Skip to main content
. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: J Comput Assist Tomogr. 2014 Jul-Aug;38(4):526–534. doi: 10.1097/RCT.0000000000000053

TABLE 1.

Level of confidence in stability of CTp parameter values as a function of acquisition duration, and three levels of pre-enhancement displacement, observed in liver tumors and normal liver tissue. (Note: PS failed to stabilize with high confidence within the 590s of available data).

T1 time relative to T1=0s
(seconds)		 CTp
parameter		 Tumor Normal liver
160s 220s 360s 590s 160s 220s 360s 590s
BF Low Mod High High Low Mod High High
BV Low Mod High High Low Mod High High
−2.0s MTT Low Mod High High Low Mod High High
PS Low Low Mod Mod Low Low Mod Mod
HAF High High High High Low Mod High High
BF Low Mod High High Low Mod High High
BV Low Mod High High Low Mod High High
0s MTT Low Mod High High Low Low High High
PS Low Low Mod Mod Low Low Mod Mod
HAF - Mod High High Low Mod High High
BF Low Mod High High Low Mod High High
BV Low Mod High High Low Mod High High
+2.0s MTT Low Mod High High Low Mod High High
PS Low Low Mod Mod Low Low Mod Mod
HAF Low Mod High High Low Mod High High