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Table 3 Descriptive statistics of brain tissue volumes of a young healthy volunteer scanned 6 times at several acceleration (iPAT) factors.

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

  

BET/Sienax

BMAP/Volstat

Volume

iPAT

Mean

SD

CoV

Mean

SD

CoV

BPF

0

82.9%

0.3%

0.3%

80.7%

0.3%

0.3%

 

2

82.3%

0.4%

0.5%

80.6%

0.2%

0.3%

 

4

82.4%

0.3%

0.4%

78.1%

0.3%

0.3%

GM

0

823

7.6

0.9%

786

4.2

0.5%

 

2

817

6.5

0.8%

786

2.8

0.4%

 

4

756

4.0

0.5%

781

2.8

0.4%

WM

0

539

8.5

1.6%

483

3.2

0.7%

 

2

553

5.0

0.9%

485

3.8

0.8%

 

4

635

3.3

0.5%

452

6.1

1.3%

CSF

0

281

7.3

2.6%

304

4.4

1.4%

 

2

294

9.5

3.2%

305

3.3

1.1%

 

4

298

7.1

2.4%

345

4.2

1.2%

  1. Volumes were measured using the BET and Sienax algorithms of FSL in addition to the BMAP/Volstat in-house software. Volumes are in cm3 with the exception of BPF, which is unitless.