目的研究64排螺旋CT曲面重组 (CPR)技术的检查方法在阑尾炎的临床诊 断价值及其局限性。方法 搜集我院2013 年7月-2018年2月外科手术确诊阑尾炎患 者资料共计235例，全部采用SIEMENS公司 SOMATOM Definition AS 64排螺旋CT行下 腹部平扫，后将其0.625mm薄层扫描轴位 源像(ASI)传到影像工作站进行图像后处 理，在盲肠下部沿阑尾开口行阑尾全程肠 腔曲面重建成像，作任意曲面以清晰显示 阑尾粪石梗阻部位、梗阻性质、梗阻远端 阑尾肠腔扩张及积液情况，对阑尾炎原因 进行定位和定性诊断，并与手术所见及术 后病理结果进行对比。结果 235例临床疑 似阑尾炎患者，术后病理证实单纯性阑尾 炎192例，化脓性阑尾炎43例；术前64排 螺旋CT曲面重组技术对阑尾炎的定位、 定性诊断准确率可达100%。结论 64排螺 旋CT曲面重组技术显著提高了对临床高度 可疑、临床症状不典型阑尾炎患者的术前 诊断能力，并可减少重症阑尾炎病例的发 生，对阑尾炎疾病的诊断有较高的临床应 用价值。

Objective To study the clinical application and limitation of curved planar reformation (CPR)technique of 64-row spiral CT in appendicitis. Methods To collect data of 235 patients with appendicitis diagnosed by surgery from July 2013 to February 2018 at the Fifth People's Hospital of Xuchang. All using SIEMENS SOMATOM Defense AS 64-row spiral CT to scan the lower abdomen. The 0.625mm thin layer scanning axial source image(ASI) is then transmitted to the image workstation for image post-processing, at the opening of the vermiform appendix in the lower cecum to reconstruct the enteric cavity all of the vermiform appendix, to make an arbitrary surface to clearly show the location of fecal-stone obstruction, the nature of obstruction, the distal appendix and the effusion, to identify and diagnose the cause of appendicitis, the results were compared with those of surgery and postoperative pathology. Results The 235 patients with suspected appendicitis, simple appendicitis in 192 cases and purulent appendicitis in 43 cases after the postoperative pathology confirmed. Curved planar reformation technique of 64-row spiral CT surface reconstruction technique can achieve 100% accuracy in the localization and qualitative diagnosis of appendicitis at preoperative. Conclusion The curved planar reformation technique of 64-row spiral CT can improve the preoperative diagnosis ability of patients with highly suspicious and atypical appendicitis, and reduce the occurrence of severe appendicitis for the diagnosis of appendicitis, and has high clinical value.