Lee D H, Larson T C, Norman D
Department of Diagnostic Radiology, University of Western Ontario, London.
Can Assoc Radiol J. 1988 Dec;39(4):260-2.
While falx calcification is rarely demonstrated using magnetic resonance, falx ossification, when seen, is characteristic. On magnetic resonance images, falx ossification exhibits a typical appearance consisting of a central marrow-containing portion with signal intensity similar to fat, surrounded by low signal intensity representing cortical bone. Falx ossification was seen in 0.7% of patients and should not be confused with a falx lipoma, a rare congenital entity.
虽然使用磁共振很少能显示大脑镰钙化，但大脑镰骨化一旦出现则具有特征性。在磁共振图像上，大脑镰骨化呈现出典型表现，由中央含骨髓部分组成，其信号强度类似于脂肪，周围是代表皮质骨的低信号强度。大脑镰骨化在0.7%的患者中可见，不应与大脑镰脂肪瘤（一种罕见的先天性病变）相混淆。
