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目的探讨多排螺旋CT血管造影(MSCTA)对脑膜瘤及其周围组织的显示能力,评价其临床应用价值。方法收集资料完整的脑膜瘤病人33例,均行CT平扫和双期注药、一次延迟CT血管造影检查。图像送至SUN工作站后处理,观察瘤体影像特点及其与周围组织的关系。结果16例为前、中颅凹单发脑膜瘤,9例为额颞叶、8例为顶叶脑膜瘤。重建图像显示瘤体充分强化,颅骨、血管、肿瘤三者立体关系显示清楚。主要征象包括:血管被肿瘤包绕,颅骨受侵犯,肿瘤周围组织移位等。结论双期注药多排螺旋CT血管造影可以充分显示脑膜瘤的影像特征,重建后可清楚显示肿瘤、血管及其与邻近组织的关系,有助于脑膜瘤的诊断及治疗方案的制订,评估手术风险。
Objective To investigate the ability of multi-slice spiral CT angiography (MSCTA) to display the meningioma and its surrounding tissues and evaluate its clinical value. Methods Thirty-three patients with complete meningiomas were enrolled in this study. All patients underwent CT scan and double-phase injection. A delayed CT angiography was performed. The images were sent to the SUN workstation for post-processing to observe the characteristics of the tumor and its relationship with the surrounding tissues. Results 16 cases were anterior and midcapsular solitary meningioma, 9 cases were frontotemporal lobe and 8 cases were parietal lobe meningioma. Reconstruction of the tumor showed full enhancement, three-dimensional relationship between the skull, blood vessels, tumors showed clearly. The main signs include: blood vessels surrounded by tumors, skull violations, such as tumor tissue shift. Conclusions Double-injection multi-detector row spiral CT angiography can fully display the imaging features of meningioma. After reconstruction, the tumor, blood vessels and their relationship with adjacent tissues can be clearly displayed, which is helpful for the diagnosis and treatment of meningioma. Surgical risk.