Purpose: to study imaging features of avascular necrosis of the femoral head and to evaluate the value of X-ray and CT in diagnosis and staging of ANFH.
目的：研究股骨头缺血性坏死(ANFH)的影像学表现、分期，并评价其在诊断和分期中的价值。
2
Methods After the study of functional anatomy of wrist joint and intra-lunate micro-structure and wrist X-ray, we put forward the factors contributing to lunate avascular necrosis.
方法通过对腕关节机能解剖、月骨内微组织结构及腕关节X线影像学的研究，阐明月骨无菌性坏死的致病因素。
3
Liquefaction necrosis of the central part of lung cancer formation, when empty, X-ray signs easily confused with lung abscess.