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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Magn Reson Imaging. 2016 Jan 26;34(5):674–681. doi: 10.1016/j.mri.2016.01.003

Table 3.

MRSI Index Lesion descriptive statistics and MRI stage in 262 patients. IQR = interquartile range.

MRSI Index Lesions-total voxels N %
No lesion (0 voxels) 79 30.1
Lesions with 1–3 voxels 93 35.5
Lesions with ≥ 4 voxels 90 34.4
MRSI Index Lesion Voxel Characteristics median range IQR
Number of voxels (NILV) 3 1 – 79 2.0–7.0
Number of high grade voxels (NHGV) 0 0–55 2.0–8.0
Number of voxels with undetectable 0 0–63 1.0–6.0
polyamines (NUPV)
MRSI Index Lesion Zonal Location N %
Peripheral Zone 143 54.6
Transition Zone 14 5.4
Both PZ and TZ 26 9.9
No Lesion 79 30.1
MRSI Data Quality Score N %
1 51 19.5
2 119 45.4
3 92 35.1
MRI Stage N %
1 29 11.06
2 130 49.62
3 76 29.01
4 18 6.87
5 1 0.38
6 5 1.91
7 3 1.14