GIÁ TRỊ CỘNG HƯỞNG TỪ VIÊM XƯƠNG TỦY XƯƠNG CẤP TÍNH Ở TRẺ EM

Abstract

Objective: To evaluate the diagnostic value of Magnetic Resonance Imaging (MRI), including both contrast-enhanced and non-contrast scans in the detection of acute osteomyelitis in pediatric patients. Subjects and methods: 123 pediatric patients with clinically suspected acute osteomyelitis, underwent magnetic resonance imaging and had results confirmed by surgery or biopsy at the National Children's Hospital. Results: Contrast-enhanced MRI demonstrated the highest sensitivity (94.57%) in diagnosing osteomyelitis, compared to non-contrast MRI (91.3%). It was also superior in detecting abscesses (92 cases detected versus 76 on non-contrast), particularly through the characteristic “rim enhancement” sign. Among the imaging sequences, STIR and T1W showed high sensitivity (91.3% and 88.04%, respectively), while T2W had a lower sensitivity (77.17%) but the highest specificity (80.65%). Conclusions: MRI is a valuable imaging modality for diagnosing osteomyelitis in children, particularly when contrast is administered. STIR and T1W sequences offer high sensitivity, while T2W contributes to increased specificity. The combination of multiple sequences and contrast enhancement improves diagnostic accuracy and aids in the identification of complications such as abscess formation.