脑脓肿与脑转移瘤的CT、MRI诊断与鉴别诊断  

The CT and MRI Diagnosis and Antidiastole of Brain Abscess and Metastatic Tumor

作　　者：李传明[1] 向月娇[1] 周扬[1] 王健[1] 

机构地区：[1]第三军医大学西南医院放射科,重庆400038

出　　处：《现代生物医学进展》2006年第12期63-65,共3页Progress in Modern Biomedicine

摘　　要：目的:探索CT与MRI对脑脓肿及脑转移瘤的诊断及鉴别诊断价值。方法:对经病理及临床确诊的脑转移瘤及脑脓肿各20例,分别进行CT、MRI的平扫及增强扫描,对其影像表现进行比较分析,研究鉴别诊断的可能性。结果:脑脓肿多以全身或局部感染为首发症状,影像学表现病灶多为单发,平扫以囊性或囊实性表现为主,呈环状强化,壁薄,光滑,无壁结节。周围水肿以轻、中度片状水肿为主。脑转移瘤多以颅内压增高为首发症状,影像学表现多为多发,平扫以低、等密度为主,较小者呈结节状强化,边缘规则,较大者呈环状、花环状、结节状强化,壁厚薄不均,可见壁结节,周围大片状指状水肿。结论:脑脓肿及脑转移瘤具有不同的影像表现,CT及MRI具有较大的诊断意义。Objective： To study the CT and MRI Diagnosis and Antidiastole value of brain abscess and metastatic tumor. Method： Twenty brain abscess and twenty metastatic tumor after patho-diagnosis were collected. All of them were examined by CT and MRI scan and the image appearance were analyzed and compared. Result： Brain abscess often began with a infection of local or the whole body. In CT and MRI image it often appeared single capsule and the wall was smooth. In general it appeared circle reinforcement. There was often light to midrange edema around them. The metastatic tumor often began with syndrome of intracranial hypertension. In GT and MRI image it often appeared many capsule focus. The little ones of them were nodal reinforcement and the others were circle or chaplet reinforcement The wall of them was not smooth and wall nodule was often found There was usually extensive finger edema around them. Conclusion： Brain abscess and metastatic tumor have different medical image appearance. CT and MRI scan have much diagnosis value.

关 键 词：脑脓肿 转移瘤 影像诊断 鉴别诊断 

分 类 号：R445.2[医药卫生—影像医学与核医学] R739.41[医药卫生—诊断学]