Diagnosis and identification of intracranial ring-enhanced metastatic tumor by MRI with ultra-low field
- VernacularTitle:超低场强MRI对颅内环状强化转移瘤的诊断与鉴别
- Author:
Bing CHEN
;
Chunhua XIA
;
Yajun WANG
- Publication Type:Journal Article
- Keywords:
Brain neoplasms;
Neoplasm metastasis;
Magnetic resonoce imaging
- From:
Chinese Journal of Primary Medicine and Pharmacy
2006;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To summarize and discuss the characters of intracranial ring-enhanced metastatic tumors enhancedly scanned by MRI with ultra-low field.Methods Retrospective study was made of enhanced MRI characters of intracranial ring-enhanced foci in 19 cases diagnosed by clinics and operative pathology.Results Of all 19 cases there were altogether 60 foci,including 15 cases of metastatic tumor with 52 foci,among which there were 39 ring-enhancement,13 even nodular enhancement accompanied by 2 soft mater emhancement,1 cerebral abscess case with ring-enhancement in all 3 foci,1 case cysticercosis of brain with 3 ring enhanced foci accompanied by intraparietal cephalomere enhaucement.In 2 cases of ostrocytoma,mild ring-enhancement could be seen in 1 case of Ⅱ astrocytic tumors,petaling ring enhancement in 1 case of Ⅲ anaplastic astrocytoma.Conclusions The specific shape showed by MRI provides important information for diagnosing intracranial ring-enhanced metastatic tumors.Correct diagnosis can be made in most cases with medical history,age of patient and location of focus.
