GIÁ TRỊ CỦA CHỤP CỘNG HƯỞNG TỪ SỬ DỤNG XUNG HASTE DWI TRONG CHẨN ĐOÁN CHOLESTEATOMA

Abstract

Objective: To evaluate the diagnostic value of brain MRI using T2W TSE and HASTE DWI sequences in detecting middle ear cholesteatoma at the University Medical Center, Ho Chi Minh City. Materials and Methods: A prospective descriptive study was conducted on 24 patients with clinical suspicion of cholesteatoma. All patients underwent MRI using T2W and DWI HASTE sequences before surgery. MRI results were compared with postoperative histopathological findings. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and p-value were calculated. Results: Of the 24 patients, MRI detected 21 positive and 3 negative cases. Histopathology confirmed 20 true positives, 1 false positive, 1 false negative, and 2 true negatives. Sensitivity was 95.2%, specificity 66.7%, PPV 95.2%, NPV 66.7%, with a statistically significant p-value (0.0086). Notably, all 8 cases of suspected recurrence were correctly identified by MRI. Conclusion: Brain MRI using T2W and DWI HASTE sequences demonstrates high sensitivity and PPV in detecting cholesteatoma. However, specificity and NPV remain limited due to small sample size and few negative cases. Further studies with larger, balanced samples are recommended for a more accurate assessment of MRI's diagnostic value.