Parallel imaging: is GRAPPA a useful acquisition tool for MR imaging intended for volumetric brain analysis?

BMC Medical Imaging

Table 5 Intraclass correlation (class 1) results of BPF and segmented tissue volumes.

iPAT	Tissue	ICC (Sienax)	ICC (Volstat)
2	BPF	0.955	0.971
2	GM	0.997	0.994
2	WM	0.958	0.961
2	CSF	0.967	0.975
4	BPF	0.993	0.988
4	GM	0.976	0.996
4	WM	0.962	0.983
4	CSF	0.992	0.994

The brain volumes were measured using patient images acquired on two separate occasions with the same acceleration factor. Data of 15 patient images are included in the acceleration factor two comparison and of 13 patients in the acceleration factor four comparison. Volumes were measured using the BET-Sienax algorithms of FSL (ICC(Sienax)) and BMAP-Volstat program (ICC(Volstat)). Volumes are measured in cm³ with the exception of BPF, which is unitless.

ISSN: 1471-2342