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Table 5 Deep gray matter data: field strength comparisons: percent differences

From: Automated segmentation of cerebral deep gray matter from MRI scans: effect of field strength on sensitivity and reliability

  DGM structure MS 1.5T vs. 3T NC 1.5T vs. 3T
Volumes Thalamus 2.7% 5.7%
Caudate 4.8% 5.0%
Putamen 4.1% 5.3%
Globus pallidus 7.9% 10.4%
Total DGM 3.9% 5.9%
Fractions Thalamus 2.4% 5.2%
Caudate 4.5% 4.5%
Putamen 3.7% 4.8%
Globus pallidus 7.5% 9.8%
Total DGM 3.6% 5.4%
Normalized Thalamus 3.2% 4.6%
Caudate 5.3% 3.9%
Putamen 4.6% 4.2%
Globus pallidus 8.4% 9.2%
Total DGM 4.4% 4.8%
  1. Key: For each subject, the percent difference for 3T data minus 1.5T data was calculated, using the 1.5T data as the denominator. The averages of those percentages are shown for each group. DGM = cerebral subcortical deep gray matter; MS multiple sclerosis, NC normal controls; normalized = raw volume x SIENAX normalization factor