CAJ | 학술논문

目的：应用低剂量CT探讨小儿急性阑尾炎的影像诊断价值。对象与方法2009年8月至2013年11月经低剂量CT扫描诊断为急性阑尾炎18例患儿，年龄1-13(6.48±4.00)岁；手术病理证实16例，保守治疗2例。结果 CT扫描参数：120KV，76-150(106.75±15.36) mA，CT辐射剂量指数(Computed tomography dose index，CTDI)为4.8-8.8(6.72±1.01)mGy；直接征象：阑尾增粗、肿大；继发征象：回盲区见粪石，周围结构显示不清，脂肪间隙昏暗，腹膜增厚，腹、盆腔积液；回盲区脓肿；邻近肠管壁增厚、肠腔扩张、积液；邻近淋巴结增大；腹腔积气伴门静脉积气。结论低剂量多层螺旋CT扫描不仅能很好显示小儿阑尾病变，而且能提示阑尾周围的脂肪密度、邻近肠管、腹膜、淋巴结、腹腔积液及游离气体等相关的间接征象。
목적：응용저제량CT탐토소인급성란미염적영상진단개치。대상여방법2009년8월지2013년11월경저제량CT소묘진단위급성란미염18례환인，년령1-13(6.48±4.00)세；수술병리증실16례，보수치료2례。결과 CT소묘삼수：120KV，76-150(106.75±15.36) mA，CT복사제량지수(Computed tomography dose index，CTDI)위4.8-8.8(6.72±1.01)mGy；직접정상：란미증조、종대；계발정상：회맹구견분석，주위결구현시불청，지방간극혼암，복막증후，복、분강적액；회맹구농종；린근장관벽증후、장강확장、적액；린근림파결증대；복강적기반문정맥적기。결론저제량다층라선CT소묘불부능흔호현시소인란미병변，이차능제시란미주위적지방밀도、린근장관、복막、림파결、복강적액급유리기체등상관적간접정상。
Objective To explore value of the low-dose CT in diagnosing acute appendicitis for children. Methods From August 2009 to November 2013,18 children were diagnosed as acute appendicitis, The mean age was 6.48±4.00 years old (rang 1-13 years old), 16 children with pathology confirmed, and 2 children with conservative treatment. Results The CT scan parameters: 120KV, 76-150(106.75±15.36)mA;CTDI: 4.8-8.8(6.72±1.01)mGy. Direct sign: thickened appendiceal diameter, thickened appendiceal wall, and distended appendiceal luminal diameter. Indirect signs: presence of periappendiceal inflammatory changes (fat stranding, fluid collection, phlegmon), abscess formation, adjacent bowel wall thickening, adjacent adenopathy, and extraluminal air. Conclusion The characteristics of acute appendicitis can be clearly shown by Low-dose CT. It does not only indicate the thickened appendiceal diameter, thickened appendiceal wall, and distended appendiceal luminal diameter but also the present indirect sign, including The inflammatory changes of appendix around, abscess formation, adjacent bowel wall thickening, adjacent adenopathy, and extraluminal air.