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Table 2 Criteria for qualitative comparison of image quality in diffusion-weighted imaging in patients with bladder cancer

From: Diffusion-weighted magnetic resonance imaging in bladder cancer: comparison of readout-segmented and single-shot EPI techniques

Susceptibility
 1: marked distortion was seen
 2: moderated distortion was seen
 3: little distortion was seen
 4: no distortion was seen
Detectability
 1: not visible
 2: partial visibility
 3: visibility
 4: excellent visibility
Motion artifact
 1: marked artifact
 2: moderate artifact
 3: slight artifact
 4: no artifact
Image blurring
 1: the bladder wall definition was not visible
 2: the bladder wall definition was partially visible
 3: the bladder wall definition was visible
 4: the bladder wall definition was clearly visible