探讨多排螺旋 CT 扫描与多平面重建技术在阑尾炎诊断中的价值

Objective To investigate the diagnostic value of multi-slice spiral CT scanning combined with multi-planar reconstruction (MPR) technique and analyze its effectiveness in the diagnosis of appendicitis. Methods Clinical data of 40 patients with suspected appendicitis admitted to the Second Affiliated Hospital of Guizhou Medical University from January 2023 to December 2023 were collected. All patients underwent multi-slice spiral CT scanning and MPR technique for diagnosis. Taking pathological diagnosis as the gold standard, the implementation effects of the above diagnostic protocol were analyzed, including diagnostic coincidence rate, imaging manifestations and diagnostic value. Results The diagnostic results of multi-slice spiral CT scanning combined with MPR technique showed little difference from pathological diagnosis, with a high coincidence rate, and the comparative analysis showed no statistical significance (P＞0.05). Analysis of imaging data revealed the following characteristics: obvious enlargement of the appendix accompanied by appendiceal calculi, thickening of the ileocecal wall, enlargement of mesenteric lymph nodes, and more importantly, pathological changes of perforation with abscess formation around the appendix. The proportions were as follows: appendiceal enlargement (82.50%), appendiceal calculi (70.00%), multiple mesenteric lymph nodes (62.50%), ileocecal wall thickening (40.00%), and periappendiceal abscess with perforation (2.5%). Diagnostic value analysis showed that multi-slice spiral CT scanning combined with MPR technique had high specificity, sensitivity, negative predictive value, positive predictive value, and accuracy, which were 85.71% (6/7), 93.94% (31/33), 75.00% (6/8), 96.88% (31/32), and 92.50% (37/40), respectively. Conclusion The combined diagnosis of multi-slice spiral CT scanning and MPR technique has high application value, with high accuracy,negative predictive value, specificity, sensitivity, and positive predictive value, and a high coincidence rate with the gold standard diagnosis, which can provide scientific guidance for subsequent treatment.