MSCT低剂量扫描在膀胱病变中的应用  

The Application of Low Dose MSCT Scan of Bladder Diseases

作　　者：陈耀华[1] 邱国庆[1] 丁爱民[1] 裴宇文 邓冬琴 

机构地区：[1]江西省抚州市第一人民医院影像科,江西抚州344000

出　　处：《实用放射学杂志》2011年第4期617-619,共3页Journal of Practical Radiology

摘　　要：目的 探讨膀胱充气造影MSCT低剂量扫描对图像质量的影响.方法 对60例临床考虑膀胱病变患者,在膀胱充气状态下行120 mAs和40 mAs 2种剂量的螺旋CT扫描,然后由2名主治医师在不了解扫描、重建参数的情况下分别独立阅片,并对2种图像质量进行评价.结果 常规剂量120 mAs扫描与低剂量40 mAs扫描对膀胱病变、膀胱壁、膀胱黏膜及腔外间隙的显示影响很小,也不影响对病变的观察和诊断.结论 膀胱充气造影低剂量40 mAs螺旋CT扫描虽然图像噪声增加,但对其病变的显示和诊断没有明显影响,可适用于临床的筛查和诊断.Objective To explore the influence of low dose MSCT scan with pneumo graphy of the bladder on the image quality. Methods 60 patients with bladder diseases were divided into two groups, one group accepted 120 mAs dose spiral CT scan with pneumography, and 40 mAs dose scan was applied to the other group, then two attending physicians independently read the films and evaluated on the quality of two type of images without understanding the scanning and reconstruction parameters. Results Regu- lar scanning of 120 mAs and low dose scanning of 40 mAs both had little influence on the visualization of bladder disease, bladder wall,bladder mucous membrane and the gap of extra-cavity, and had on influence on observation and diagnosis. Conclusion Al- though low dose 40 mAs spiral CT scan with pneumography increases the image noise, but has little influence on visualization of dis- eases and diagnosis, therefore low dose scan to bladder disease can apply to clinical screening and diagnosis.

关 键 词：膀胱 放射剂量 体层摄影术 X线计算机 

分 类 号：R649[医药卫生—外科学] R814.42[医药卫生—临床医学]