Evaluation of CCTA Combined with Rest Myocardial Perfusion after PCI
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摘要:
目的 分析冠状动脉CT成像(CCTA)联合静息CT心肌灌注(CT-MPI)对于PCI术后患者诊断价值。 方法 选取在昆明医科大学第一附属医院行PCI治疗的患者22例,行CCTA检查、静息心肌灌注检查,评估CCTA联合静息CTMP对PCI术后患者心肌缺血情况的评估。 结果 CCTA提示25个支架内有4个支架内出现再狭窄,联合检查出10例心肌灌注异常,12例无心肌灌注异常,和心脏超声检查结果相同;CTMPI和联合检查的准确性较高,为90%、100%,联合检查比单纯的CCTA检查更能提高患者心肌缺血的检出,同时还可以评估支架内是否出现再狭窄情况。 结论 CCTA联合静息CTMPI对于PCI术后心肌缺血情况的诊断效能更高,可在了解支架通畅情况的同时得到心肌血流灌注的情况,提高了PCI术后患者的诊断价值。 -
关键词:
- 心肌灌注 /
- 冠状动脉CT血管成像 /
- PCI
Abstract:Objective To analyze the diagnostic value of Coronary Computed tomography angiography (CCTA)combined with rest CT myocardial perfusion (CT-MPI) in patients after percutaneous coronary intervention (PCI). Methods Twenty-two patients after PCI were selected to receive CCTA combined with resting PCT to evaluate the patency and myocardial perfusion to evaluate the effect of CCTA combined with resting CTMP on myocardial ischemia after PCI. Results CCTA showed restenosis in 4 of 25 stents, combined examination showed that 10 cases had abnormal myocardial perfusion and 12 cases had no abnormal myocardial perfusion, the same as that of echocardiography; the accuracy of CTMPI and combined examination was 90% and 100%, combined examination can improve the detection of myocardial ischemia and evaluate the stenosis in the stent. Conclusion CCTA combined with CTMPI is more effective in the diagnosis of mysocardial ischemia after PCI. We can get the data of stent and myocardial perfusion, which improves the diagnostic value of patients after PCI. -
表 1 PCI检出情况
Table 1. Detection of PCI in patients
项目 数量(%) 支架位置 LAD:20/31(64.5) LCX:7/31(22.5) RCA:4/31(12.9) 支架数量(个) 31 支架通畅(例) 27(87.1) 支架内狭窄(例) 4(12.9) 表 2 PCI术后患者心脏超声提示心肌运动异常情况
Table 2. Abnormal myocardial motion revealed by echocardiography after PCI
位置 n n/节段(%) 室间隔 8 8/14(53.8) 左心室前壁 5 5/5(19.2) 游离壁 6 6/7(26.9) 表 3 各项检查的诊断结果(n)
Table 3. The diagnosis results of various examinations(n)
心肌缺血 CCTA 静息CTMPI 联合检查 合计 阳性 阴性 阳性 阴性 阳性 阴性 阳性 4 6 9 1 10 0 10 阴性 0 12 0 12 0 12 12 合计 4 18 9 13 10 12 22 表 4 不同检查方法与心脏超声诊断的对照[n(%)]
Table 4. Comparison of different examination methods with echocardiography[n(%)]
题目 名称 心脏超声检查 总计(n) χ2 P 阴性 阳性 CCTA 阴性 12(66.67) 6(33.33) 18 5.867 0.015* 阳性 0(0.00) 4(100.00) 4 CTMP 阴性 11(91.67) 1(8.33) 12 14.673 0.000** 阳性 1(10.00) 9(90.00) 10 联合 阴性 12(100.00) 0(0.00) 12 22 0.000** 阳性 0(0.00) 10(100.00) 10 总计 11 10 22 *P < 0.05,**P < 0.01。 -
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