中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2015年
4期
415-418
,共4页
视神经胶质瘤%X线计算机断层摄影术(CT)%磁共振成像(MRI)%超声(US)
視神經膠質瘤%X線計算機斷層攝影術(CT)%磁共振成像(MRI)%超聲(US)
시신경효질류%X선계산궤단층섭영술(CT)%자공진성상(MRI)%초성(US)
Optic glioma%X-ray computed tomography (CT)%Magnetic resonance imaging (MRI)%Ultrasound (US)
目的 分析视神经胶质瘤的CT、MRI及超声影像学资料,探讨其在诊断和鉴别诊断中的价值.方法 回顾分析1991年5月至2012年5月在天津医科大学眼科医院及第二附属医院眼科经手术病理证实的视神经胶质瘤30例,其中CT检查30例,MRI检查20例,超声检查30例.结果 CT表现为视神经肿大,其中椭圆形12例,梭形12例,类圆形3例,坛状2例,串珠状1例.局限于眶内段10例,眶内段且累及视神经管20例.边界清28例,边界不甚清楚2例.密度较均匀25例,内部有低密区5例.增强扫描6例,肿瘤呈轻到中等强化,可辨认出颅内蔓延1例.MRI T1WI与脑实质相比呈等或低信号,T2WI呈等或高信号,5例增强可见颅内蔓延.B型超声病变呈中等回声15例,弱回声12例,缺乏内回声3例.视乳头向前突起9例.彩色多普勒血流成像6例,4例病变内见少量血流信号,2例未见血流信号.结论 CT、MRI及超声检查对于视神经胶质瘤的诊断具有重要地辅助意义,但各有优缺点,其中MRI对视神经胶质瘤的定位、定性诊断优于CT及超声.
目的 分析視神經膠質瘤的CT、MRI及超聲影像學資料,探討其在診斷和鑒彆診斷中的價值.方法 迴顧分析1991年5月至2012年5月在天津醫科大學眼科醫院及第二附屬醫院眼科經手術病理證實的視神經膠質瘤30例,其中CT檢查30例,MRI檢查20例,超聲檢查30例.結果 CT錶現為視神經腫大,其中橢圓形12例,梭形12例,類圓形3例,罈狀2例,串珠狀1例.跼限于眶內段10例,眶內段且纍及視神經管20例.邊界清28例,邊界不甚清楚2例.密度較均勻25例,內部有低密區5例.增彊掃描6例,腫瘤呈輕到中等彊化,可辨認齣顱內蔓延1例.MRI T1WI與腦實質相比呈等或低信號,T2WI呈等或高信號,5例增彊可見顱內蔓延.B型超聲病變呈中等迴聲15例,弱迴聲12例,缺乏內迴聲3例.視乳頭嚮前突起9例.綵色多普勒血流成像6例,4例病變內見少量血流信號,2例未見血流信號.結論 CT、MRI及超聲檢查對于視神經膠質瘤的診斷具有重要地輔助意義,但各有優缺點,其中MRI對視神經膠質瘤的定位、定性診斷優于CT及超聲.
목적 분석시신경효질류적CT、MRI급초성영상학자료,탐토기재진단화감별진단중적개치.방법 회고분석1991년5월지2012년5월재천진의과대학안과의원급제이부속의원안과경수술병리증실적시신경효질류30례,기중CT검사30례,MRI검사20례,초성검사30례.결과 CT표현위시신경종대,기중타원형12례,사형12례,류원형3례,단상2례,천주상1례.국한우광내단10례,광내단차루급시신경관20례.변계청28례,변계불심청초2례.밀도교균균25례,내부유저밀구5례.증강소묘6례,종류정경도중등강화,가변인출로내만연1례.MRI T1WI여뇌실질상비정등혹저신호,T2WI정등혹고신호,5례증강가견로내만연.B형초성병변정중등회성15례,약회성12례,결핍내회성3례.시유두향전돌기9례.채색다보륵혈류성상6례,4례병변내견소량혈류신호,2례미견혈류신호.결론 CT、MRI급초성검사대우시신경효질류적진단구유중요지보조의의,단각유우결점,기중MRI대시신경효질류적정위、정성진단우우CT급초성.
Objective To evaluate CT,MRI and Ultrasonic imaging performance and their climcal significance of optic gliomas.Methods CT,MRI and US images of 30 patients with pathologically confirmed optic gliomas were analyzed retrospectively.CT scanning and Ultrasonic were performed in 30 patients,whereas MRI was performed in 20 patients.Results Of the 30 cases with optic gliomas,a fusiform thickening of optic nerve was found on CT and/or MRI images in 12,an ovoid mass of the optic nerve in 12,a circular mass of the optic nerve in 3,an altar mass of the optic nerve in 2,and a beads string mass in 1 case.Enlargement of intraorbital segments of optic nerve was seen inl0 cases,intraorbital and optic canal involved together was seen in 20 cases.Twenty-eight cases showed a clear boundary and only 2 cases didn't.CT scanning of 25 cases performed iso-density mass whereas 5 cases showed a low density within the area.Postcontrast CT was performed in 6 patients,showed a medium enhancement of optic nerve,and intracranial expansion in 1 case was visible.The swelling optic nerve showed a medium or low signal on Tl-weighted images,high signal on T2-weighted images compared with brain parenchyma.Intracranial expansion could be seen in 5 patients using contrast administration.Fifteen cases of optic gliomas performed moderate echo on B ultrasonic,and weak echo in 12 cases,lack of echo in 3 cases,and protruding nipple was seen in 9 cases.A small amount of blood flow signals could be seen in 4 cases in all the 6 patients,except 2 cases.Conclusions CT,MRI and ultrasound are important for the diagnosis of optic glioma.Though some disadvantages,MRI may be the best method of inspection of the disease.
