Application of ~1H magnetic resonance spectroscopy in diagnosis and differential diagnosis for bacteroidal brain abscesses
- VernacularTitle:质子磁共振波谱在细菌性脑脓肿诊断与鉴别诊断中的价值
- Author:
Jin WANG
;
Xiangyang GONG
;
Xunze SHEN
- Publication Type:Journal Article
- Keywords:
Magnetic resonance spectroscopy;
Brain abscess;
Diagnosis,differential
- From:
Chinese Journal of Neurology
1999;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To show the distinctive resonance pattern in 7 cases of intracranial abscess and 19 cases of cystic lesions as to evaluating these specific resonance peaks. Methods Characteristics of ~1H-MRS in 7 patients with brain abscesses and 19 with cystic or necrotic intracranial tumors were analyzed and compared. Peak assignment was based on reference values from in vivo and in vitro studies. Results Among 7 patients with brain abscesses, 6 showed the presence of cytosolic amino acid (AA) at 0.9 ppm, 5 showed alanine (Ala) at 1.5 ppm, 2 showed acetate (Ac) at 1.9 ppm and 1 patient showed succinate (Suc) at 2.4 ppm. None of the above resonances had been detected in spectra from 19 cases of cystic or necrotic intracranial tumors. Conclusions ~1H-MRS might reflect the different histochemical specificity of abscesses and cystic or necrotic tumors effectively. It should have special values in diagnosis and differential diagnosis of the brain abscess.
