CAJ | 학술논문

目的：分析颅底脊索瘤磁共振影像（MRI）表现及诊断价值。方法回顾性分析经病理证实的24例颅底脊索瘤的磁共振影像学表现及特点，包括发生部位、信号特点、生长方式、强化特点等。结果24例颅底脊索瘤中，蝶鞍型6例，斜坡型9例，颞枕区型4例，广泛型3例，鼻咽型1例，病灶形态以类圆形分叶状为主，MR表现为T1WI呈混杂信号，T2WI以高、低混杂信号为主，增强扫描病灶呈轻至中度不均匀强化，病变内可有出血、囊变、钙化灶；磁共振的多方位成像可以清晰显示病变位置及与邻近重要结构的关系。结论磁共振检查可以清楚显示颅底脊索瘤的部位、形态、大小、周围组织侵犯范围以及与邻近结构的解剖关系，对明确诊断、术式选择及术后随访评估具有重要作用。
목적：분석로저척색류자공진영상（MRI）표현급진단개치。방법회고성분석경병리증실적24례로저척색류적자공진영상학표현급특점，포괄발생부위、신호특점、생장방식、강화특점등。결과24례로저척색류중，접안형6례，사파형9례，섭침구형4례，엄범형3례，비인형1례，병조형태이류원형분협상위주，MR표현위T1WI정혼잡신호，T2WI이고、저혼잡신호위주，증강소묘병조정경지중도불균균강화，병변내가유출혈、낭변、개화조；자공진적다방위성상가이청석현시병변위치급여린근중요결구적관계。결론자공진검사가이청초현시로저척색류적부위、형태、대소、주위조직침범범위이급여린근결구적해부관계，대명학진단、술식선택급술후수방평고구유중요작용。
Objective To analyze the MRI features and its diagnostic value for chordoma in the skull base. Methods MR images were restrospectively analyzed in 24 patients with pathologically confirmed chordoma in the skull base. MRI features were evaluated,including tumor morphology,location,pattern of enhanced and relation with adjacent structures. Results Of all the 24 cases,6 were located at sphenoid saddle,9 at ramp,4 at temporal and occipital region,3 were diffused,1 was of nasopharyngeal type. Most of the lesion shapes were round and segmented;MRI showed mixed signal in T1WI images,high signal and low signal in T2WI;enhanced scan showed light to moderate inhomogeneous enhancement;there were bleeding,cystic change and calcified lesion. Multiple reconstruction of MRI could clearly show the relationship between the lesion position and adjacent important structures. Conclusion MR checkin could correctly show the location,morphology,size,internal structure,infiltration range,the anatomical relationship with adjacent structure,has important role on surgical resection and other therapy;some prediction about local recurrence and prognosis may be taken on the basis of imaging staging.