Oxford Heart Centre, NIHR Biomedical Research Centre, Oxford University Hospitals, Oxford, United Kingdom.
EuroIntervention. 2017 Oct 20;13(8):935-943. doi: 10.4244/EIJ-D-17-00367.
The age-thrombus burden-index of microcirculatory resistance (ATI) score is a diagnostic tool able to predict suboptimal myocardial reperfusion before stenting, in patients with ST-elevation myocardial infarction (STEMI). We aimed to validate the ATI score against cardiac magnetic resonance imaging (cMRI).
The ATI score was calculated prospectively in 80 STEMI patients. cMRI was performed within 48 hours in all patients and in 50 patients at six-month follow-up to assess the extent of infarct size (IS%) and microvascular obstruction (MVO%). The ATI score was calculated using age (>50=1 point), pre-stenting index of microcirculatory resistance (IMR) (>40 and <100=1 point; ≥100=2 points) and angiographic thrombus score (4=1 point; 5=3 points). ATI score was closely related to final IS% (ATI.
微循坏阻力年龄血栓负荷指数（ATI）评分是一种诊断工具，能够预测 ST 段抬高型心肌梗死（STEMI）患者支架置入前的心肌再灌注效果不理想。本研究旨在通过心脏磁共振成像（cMRI）对 ATI 评分进行验证。
前瞻性纳入 80 例 STEMI 患者计算 ATI 评分。所有患者在 48 小时内行 cMRI 检查，50 例患者在 6 个月时行 cMRI 检查，以评估梗死面积（IS%）和微血菅阻塞（MVO%）的程度。ATI 评分采用年龄（>50 岁=1 分）、支架置入前的微循坏阻力指数（IMR）（>40 且<100=1 分；≥100=2 分）和冠状动脉造影血栓评分（4=1 分；5=3 分）计算。ATI 评分与最终 IS%（ATI.
