摘要
目的 探讨宫颈癌的MRI表现 ,评价MRI成像方法。方法 98例经病理证实的宫颈癌患者 (鳞癌 89例 ,腺癌 7例 ,腺鳞癌 2例 )行盆腔部轴位SET1WI ,轴位及矢状位TSET2WI ,冠状位脂肪抑制 (SPIR)TSET2WI及Gd DTPA增强后轴位、冠状位、矢状位SET1WI扫描。分析肿瘤的MRI表现特征及侵犯范围 ,部分病例MRI所见与手术所见和病理结果对比。结果 宫颈癌的MRI表现颇具特征性 ,T2WI呈较高信号 ,与宫颈基质低信号及子宫内膜、宫旁脂肪组织高信号有良好对比 ,T1WI呈等或低信号 ,Gd DTPA增强后T1WI可轻度强化。 33例出现信号不均匀表现 ,病理上可为假腺腔、坏死及角化珠。在MRI上 ,83 .6 %的宫颈癌出现宫颈外侵犯 ,其中阴道侵犯 6 8.4% ,宫体侵犯 5 3 .1%。结论 MRI能多方位清晰显示宫颈癌瘤灶及侵犯范围与途径 ,明显优于其他影像学检查方法 ,可作为宫颈癌治疗前常规的影像检查方法。
Objective To study the MRI features of uterine cervical cancer and to evaluate the method of MRI technology. Methods Pelvic MRI was performed in 98 patients with cervical cancer proved by pathology, including 89 cases of squamous cell cancer, 7 cases of adenocancer and 2 cases of squamous-adenocancer. The MRI scanning included axial SE T1WI, axial and sagittal TSE T2WI, coronal SPIR TSE T2WI, and axial, sagittal and coronal Gd-DTPA enhanced SE T1WI. MR images were analyzed for the location and extension of the primary tumor. For some of the cases, MR findings were compared with surgical-pathologic findings. Results MR findings of cervical cancer were characteristic, with moderate hyperintense on T2WI, a significant contrast noise ratios among the cervical cancer, and hypointense on T1WI, as well as a little of enhanced after bolus intravenous Gd-DTPA T1WI. In 33 patients, tumor's singal was heterogeneous, which was caused by pseudoglandular lumen, necrosis and keratin pearl. MRI showed that 83.6% cervical cancers had been invasive to the area out of cervix, to the vaginal in 68.4%, to the uterine body in 53.1% . Conclusion MR imaging can show the local tumors and extension of the cervical cancer clearly on multiple planes and angles. It is superior to any other imaging methods, and should be a routine imaging study of cervical cancer.[
出处
《中国医学影像技术》
CSCD
2003年第3期351-353,共3页
Chinese Journal of Medical Imaging Technology
