CAJ | 학술논문

目的：探讨实时三维超声(RT-3DE)技术在评价冠心病患者经皮冠状动脉介入术(PCI)前后局部室壁运动中的临床意义。方法选取临床诊断冠心病及可疑冠心病拟行冠状动脉造影示前降支为“罪犯血管”的患者为冠心病组(30例),对照组为30例正常人。应用RT-3DE测量左室心肌局部容积曲线和局部射血分数(rEF),比较两组的9个节段的rEF及冠心病患者接受PCI手术前、术后3天、术后1个月、术后6个月的局部射血分数。结果与对照组相比,冠心病组PCI术前缺血区域相应节段的rEF明显降低(P<0．05)。与PCI术前相比,冠心病组患者术后1个月开始部分节段rEF增大(P<0．05),6个月增加最明显(P<0．05),术后3天rEF无明显变化。结论 RT-3DE可准确识别缺血心肌节段,动态观察PCI术前、术后局部心肌功能的变化,判断术后疗效。
목적：탐토실시삼유초성(RT-3DE)기술재평개관심병환자경피관상동맥개입술(PCI)전후국부실벽운동중적림상의의。방법선취림상진단관심병급가의관심병의행관상동맥조영시전강지위“죄범혈관”적환자위관심병조(30례),대조조위30례정상인。응용RT-3DE측량좌실심기국부용적곡선화국부사혈분수(rEF),비교량조적9개절단적rEF급관심병환자접수PCI수술전、술후3천、술후1개월、술후6개월적국부사혈분수。결과여대조조상비,관심병조PCI술전결혈구역상응절단적rEF명현강저(P<0．05)。여PCI술전상비,관심병조환자술후1개월개시부분절단rEF증대(P<0．05),6개월증가최명현(P<0．05),술후3천rEF무명현변화。결론 RT-3DE가준학식별결혈심기절단,동태관찰PCI술전、술후국부심기공능적변화,판단술후료효。
Objective To investigate the application of real-time three-dimensional echocardiography (RT-3DE) to estimate myocar-dial regional wall motion in coronary artery disease before and after percutaneous coronary intervention( PCI) . Methods The study consisted of 30 normal subjects and 30 patients with coronary artery disease. Patients included in the study were those with left anterior descending coro-nary artery( LAD) to be “criminal vessel”. Three dimensional image data were acquired and regional volume curves and regional ejection fractions ( rEF) in control and patient group ( before PCI surgery, three days, one month and six months after surgery) were derived. Region-al ejection fractions at each follow-up period in the patient group were measured. Results Before PCI surgery, the rEFs of ischemic myocar-dium were obviously lower than those in the normal group (P<0. 05). The rEFs increased gradually in most segments on one and six months after PCI surgery. Conclusion RT-3DE can accurately differentiate abnormal perfusion segments from normal ones.