%A Weiwei CHEN, Jianpin QI, Wenzhen ZHU, Wenhua HUANG, Jinmei SONG %T Simultaneous acquisition of CT angiography and whole brain CT perfusion images by using multiphase dynamic helical scan on 16 MDCT %0 Journal Article %D 2009 %J Front. Med. %J Frontiers of Medicine %@ 2095-0217 %R 10.1007/s11684-009-0023-8 %P 230-235 %V 3 %N 2 %U {https://journal.hep.com.cn/fmd/EN/10.1007/s11684-009-0023-8 %8 2009-06-05 %X
We implemented a new protocol — multiphase dynamic helical scan to acquire CT angiography (CTA) and whole brain CT perfusion (CTP) images simultaneously with single scan on 16 multidetector CT (MDCT). A total of 90 patients who were randomly assigned into 3 groups were included in our study. Each group underwent CT scan by using the new protocol, traditional CTA and CTP protocol, respectively. The image quality of CTA, the CTP parameter values and the X-ray doses were measured and compared between the new protocol and the traditional protocols. There was no statistically significant difference in the CTA image quality between the above methods (