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. Author manuscript; available in PMC: 2022 Feb 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2020 Sep 24;109(2):614–625. doi: 10.1016/j.ijrobp.2020.09.040

Table 2.

SNR measurements from the patient MRIs shown in Figures 1 to 3

Figure Spatial resolution NEX PZ SNR TZ SNR SV SNR Bladder SNR Left OI SNR

1A MR 1 8.03 ± 1.74 10.30 ± 2.08 6.09 ± 0.33 26.59 ± 3.17 8.98 ± 0.98
1B HR 1 7.06 ± 1.64 9.63 ± 2.03 5.31 ± 0.60 18.69 ± 3.36 7.77 ± 0.66
1C VHR 1 5.14 ± 1.37 8.27 ± 1.22 4.96 ± 0.52 11.32 ± 2.24 6.52 ± 0.25
2A MR 1 4.78 ± 1.24 6.55 ± 1.29 7.27 ± 2.14 27.63 ± 3.30 9.87 ± 1.44
2B MR 3 5.74 ± 2.75 9.05 ± 2.12 9.71 ± 2.85 41.32 ± 5.83 13.88 ± 2.08
2C HR 1 4.13 ± 1.46 6.45 ± 1.27 5.75 ± 1.21 20.87 ± 1.49 8.77 ± 1.51
2D HR 2 5.54 ± 3.65 7.76 ± 1.01 8.73 ± 3.63 26.08 ± 3.28 8.62 ± 1.06
3A MR 1 8.31 ± 1.14 7.68 ± 0.89 5.59 ± 1.03 9.27 ± 0.92 7.00 ± 0.47
3B HR 1 5.22 ± 0.87 4.69 ± 0.20 4.06 ± 0.44 5.42 ± 0.33 4.12 ± 0.53
3C VHR 1 4.54 ± 0.31 4.28 ± 0.27 4.29 ± 0.29 5.63 ± 0.42 3.56 ± 0.10

Abbreviations: HR = high spatial resolution; MR = moderate spatial resolution; NEX = number of signal averages; OI = obturator internus; PZ = peripheral zone; SNR = signal to noise; SV = seminal vesicles; TZ = transition zone; VHR = very high spatial resolution.

SNR was measured in the bladder. Measurements are reported as mean ± 1 standard deviation.