Box-and-whisker plots show distribution of, left, apparent diffusion
coefficient (ADC) (in square millimeters per second) and, right,
Vascular, Extracellular, and Restricted Diffusion for Cytometry in
Tumors (VERDICT) MRI–determined intracellular volume fraction
(fIC) (in fraction of signal, where 1.0 =
total signal). Key differences in metrics between benign and/or Gleason
grade 3+3 lesions and Gleason grade 3+4 lesions are shown,
whereby P = .26 for ADC and P
= .002 for intracellular volume fraction. Corrected
P values for ADC after Bonferroni correction were
as follows: no focal lesion versus benign and/or Gleason grade 3+3
lesions, P = .011; no focal lesion versus Gleason
grade 3+4 lesion, P ≤ .001; no focal lesion
versus lesions with Gleason grade 4+3 or higher, P
≤ .001; benign and/or Gleason 3+3 lesions versus focal
lesions with Gleason grade 3+4, P = .26;
benign and/or Gleason grade 3+3 lesions versus focal lesions with
Gleason grade of 4+3 or higher, P = .047; and
Gleason grade 3+4 lesions versus focal lesions with Gleason grade
of 4+3 or higher, P > .99. Corrected
P values for intracellular volume fraction after
Bonferroni correction were as follows: no focal lesion versus benign
and/or Gleason grade 3+3 lesions, P ≤ .001;
no focal lesion versus Gleason grade 3+4 lesions,
P ≤ .001; no focal lesion versus focal
lesions with Gleason grade of 4+3 or higher, P
≤ .001; benign and/or Gleason grade 3+3 lesions versus focal
lesions with Gleason grade 3+4, P = .002;
benign and/or Gleason grade 3+3 lesions versus focal lesions with
Gleason grade of 4+3 or higher, P = .006; and
Gleason grade 3+4 lesions versus focal lesions with Gleason grade
of 4+3 or higher, P > .99.