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目的:探讨鼻咽部增强CT冠状位扫描对诊断鼻咽癌侵犯颅底的价值。方法:将经病理学检验证实的193例鼻咽癌的CT增强轴位扫描与冠状位扫描颅底情况进行回顾性对照分析。结果:193例鼻咽癌中,120例(占62.2％)经两种扫描均未见颅底侵犯;10例(5 2％)轴位扫描末见颅底异常而经冠状扫描发现其受侵犯;15例(7.8％)轴位可疑颅底受侵犯而经冠状扫描肯定侵犯11例,排除4例;轴位扫描显示海绵受窦侵有26例,增强CT冠状扫描则为3例。结论:增强CT冠状扫描对确定鼻咽癌有无颅底骨质侵犯及其侵犯部位、范围与程度均有再要价值,在显示海绵窦受侵犯、肿瘤组织沿脑池或/和脑沟等蛛网膜下腔生长,侵犯周围组织的征像方面,明显优于轴位扫描。
Objective: To investigate the value of nasopharyngeal enhanced CT coronary angiography in the diagnosis of nasopharyngeal carcinoma invade skull base. Methods: 193 cases of nasopharyngeal carcinoma confirmed by pathological examination were analyzed retrospectively by CT enhanced axial scan and coronal scan skull base. Results: In 193 cases of nasopharyngeal carcinoma, 120 cases (62.2%) had no skull base invasion by two kinds of scanning. In 10 cases (52%), the axial skull base was abnormal and skull base abnormalities were found by coronal scan ; 15 cases (7.8%) axial suspected suspicion of skull base invasion by coronal scan certainly 11 cases, 4 cases were excluded; axial scan showed sponge sinus invasion in 26 cases, enhanced CT coronary angiography was 3 cases. Conclusion: Enhanced CT coronary angiography to determine the presence of skull base bone invasion and invasion of the site of its extent and extent have additional value, in the show of cavernous sinus invasion, tumor along the brain pool or / and sulcular Subarachnoid growth, violations of surrounding tissue signs, significantly better than the axial scan.