【摘要】 目的 探讨多层螺旋CT低剂量扫描在小儿上尿路梗阻性疾病中的应用价值。 方法 2008年1月-2009年6月经临床手术证实尿路梗阻的患儿52例，按梗阻的原因分为结石组13例与非结石组39例。将非结石组患儿，按照年龄分为0~1岁（8例）、1~5岁（16例）和5~10岁（15例）3个组，均采用个性化的低剂量扫描方式。 结果 结石组与非结石组阳性诊断率均为100%。低剂量扫描患儿所接受的辐射剂量明显降低，CT扫描管电流不变，管电压降低1/3，CT检查的辐射剂量可降低约70%，且均可达到临床诊断要求。 结论 多层螺旋CT低剂量个性化扫描在小儿上尿路梗阻性疾病中诊断中具有明显优势。
【Abstract】 Objective To evaluate low-dose multislice spiral CT for upper urinary tract obstruction in children. Methods From January 2008 to June 2009, 52 children with upper urinary tract obstruction were diagnosed via clinical surgeries. The patients were divided into two groups according to whether having renal calculus (13 patients) or not (39 patients). The patients in non-calculus group were divided into three sub-groups: aged 0-1 (eight patients), 1-5 (16 patients), and 5-10 (15 patients). Low dose multislice spiral CT with different doses was performed. Results The rate of positive predictive diagnosis was 100% in both calculus and non-calculus group. Low dose scan reduced the radiation dose of children. The fixed tube current and the decreased tube voltage (decreased 1/3) led to the decrease of the radiation dose (decreased 70%), which were feasible for diagnosis. Conclusion Low-dose multislice spiral CT was available for upper urinary tract obstruction in children.
Citation：
SHUAI Tao,LI Zhenlin,DENG Liping,YUAN Yuan,YANG Qin. Low-dose Multislice Spiral CT for Upper Urinary Tract Obstruction in Children. West China Medical Journal, 2010, 25(12): 2199-2202. doi:
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Copyright © the editorial department of West China Medical Journal of West China Medical Publisher. All rights reserved
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- 1. 王志群, 李坤成, 王亮, 等. 64层容积CT尿路造影对输尿管梗阻性病变的诊断价值[J]. 放射学实践, 2007, 22(8): 836-839.
- 2. 杨晓霞, 李健丁, 乔瑛, 等. 低剂量CTU对上尿路梗阻性疾病的诊断价值[J]. 临床医药实践杂志, 2007, 11(16): 1048-1050.
- 3. Stovis TL. The ALARA concept in pediatric CT: myth or reality[J]. Radiology, 2002, 223(1): 5-6.
- 4. 徐小普, 孔秋雁. 多层螺旋CT扫描降低仟伏值对婴幼儿胸部图像质量的影响[J]. 放射学实践, 2008, 23(12): 1373-1375.
- 5. Cody DD, Moxley DM, Krugh KT, et al. Strategies for formulating appropriate MDCT techniques when imaging the chest, abdomen, and pelvis in pediatric patients[J]. AJR, 2004, 182(4): 849-859.
- 6. 程姚儿, 贺文, 何青, 等. 螺旋CT尿路造影对输尿管病变的诊断价值[J]. 中国医学影像技术, 2005, 21(10): 1565-1568.
- 7. Caoili EM, Cohan RH, Inampudi P, et al. MDCT urography of upper tract urothelial neoplasms[J], AJR, 2005, 184(6): 1873-1881.
- 8. 王礼同, 李澄, 袁红梅, 等. MSCT曲面重组尿路成像与MRU对泌尿系病变的诊断比较[J]. 放射学实践, 2008, 23(9): 1030-1034.
- 9. 张晓凡, 张毅, 蔡静怡. CTU术前诊断及术后疗效观察小儿先天性肾盂输尿管连接部梗阻的临床价值[J]. 2003, 11(1), 6-9.
- 10. 朱晓华, 李士骏, 薛永明, 等. 胸部CT低剂量扫描的图像质量与吸收剂量关系分析[J]. 中华放射学杂志, 2003, 37(10): 945-950.
