?影像技术学

    数字化体层摄影在老年 IVP中的应用价值

    吴南洲 ,陈 波 ,惠 萍

    (解放军总医院放射诊断科 ,北京 100853)

    [摘 要] 目的 探讨数字化体层摄影在老年静脉肾盂造影应用中的价值。方法 应用直线轨迹 8° / 0. 4s和数字化体层

    自动曝光三点技术:kV、 mAs、 ms ,在透视检查后决定曝光条件即时抓摄泌尿系统的体层影像。结果 26 例老年病人造影检

    查中 ,有19例腹部准备不充分 ,通过体层摄影全部消除了重叠伪影的干扰 ,使肾脏正常组织和病变得到清晰的显示 ,肾脏无

    明显异常征象20例 ,肾结石3例 ,肾积水1例 ,肾盂癌1例 ,肾钙化1例。诊断符合率达100 % ,曝光剂量降低了83. 75 %。结

    论 数字化体层摄影对提高老年 IVP检查的诊断符合率和射线防护具有很高的价值 ,应该作为常规运用。

    [关键词] 数字化体层摄影; 老年静脉肾盂造影; 肾盂造影照片

    [中图分类号] R814 ; R692. 17 [文献标识码] A [文章编号] 100323289 (2003) 0620757202

    [作者简介] 吴南洲(1965 - ) ,男,湖北人,本科,主管技师。

    [收稿日期] 2003202215

    Application Value of Digitized Tomography in the Intravenous Pyelography for the Aged

    WU Nan2 zhou , CHEN Bo , HUI Ping

    ( Department of Radiology , Chinese PLA General Hospital , Beijng 100853 , China)

    [ Abstract] Objective To study the application value of digitized tomography in the intravenous pyelography for the aged. Methods

    Linear digitized tomography : 8°and 0. 4s was selected and three 2point mode with automatic exposure control was applied to take an X 2ray

    pyelogram immediately after performing a fluoroscopic exam. Results In 26 cases , the tissue and the intestines gas which overlap the kid 2

    neys about 19 cases were completely removed by the digitized tomography , the high resolution tomograms of the kidneys were acquired , 20

    cases were normal , 3 cases had renal stone , 1 case had carcinoma of renal pelvis , 1 case was hydronephrosis , 1 case was renal cacifica 2

    tion. The average X 2ray exposure dose reduced from 80mAs to 13mAs. Conclusion The diagnostic accuracy of the X 2ray pyelogram could

    be improved and X 2ray exposure dose could be reduced by utilizing the digitized tomography and it should be used as routine technique in

    IVP.

    [ Key words] Digitized tomography ; Intravenous pyelography for the aged ; Pyelogram

    IVP是 X线下传统的一种特殊造影

    检查方法,对肾积水、肾结石、肾肿瘤的

    显示具有极高的价值,直至目前,它仍是

    尿路疾病检查中的一种首选方式。老年

    患者因生理功能减退,肠蠕动慢,造影前

    的准备如肠道清洁,65 %以上都不能达

    到理想的效果,肠内容物和气体形成重

    叠的影像,严重影响了疾病的诊断,既让

    病人承担了经济费用,又不能获得理想

    的造影效果 ......