CAJ | 학술논문

目的：分析颅底脊索瘤的影像学特点，探讨CT与MR对颅底脊索瘤的诊断和鉴别论断价值。方法：回顾性分析33例经手术病理证实的颅底脊索瘤CT与MR表现。结果：颅底脊索瘤好发于斜坡与蝶鞍，在CT上主要表现为溶骨性骨质破坏，在MR上表现为T1WI上呈高低混杂信号， T2WI上以高信号为主的混杂信号。结论： CT在显示病灶的骨质破坏、病灶内残存的骨质及钙化灶方面优于MR，而MR在显示病灶的范围、对邻近结构的侵犯及与颅底重要结构的关系等方面明显优于CT，联合应用CT与MR检查，不仅可以提高颅底脊索瘤的诊断，还能为临床确定手术方式及手术入路提供重要的依据。
목적：분석로저척색류적영상학특점，탐토CT여MR대로저척색류적진단화감별론단개치。방법：회고성분석33례경수술병리증실적로저척색류CT여MR표현。결과：로저척색류호발우사파여접안，재CT상주요표현위용골성골질파배，재MR상표현위T1WI상정고저혼잡신호， T2WI상이고신호위주적혼잡신호。결론： CT재현시병조적골질파배、병조내잔존적골질급개화조방면우우MR，이MR재현시병조적범위、대린근결구적침범급여로저중요결구적관계등방면명현우우CT，연합응용CT여MR검사，불부가이제고로저척색류적진단，환능위림상학정수술방식급수술입로제공중요적의거。
Objective: Analyze the image characteristics of chordoma of the skull base and discuss the diagnosis and differential di -agnosis value of CT and MRI.Methods: CT and MRI findings in 33 cases of pathologically proved chordoma were retrospectively ana-lyzed.Results: Chordoma of the skull base obliterans occur in clivus and sella turcica , Lesions mainly showed osteolytic bone destruc-tion on CT image, and were mixed signal on T1WI and hyper -intensity on T2WI.Conclusion: The residual sclerotin and calcifica-tion within the lesions were clearly depicted on CT.The extension of lesions , invasions of adjacent tissues and relationship with impor-tant structures of skull base were better displayed on MRI than CT.The combination of CT and MRI can improve diagnosis and provide important basis for operation method and route of chordoma.