Evaluation of the Effects of Multiplane Reconstruction Technology with Multi-slice Spiral CT in the Etiological Diagnosis of Acute Intestinal Obstruction.

Objective: To analyze the effects of multiplane reconstruction (MPR) technology with multi-slice spiral CT (MSCT) in the etiological diagnosis of acute intestinal obstruction (AIO). Obtaining clear images is of great help in determining the type and etiology of AIO, and doctors can quickly develop treatment plans to improve prognosis and efficacy.

Methods: The clinical data of patients with suspected AIO admitted to our hospital from May 2020 to May 2022 were retrospectively selected as the observation objects. All patients underwent msct-mpr examination. Four imaging physicians were divided into two groups. One group underwent MSCT image evaluation for diagnosis, and the other group underwent msct-mpr image evaluation for examination. The diagnostic confidence scores of physicians for two imaging techniques were compared. Surgery and pathological enteroscopy were taken as the standard, and then patients were divided into the AIO group (n=75) and the suspected AIO group (n=5). The sensitivity, specificity, and coincidence rate of simple MSCT examination and msct-mpr examination in the diagnosis of AIO were detected by the four-grid table method, and the positive predictive values of msct-mpr in the diagnosis of AIO infarction location, etiology, type, and degree were evaluated.

Results: Among the 80 subjects in this experiment, the sensitivity and specificity of simple MSCT examination in the diagnosis of AIO were 90.67% and 60.00%, respectively, and the accuracy was 88.75%; the sensitivity and specificity of msct-mpr examination in the diagnosis of AIO were 93.33% and 80.00%, respectively, and the accuracy was 92.50%; there was no significant difference in the accuracy of the diagnosis of AIO between the two examination methods (P > .05). The diagnostic score levels of physicians in the MSCT-MPR group were significantly higher than those in the simple MSCT group (P < .05). Among the 75 patients diagnosed as AIO in this experiment, the incidence of ileum, jejunum, and sigmoid colon was higher. The positive predictive values of the ileum, jejunum, sigmoid colon, duodenum, cecal ascending colon, descending colon, transverse colon and rectum of AIO infarction sites diagnosed by msct-mpr were 86.36%, 80.00%, 87.50%, 85.71%, 85.71%, 85.71%, 60.00%, and 100.00%, respectively and the total positive predictive value of infarction site was 84.00%. Among the 75 patients diagnosed as AIO in this experiment, the positive predictive values of intestinal pathological lesions, extraintestinal lesions, and intestinal lesions of AIO infarction causes diagnosed by msct-mpr were 92.59%, 85.29% and 100.00%, respectively, and the total positive predictive value of infarction causes was 90.70%. The positive predictive values of msct-mpr in the diagnosis of complete AIO and incomplete AIO were 94.00% and 84.00%, respectively, and the total positive predictive value of infarction degree was 90.67%; the positive predictive values of msct-mpr in the diagnosis of simple AIO and strangulated AIO were 92.31% and 82.61% respectively, and the total positive predictive value of infarction type was 89.33%.

Conclusion: The accuracy difference between simple MSCT and MSCT mpr in AIO diagnosis is not significant, but MSCT mpr can improve the diagnostic information of readers. MPR can serve as an important supplement to MSCT in the diagnosis of AIO. MSCT-MPR has a high positive predictive value in determining the location, etiology, type, and degree of AIO, improving the diagnostic ability of disease etiology. MSCT-MPR helps doctors quickly assess the patient's condition and provides effective basis for formulating clinical treatment plans, which is worth promoting and applying.