Applications of whole brain perfusion and 4-dimensional digital subtraction angiography utilized by lower-dose 320-Row dynamic volumetric CT (320-DVCT)

Author

Chen, Chao-Hung ; Liu, Yung-Chi ; Chung, Cheng-Kuo ; Yeh, Chih-Sheng ; Chin, Shy-Chyi ; Huang, Yung-Hui ; Tsai, Sung-Yi ; Liang, Chia-Hao

Author_Institution

Dept. of Med. Imaging & Intervention, Chang Gung Memorial Found. at Linkou, Taoyuan, Taiwan

Volume

4

fYear

2011

fDate

15-17 Oct. 2011

Firstpage

2030

Lastpage

2033

Abstract

Multi-detector CT (MDCT) is increasingly utilized for the investigation of neurovascular disease in recent year, but limited in z-axis coverage (3.2cm for 64-MDCT) with about 9~12 mSv for small area of the brain close to Circle of Willis. Our aim of the study is to evaluate 4-dimensional (4D) cerebral vessels and whole brain perfusion with 5~7 mSv lower-dose protocol (5.8 mean dose) using 320-row dynamic volumetric CT (320-DVCT) for increasing the diagnostic accuracy and reducing more radiation risk.

Keywords

biomedical MRI; brain; computerised tomography; diseases; dosimetry; medical image processing; neurophysiology; 4-dimensional cerebral vessels; 4-dimensional digital subtraction angiography; diagnostic accuracy; lower-dose 320-row dynamic volumetric CT; lower-dose protocol; multidetector CT; neurovascular disease; radiation risk; whole brain perfusion; Algorithm design and analysis; Aneurysm; Blood; Computed tomography; Deconvolution; Heuristic algorithms; CT angiography; DSA; DVCT; MDCT; brain perfusion; subtraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing (CISP), 2011 4th International Congress on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-9304-3

Type

conf

DOI

10.1109/CISP.2011.6100589

Filename

6100589