SO SÁNH ĐỘ NHẠY CHUỖI XUNG CỘNG HƯỞNG TỪ PROTON DENSITY (PDWI) VÀ FAT SUPPRESSED PROTON DENSITY (PDWI FS) TRONG PHÁT HIỆN RÁCH SỤN CHÊM KHỚP GỐI

Abstract

Background: The PDWI sequence is important detecting meniscus tears and other lesions in the knee joint. This sequence is usually combined with fat sat to increase the likelihood of detecting damage, so the role of routine PDWI is gradually replaced. Objective: To compare the diagnostic sensitivity of PDWI and PDWI fat sat sequence in the knee meniscus tear survey, using knee arthroscopy as the reference standard. Materials and method: Recorded the results of knee arthroscopy of all patients with previous MRI scans within 1 week at Hoan My Saigon Hospital. The double-blind evaluation conducted by the same experienced doctor in 2 months apart. There MRI results were compared with knee arthroscopy results, from which the sensitivity of each sequences sequence in the meniscus survey was calculated. Results: 64 patients were selected from 01/2020 to 08/2022. The imaging group with the appearance of the sagittal PDWI fat sat sequence had a higher sensitivity and specificity (93.0% and 92.2%) than the image group with the appearance of the sagittal PDWI sequence (79.1% and 87.1%). Conclusion: Diagnostic performance of PDWI fat sat sequence is better than the routine PDWI sequence in the evaluation of knee meniscus tear.