Title :
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
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;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6100589
