Service de Radiologie A&C, Centre Hospitalier Universitaire de Besançon, Hôpital Jean Minjoz, France.
Eur Radiol. 2009 Dec;19(12):2913-8. doi: 10.1007/s00330-009-1498-z.
The purpose of this study was to prospectively evaluate the safety of cardiac magnetic resonance (CMR) imaging at 3 T performed early (less than 14 days) after bare metal or drug-eluting coronary stent implantation in patients with acute myocardial infarction (AMI). Seventy-two consecutive patients with AMI treated by percutaneous revascularisation with a stent underwent CMR examination with a median delay of 6 days. Patients were followed-up for major adverse cardiac events, during hospitalisation and at 6 months. After CMR imaging, no acute stent thrombosis, death or repeated AMI were recorded at 6-month follow-up. Two symptomatic in-stent restenoses and two silent in-stent restenoses were recorded, at a mean delay of 106 days. In our population, we found a target revascularisation rate of 5.6%. This is consistent with the 6-month event rates after coronary artery stent (CAS) placement for AMI, evaluated by several studies. This preliminary clinical study supports the safety of 3-T CMR imaging performed early after coronary stent placement.
本研究旨在前瞻性评估急性心肌梗死（AMI）患者在裸金属或药物洗脱冠状动脉支架植入后早期（<14 天）行心脏磁共振（CMR）成像的安全性。72 例接受经皮血运重建支架治疗的 AMI 连续患者行 CMR 检查，中位延迟时间为 6 天。患者在住院期间和 6 个月时接受主要不良心脏事件随访。CMR 成像后，6 个月随访时未记录到急性支架血栓形成、死亡或再次 AMI。在平均延迟 106 天后，记录到 2 例症状性支架内再狭窄和 2 例无症状支架内再狭窄。在我们的人群中，我们发现靶血管血运重建率为 5.6%。这与几项研究评估的 AMI 后冠状动脉支架（CAS）置入后 6 个月的事件发生率一致。这项初步临床研究支持早期行冠状动脉支架置入后行 3T CMR 成像的安全性。
