| 高红,徐文坚,李绍科,郝大鹏.64层螺旋CT主动脉成像技术的临床应用[J].中国医学影像技术,2007,23(1):77~80 |
| 64层螺旋CT主动脉成像技术的临床应用 |
| Application of aortic angiography with 64-slice spiral CT |
| 投稿时间：2006-09-05 修订日期：2006-12-26 |
| DOI： |
| 中文关键词: 体层摄影术,X线计算机 血管造影术 主动脉疾病 |
| 英文关键词:Tomography, X-ray computed Angiography Aortic diseases |
| 基金项目: |
|
| 摘要点击次数: 2384 |
| 全文下载次数: 1289 |
| 中文摘要: |
| 目的 探讨团注追踪法64层螺旋CT增强扫描技术在主动脉成像中的应用价值。方法 对39例拟诊为主动脉病变的患者采用团注追踪法CT增强扫描。以3.5~4 ml/s速率分别注射100 ml非离子型对比剂和40~50 ml生理盐水。计算夹层组和非夹层组主动脉平均强化值的均数和标准差,并进行统计学比较。将两组的图像质量按优、良、差和失败进行分级并行比较。结果 非夹层组与夹层组真腔的主动脉平均强化值比较,差异在统计学上无显著性意义(P>0.05);与夹层组假腔的主动脉平均强化值比较,差异有显著性意义(P=0.01)。夹层组真、假腔主动脉平均强化值比较,差异有显著性意义(P=0.01)。两组图像质量比较,差异在统计学上无显著性意义(P>0.05)。结论 64层螺旋CT团注追踪法主动脉成像能够满足临床诊断主动脉疾病的需要,扫描延迟时间的选择、监测平面的设定以及后续生理盐水的使用,是主动脉CTA检查成功的重要因素。 |
| 英文摘要: |
| Objective To investigate the value of 64-slice spiral CT with bolus tracking in aortic angiography. Methods Thirty-nine patients with suspect aortic diseases were evaluated with Siemens 64-slice CT scanner. All of scans were performed with the bolus tracking of 100 ml nonionic contrast material followed by flushing 40-50 ml of physiologic saline solution at 3.5-4 ml/s. Average value of aorta enhancement and its standard deviation over baseline were calculated for both group, with dissection and non-dissection. The imaging qualities in both groups were graded as excellent, good, poor and failure and were compared respectively. Results The mean value of aorta enhancement for non-dissection group was not significantly different from that in true channel of dissection group (P>0.05), but significantly different from that in false channel of dissection group (P=0.01) . In dissection group, the mean value of aorta enhancement in true channel differed significantly from that of false channel (P=0.01). The imaging quality of both groups was not significant different (P>0.05). Conclusion 64-slice CT angiography with bolus tracking can well display the aortic diseases. It is important to select the proper delay time, tracking planner and solution for aortic angiography. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
