Diagnostic impact of diffusion weighted imaging in acute appendicitis

Authors : Ismail Caymaz, İnci Ece Hallaç, Ayşenur Buz Yaşar, Şükrü Mehmet Ertürk

Pages : 92-97

Doi:10.55665/troiamedj.1362559

View : 84 | Download : 79

Publication Date : 2024-09-30

Article Type : Research Paper

Abstract :Objective: This study reveals the impact of using diffusion-weighted imaging (DWI) to accurately diagnose acute appendicitis as an alternative to CT. Methods: In our study, 41 patients with suspected acute appendicitis, who had undergone magnetic resonance imaging (MRI) following sonographic (US) evaluation, and been referred to the radiology department during a period of 5 months were included. Two radiologists separately evaluated diffusion-weighted images. A five-range scoring system was used in the evaluation of diffusion MRI for each B-value. Any score that is 3 or higher is considered acute appendicitis. Statistical analysis was performed, and ROC curves were used for comparison. Results: In our study, 41 patients were examined. After the exclusion of 6 patients, out of the 35 patients (13 women, 22 men; mean age: 34, age range: 16 to 80) included in the study, 19 (46%) underwent surgery, and pathology results confirmed acute appendicitis. The results of all operated patients were consistent with the ultrasonography reports. However, ultrasonography had three false-positive results. Of these patients, two were identified by two observers and one by a single observer as not having appendicitis via DWI. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy rate for DWI were measured as 52-89%, 50-87.5%, 59-80%, 68-84%, and 65-80%, respectively. Conclusion: According to our study, with the advancement of technology, we believe that MRI usage in appendicitis will possibly increase, potentially surpassing CT, especially in selected cases due to the absence of radiation dose concerns.
Keywords : Appendisit, Akut batın, Manyetik Rezonans Görüntüleme