPECT对冠状动脉狭窄的定量和半定量心肌血流参数的诊断价值尚未得到充分确立.
- 对冠状动脉疾病的准确评估依赖于精确检测冠状动脉狭窄.
研究的目的:
- 评估来自CZT-SPECT的区域差异得分 (DS) 和冠状动脉流量储备 (CFR) 在疑似或已知的冠状动脉疾病患者的诊断效用.
- 为了比较个别参数的诊断性能与检测冠状动脉狭窄的组合.
主要方法:
- 24名患者接受了CZT-SPECT和冠状动脉血管学.
- 区域DS和CFR是根据CZT-SPECT数据计算的.
- 接收器操作特征 (ROC) 曲线分析,净重新分类指数 (NRI) 和综合歧视改进 (IDI) 用于评估狭窄 (≥50%和≥75%) 的诊断性能.
主要成果:
- 与单独使用DS相比,DS和CFR的组合显示出对冠状动脉狭窄的更好的预测能力 (≥50%) (AUC:0.757与0.653;NRI:0.197-1.060;IDI:0.0150-0.1391).
- 对于≥75%的狭窄症,联合的DS和CFR也显示出与单独的DS (AUC:0.760) 相比,增强了预测能力 (AUC:0.811).
- 单独的CFR也显示了对≥75%的狭窄症 (IDI: -0.3392至 -02860) 的诊断性能比DS有所改善.
结论:
- 来自CZT-SPECT的区域DS和CFR都具有冠状动脉狭窄的诊断价值.
- 通过结合DS和CFR,提高检测冠状动脉狭窄的诊断效率.
- DS和CFR的组合为识别冠状动脉疾病提供了增强的预测能力.
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