The study on dynamic CT perfusion imaging and in recurrence of TIA
- VernacularTitle:短暂性脑缺血发作的动态CT灌注成像与缺血再发作的关系
- Author:
Qi TAN
;
Lingyu SUN
;
Guorong HE
;
Ruxun HUANG
;
Hao CHEN
;
Quan PENG
;
Shaonian TANG
;
Zhe LI
;
Zongji HU
- Publication Type:Journal Article
- Keywords:
TIA Recurrence CT perfusion imaging
- From:
Chinese Journal of Nervous and Mental Diseases
2010;36(1):5-9
- CountryChina
- Language:Chinese
-
Abstract:
Objective Evaluation of cerebral blood flow in patients with transient ischemic attack (TIA) using cerebral CT perfusion imaging.Methods CT perfusion scan was performed on a consecutive series of 20 patients with clinical definite TIA.Following their initial CT scan at acute stage of TIA, patients underwent two repeat CT perfusion scanning of region of interest at acute stage and one month after symptom remission.Results Mild to moderate decrease in regional cerebral blood flow (rCBF) and unchanged or mildly decrease in regional cerebral blood volume (rCBV) were observed at acute stage in the majority cases.Normal cerebral perfusion was found in 12 cases and mild to moderate decrease of rCBF in 8 cases one month after TIA.During the one-year follow-up period, all of 12 cases with normal cerebral perfusion did not have recurrence while among 8 cases with mild to moderate decrease of rCBF at initial scan, 6 cases had recurrent TIA or cerebral infarction and 2 cases did not have recurrence.Patients with more severe cerebral perfusion defects usually had a shorter interval time between two attacks.Conclusions Intensive intervention should be performed on patients with severe and long lasting decrease of cerebral perfusion.
