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随着 CT 普及,受检人群不断增加。CT 扫描中正常解剖变异和假象常可遇见,不认识它,有时给诊断与解释造成困难,甚至误为病变。本文结合我们70000余例的临床实践经验,对常见变异作一简要的介绍。1.颅骨 CT 扫描中常见的正常变异1.1 颅骨变异与伪影造成的正常变异1.1.1 颅骨骨增生:额、顶骨对称性不规则内板增生,沿中线和冠状缝分布,外板保持正常厚度,为常见变异,这种
With the popularization of CT, the number of people under test continues to increase. Normal anatomical variations and artifacts in CT scan can often be encountered, do not recognize it, and sometimes cause difficulties in diagnosis and interpretation, and even mistaken for the lesion. This article combines our experience of more than 70,000 cases of clinical practice, a brief introduction to common variations. 1. Common skull CT scan of the normal variation 1.1 Skull variation and artifacts caused by the normal variation of 1.1.1 skull bone hyperplasia: forehead, parietal symmetry irregular inner plate proliferation along the midline and coronal distribution, the outer plate to maintain normal thickness , For the common variation, this