论文部分内容阅读
作者对21例临床确诊的急性心肌梗塞病人作了Gd-DTPA 增强MR 检查,以评定心肌梗塞的范围。病人分为二组:第一组9例,为再通组分别经静脉注射75万IU 链激酶溶栓治疗或者行冠状动脉成形术,并由冠状动脉造影证实在梗塞4小时内动脉再通。第二组12例,为对照组,未经再通治疗或治疗后造影证实无再通。所有的病人在急性心肌梗塞后8±4天作MR 检查,16例病人在第26±11天时重复MR 检查。MR 场强0.5T。采用自旋回波并由心电门控沿真短轴对左心室范围作10mm 层厚连续取象。所有的MR 均经定量分析。结果显示:第一组(早期再通组)病人平均心肌梗塞范围为8%±5%。第二组病人心肌梗塞范围为15%±4%。
The authors performed 21 Gd-DTPA enhanced MR examinations in 21 clinically diagnosed acute myocardial infarction patients to assess the extent of myocardial infarction. Patients were divided into two groups: the first group of 9 cases, for the recanalization group were intravenous 750,000 IU streptokinase thrombolytic therapy or line of coronary angioplasty by coronary angiography confirmed in 4 hours after infarction recanalization. The second group of 12 cases, as the control group, without recanalization or post-treatment angiography confirmed no recanalization. All patients underwent MR examination 8 ± 4 days after acute myocardial infarction and 16 patients underwent repeat MR examination on day 26 ± 11. MR field strength 0.5T. Using spin echo and ECG gating along the true short axis of the left ventricle range for continuous 10 mm layer thickness. All MRs were quantitatively analyzed. The results showed that: the first group (early recanalization group) patients with an average myocardial infarction range of 8% ± 5%. The second group of patients with myocardial infarction range of 15% ± 4%.