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Low-dose cerebral CT perfusion imaging (CTPI) of senile dementia: Diagnostic performance.
MedLine Citation:
PMID:  22704835     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
To evaluate the clinical value of low-dose cerebral CTPI in the diagnosis of senile dementia, as an attempt to develop a new imaging method to diagnose this disease and measure its severity. 95 patients of senile dementia (52 with Alzheimer's disease (AD), 43 with vascular dementia (VD)) and 30 healthy subjects (control group) were underwent low-dose cerebral CTPI examinations with multi-slices spiral CT. The CTPI images were analyzed using perfusion software. Derived perfusion parameters including cerebral blood volume (CBV), cerebral blood flow (CBF), mean transit time (MTT) and time to peak (TTP) were measured. Diagnostic value of perfusion parameters was evaluated by receiver-operating characteristic (ROC) curve. The CBV and CBF of both of frontal lobe, temporal lobe, hippocampus and basal ganglial area in the patients with senile dementia were much lower than those in the healthy group. And MTT and TTP of the areas above-mentioned in the senile dementia group were higher than those in the control group. There was statistically significant difference between them (p<0.05). The areas under ROC curves of perfusion parameters left temporal lobe MTT, left the basal ganglia MTT and left the hippocampus MTT to diagnose senile dementia were 0.959, 0.920, 0.916, and diagnostic accuracy rate is higher. The areas under ROC curve of the left frontal MTT, the left basal ganglia CBV were 0.867 and 0.819, diagnosis accuracy medium. The results showed that cerebral CTPI is valuable for the diagnosis of senile dementia.
Authors:
Zhen Tang; Feng Chen; Jie Huang; Linghua Shi; H T Gong; Hongmei Fu; Zhengwan Qu; Xiaoling Pi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-15
Journal Detail:
Title:  Archives of gerontology and geriatrics     Volume:  -     ISSN:  1872-6976     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8214379     Medline TA:  Arch Gerontol Geriatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Radiology, Branch Hospital in Fengxian of Shanghai No. 6 People's Hospital, Shanghai 201400, China.
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