64排CT冠脉序列扩大增强扫描诊断大血管疾病的临床价值

目的:运用64排螺旋CT冠脉序列扩大增强扫描结合回顾性心电门控技术研究在诊断大血管疾病方面的临床价值。方法:选择31例临床怀疑主动脉疾病患者,全部行64排螺旋CT平扫及冠脉序列扩大增强扫描加后续重建,观察主动脉夹层包括范围、破口位置、内膜病变,主动脉瘤及有无合并其他先天性疾病等,总结和归纳病灶的影像学表象及特征。结果:大血管疾病(如主动脉粥样硬化、主动脉夹层及并发的相关疾病、主动脉瘤及先天性疾病等)的影像表现在图像上显示清楚,能够确切显示微小病变结构,克服了搏动伪影等多种干扰因素。结论:运用64排螺旋CT冠脉序列扩大增强扫描结合回顾性心电门控技术可以在很大程度上克服大血管的搏动伪影,清晰显示血管壁、管腔以及病变波及的范围等,从而作出精准的诊断,对临床抢救及治疗发挥重要作用。

Clinical Value of Application of 64-slice Spiral CT Coronary Artery Sequence Contrast-enhanced Scan Techniques on the Diagnosis of Macrovascular Diseases

Objective:Aims at discussing the clinical value of the application of 64-slice spiral CT coronary artery sequence contrast-enhanced scan with retrospective ECG-gating technique on the diagnosis of macro vascular diseases.Methods:31 cases of clinically suspected patients with aor tic diseases were selected to conduct 64-slice spiral CT scan and coronary artery sequence con trast-enhanced scan plus follow-up reconstruction.By observing aortic dissection(including range,site of crevasse and intima lesion),aortic aneurysms and whether complicated with other congenital diseases,imaging characteristics of the lesion were concluded.Results:The imaging manifestations of macro vascular diseases(such as aortic atherosclerosis,aortic dissection and complications,aor tic aneurysms,congenital diseases,etc.)were shown clearly on the graphs,and minimal lesions can be shown accurately,reducing interfering factors like motion artifacts.Conclusion:The applica tion of 64-slice spiral CT coronary artery sequence contrast-enhanced scan with retrospective ECG-gating technique can considerably reduce motion artifacts of great vessels and distinctly show vessel wall,lumen and range of lesions,thus making an accurate diagnosis,which is important to clinical rescue and treatment.