NGHIÊN CỨU ĐẶC ĐIỂM HÌNH ẢNH TỔN THƯƠNG TRÊN PHIM XQUANG - CỘNG HƯỞNG TỪ Ở BỆNH NHÂN HOẠI TỬ VÔ KHUẨN CHỎM XƯƠNG ĐÙI

Abstract

Avascular necrosis (AVN) of the femoral head  is a common cause of musculoskeletal defects, posing a major challenge in diagnosis and treatment. Magnetic resonance imaging technique is a new, modern technique capable of diagnosing diseases with a higher sensitivity and specificity than other methods. The study was conducted based on the diagnostic results of X-ray images and magnetic resonance images (MRI) of 60 subjects. Our results indicated that the age group 31-59 with AVN of the femoral head accounts for the largest proportion of 70.0% and the proportion of male patients with high prevalence is 86.67%. The rate of detection of avascular femoral AVN on X-ray film was only 65.45% of patients diagnosed with avascular femoral capillary necrosis. There is 76.67% of injuries on both sides of femoral head. The image of bone density with bone defects 83.33%, the femur fractures 69.44% and the image of bone density 27.77% were observed on X-ray film. The image of T2-Pd bone marrow edema with 66.98% and hip effusion accounted for 68.86% of femoral head, collapsed femur accounted for 59.43%, and subar cartilage fracture accounted for 52.83% was observed on MRI film. The early stage showed that the image of the signal reduction band on T1 accounted for 81.81%, the image of bone edema on pulse T2-Pd accounted for 77.27%, the double-line image on T2-Pd and the image of hip effusion accounted for 72.72%. The later stage showed that the defect images accounted for 75.0%, bone marrow edema and hip hydroceles 67.85% and 64.28%.