摘要
目的探讨多层螺旋CT(multi-slice spiral CT,MSCT)多平面重建(multi-planar reconstruction,MPR)及曲面重建(curved planar reformation,CPR)诊断急性阑尾炎的价值。方法 88例拟诊急性阑尾炎患者,术前均行MSCT检查并进行MPR、CPR后处理,比较未重建及重建后CT征象显示率;与手术组织病理结果进行对照,比较未重建及重建图像诊断急性阑尾炎的灵敏度、特异度。结果重建图像阑尾外径增粗(90.91%)、阑尾管壁增厚(73.86%)、阑尾周围渗出改变(90.91%)、阑尾积液(39.77%)、阑尾结石(62.50%)、阑尾穿孔(28.41%)、回盲部肠壁增厚(88.63%)显示率及阑尾异常总显示率(98.86%)均高于未重建图像(68.18%、50.00%、73.86%、25.00%、44.32%、13.63%、73.86%、90.91%)(P<0.05);手术组织病理诊断急性阑尾炎82例,重建图像诊断急性阑尾炎的灵敏度(97.6%)和特异度(83.3%)均高于未重建图像(64.6%、50.0%)(P<0.05)。结论 MSCT扫描后进行MPR及CPR重建,可直观显示阑尾及其周围结构和病理变化,提高急性阑尾炎的诊断灵敏度和特异度。
Objective To explore the value of multi-planar reconstruction （MPR） and curved planar reformation （CPR） of multi-slice spiral CT （MSCT） to the diagnosis of acute appendicitis. Methods Eighty-eight patients with suspected acute appendicitis received MSCT scan before operation and were post-processed by MPR and CPR to compare the display rates of CT signs before and after reconstruction. The sensitivity and specificity of reconstructed and unreconstructed signs for acute appendicitis were compared with surgical histopathological results. Results The display rates of reconstructed images of enlarged appendix diameter （90.91%）, thickened appendix wall （73.86 %）, exudation around appendix （90.91%）, appendix hydrops （39. 77%）, appendix stones （62. 50%）, appendix perforation （28. 41%） and thickened bowel wall at ileocecal junction （88.63%）, and the total display rate of abnormal appendix （98.86%） were significantly higher than those of unreconstructed images （68.18%, 50.00%, 73.86%, 25.00%, 44. 32%, 13.63%, 73.86%, 90. 91%） （P〈0.05）. Surgical histopathological results confirmed acute appendicitis in 82 patients. The sensitivity and specificity of reconstructed images （97. 6%, 83. 3%） were significantly higher than those of unreconstructed images （64.6%, 50. 0%） （P〈0.05）. Conclusion MPR and CPR after MSCT scanning can display appendix and its surrounding structure as well as the pathological changes to improve the sensitivity and specificity for acute appendicitis.
出处
《中华实用诊断与治疗杂志》
2016年第3期296-298,共3页
Journal of Chinese Practical Diagnosis and Therapy
关键词
急性阑尾炎
多层螺旋CT
多平面重建
曲面重建
Acute appendicitis
multi-slice spiral CT
multi-planar reconstruction
curved planar reformation
