Meng Lin1, Xiaoduo Yu1, Han Ouyang1, Dehong Luo1, Chunwu Zhou1, and Bing Wu2
1Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China, People's Republic of, 2GE Healthcare MR research China, Beijing, Beijing, China, People's Republic of
Tumor extent assessment of NPC is critical for delineating the
radio-therapeutic target region. We aimed to investigate the use of the fusion
images of fat
suppressed (FS)-T2 with arterial spin labeling (ASL)
in measuring the volume of NPC. Two observers measured the volume of 21
untreated NPC using FS-T2, FS-T2/ASL (with PLD=1.0, 1.5 and 2.0s) fusion images
and enhanced-T1WI separately. Compared to those obtained using FS-T2 alone,
measurements made using FS-T2/ASL were more consistent with those made using
enhanced-T1WI. The FS-T2/ASL fusion image has the potential to be an
alternative to enhanced-T1WI, when contrast administration can not be
performed.
