| 刘建新,孙红霞,唐光健,蒋学祥.多层螺旋CT低剂量对比剂肺动脉成像[J].中国医学影像技术,2006,22(7):1012~1014 |
| 多层螺旋CT低剂量对比剂肺动脉成像 |
| Multi-slice spiral CT pulmonary artery angiography with low dose contrast medium |
| 投稿时间：2006-04-24 修订日期：2006-05-09 |
| DOI： |
| 中文关键词: 肺动脉 造影剂 体层摄影术,X线计算机 |
| 英文关键词:Pulmonary artery Contrast media, Tomography, X-ray computed |
| 基金项目: |
|
| 摘要点击次数: 2289 |
| 全文下载次数: 1274 |
| 中文摘要: |
| 目的 评价低剂量对比剂多层螺旋CT肺动脉造影(CTPA)的成像技术及图像质量。方法 应用多层螺旋CT对24名疑似肺栓塞的病人行CTPA检查,对比剂总量为20 ml(300 mgI/ml)。以单层动态增强扫描所测时间-密度曲线的峰值时间为扫描延迟时间,对比剂注射速率5.5 ml/s,数据采集时间2~3 s;另随机选择24例常规对比剂剂量(50 ml)CTPA检查影像作为对照组,影像质量按5级行盲法评价。结果 试验组5级图像占34％,4级37％,3级29％,未见1级、2级。对照组5级25％,4级34％,3级41％,未见1级、2级。结论 20 ml的对比剂可使患者肺动脉各级分支显影,并且达到诊断要求。 |
| 英文摘要: |
| Objective To evaluate the technology and image quality of multi-slice CT pulmonary artery angiography (MSCTPA) with low dose contrast medium. Methods 24 patients known to suspect of having pulmonary embolism underwent MSCTPA with 20 ml contrast medium. Scanning delay time was adjusted by using a test bolus. Contrast medium injection rate was 5.5 ml/s. The time of imaging data acquisition was 2-3 s. In addition 24 patients undergoing MSCTPA with 50 ml contrast medium were included in control group. Imaging quality was evaluated by five degree with blind method. Results Test team: the rate of each degree was 34%, 37%, 29%, 0, 0 from 5 to 1 degree. The rate of the contrast team was 25%, 34%, 41%, 0, 0 respectively. Conclusion Using 20 ml contrast could show the pulmonary artery and its branches, and could make the diagnosis of pulmonary embolism. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
