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目的：探讨螺旋ＣＴ血管造影及三维图像重建（３Ｄ－ＳＣＴＡ）在颅内和头颈部病变诊断中的价值。材料和方法：９８例头颈部病变患者接受了３Ｄ－ＳＣＴＡ检查，其中包括颅内动脉瘤３２例，颅内ＡＶＭ ５例，颈动脉粥样硬化３５例，脑膜瘤１１例，硬膜型海绵状血管瘤２例，颅底神经纤维瘤３例，颈部肿块６例，颈椎椎管内神经纤维瘤４例。结果：全部患者顺利经受螺旋ＣＴ血管造影检查，３５例颈动脉粥样硬化均显示清楚，且能够检出附壁钙化性动脉粥样硬化斑块，对颈动脉粥样硬化程度的诊断有较高的准确性。３２例颅内动脉瘤中３０例获清晰显示，动脉瘤的瘤体大小、瘤颈情况、瘤轴的指向、载瘤动脉以及动脉瘤与颅区骨性组织的空间关系和动脉瘤与相邻血管分支的关系均能获得较满意的显示。１６例颅内肿瘤（包括１１例脑膜瘤，３例颅底神经纤维瘤，２例硬膜型海绵状血管瘤）与Ｗｉｌｌｉｓ环及其分支的关系，与硬膜窦静脉的关系以及与颅底诸孔的关系皆直观显示。６例颈部肿瘤的大小、形态位置及其与颈动脉、颈静脉血管的空间关系都清晰地显示。４例颈椎管内神经纤维瘤生长范围、形态和与骨性颈椎的关系得到直观地显示。三维图像的伪彩色显示、模拟手术视角设计，为病变的定位诊断和治疗决策提供了有效的帮助
Objective: To investigate the value of spiral CT angiography and three-dimensional image reconstruction (3D-SCTA) in the diagnosis of intracranial and head and neck lesions. Materials and Methods: Ninety-eight patients with head and neck lesions underwent 3D-SCTA, including 32 cases of intracranial aneurysms, 5 cases of intracranial AVM, 35 cases of carotid atherosclerosis, 11 cases of meningioma, 2 cases of hemangiomas, 3 cases of skull base neurofibromas, 6 cases of cervical mass and 4 cases of cervical spinal neurofibroma. Results: All the patients underwent spiral CT angiography successfully, 35 cases of carotid atherosclerosis were clear, and can be detected in calcified atherosclerotic plaque, the diagnosis of carotid atherosclerosis was higher Accuracy 32 cases of intracranial aneurysms in 30 cases were clearly displayed aneurysm tumor size, tumor neck, tumor axis, the parent artery and aneurysm and cranial bone organization of the spatial relationship between the aneurysm and the adjacent The relationship between the vascular branches can get more satisfactory display. 16 cases of intracranial tumors (including 11 cases of meningioma, 3 cases of skull base neurofibroma, 2 cases of dural cavernous hemangiomas) and Willis ring and its relationship with the relationship between the dural sinus veins and the skull base The relationship between the holes are intuitively displayed. Six cases of neck tumor size, shape and location of the carotid and jugular veins of the spatial relationship are clearly displayed. Four cases of cervical spinal nerve fiber tumors growth range, morphology and the relationship with the bony cervical vertebra intuitively displayed. Pseudo-color display of three-dimensional images, simulated surgical perspective design, diagnosis and treatment of lesions for the decision-making has provided an effective help