Table 3 Signal-to-noise ratio in human prostates with benign hyperplasia examined with endorectal coil filled with air in site 2 (n = 66 corresponding regions of interests, in anterior and posterior locations, respectively), and without endorectal coil at site 1 (n = 60 corresponding regions of interest, in anterior and posterior locations, respectively)

SNR, PZa (mean ± SD)

SNR, PZpl (mean ± SD)

p value

SNR, Pza (mean ± SD)

SNR, PZpl (mean ± SD)

p value

6.2 ± 2.6

7.0 ± 3.0

0.105

4.4 ± 1.2

6.0 ± 2.8

< 0.001

4.9 ± 2.2

5.8 ± 3.0

0.026

5.8 ± 4.2

5.4 ± 2.7

0.558

8.0 ± 4.3

11.0 ± 6.0

0.001

12.6 ± 7.1

12.6 ± 6.5

0.964

6.0 ± 2.3

8.2 ± 4.1

< 0.001

6.4 ± 4.4

9.3 ± 12.3

0.096

SNR, Tza (mean ± SD)

SNR, TZp (mean ± SD)

p value

SNR, Tza (mean ± SD)

SNR, TZp (mean ± SD)

p value

8.3 ± 3.5

7.6 ± 3.2

0.155

5.1 ± 1.9

6.1 ± 6.4

0.218

7.5 ± 2.8

7.1 ± 2.7

0.292

8.4 ± 3.7

8.6 ± 3.9

0.688

13.5 ± 5.4

13.7 ± 5.0

0.796

16.5 ± 5.8

16.5 ± 6.1

0.972

9.4 ± 3.5

8.7 ± 3.6

0.271

9.2 ± 3.5

11.1 ± 9.8

0.121