Fig. 5
From: Multicenter analysis for inter reader agreement of PIQUAL score v2 for basic readers in prostate MRI
A 62-year-old man who underwent multi-parametric prostate MRI at 1.5 T. (a) On the axial T2-weighted image, there is prominent noise with a relatively low signal-to-noise ratio. Anatomical structures are mostly delineated, and no artifacts are present; however, the signal-to-noise ratio remains low on both coronal and sagittal T2 W images (not shown). (b) The anatomically matched axial apparent diffusion coefficient (ADC) map is free of artifacts, but the contrast and signal-to-noise ratio are relatively low, though delineation of the peripheral and transitional zones is possible. (c) Vessels are clearly delineated, with no visible artifacts on the dynamic-contrast-enhanced image. Reader 1, 4, and 5 assigned a Prostate Imaging Quality (PI-QUAL) V2 score of 2, while reader 2 and 3 assigned a PI-QUAL V2 score of 1 for this case. For PI-QUAL V1, reader 1 and 4 assigned a score of 4, reader 2 and 5 assigned a score of 3, and reader 3 assigned a score of 2.
