. Author manuscript; available in PMC: 2010 Sep 27.

Published in final edited form as: Magn Reson Med. 2009 Jun;61(6):1374–1387. doi: 10.1002/mrm.21960

Table 1.

Test-retest repeatability, COV_F (standard deviation of perfusion measurement as a percentage of mean flow), for each combination of breathing and background suppression strategies

Between Session Repeatability
	*Breath-Hold*	*Timed Breathing*	*Free Breathing*

*Heavy Bckgrd Supp*	7 % ^†	23 %	20 %

*Moderate Bckgrd Supp*	12 %	15 %	19 %

*None*		18 %

In-Session Repeatability
*Heavy Bckgrd Supp*		8 % ^*

COV_F is significantly lower:

(10% level, or better, for the F-test) compared to all other measurements except those for Breath-Hold,

^†

5% level, or better, compared to all other between-session measurements.