Skip to main content

Table 4 Image quality analysis between the combined rigid two-channel phased-array endorectal coil and an external phased-array coil (ERC-PAC) and the external PAC datasets for 2 independent observers. Mean and standard deviation for each image quality parameter are shown and significant values are highlighted in bold

From: Prostate MRI using a rigid two-channel phased-array endorectal coil: comparison with phased array coil acquisition at 3 T

  Feature Observer 1 Observer 2
PAC ERC-PAC p PAC ERC-PAC p
T2WI Sharpness/detail 3.7 ± 0.6 4.1 ± 0.9 0.03 3.7 ± 1.0 3.7 ± 0.9 0.95
Motion 3.7 ± 0.7 4.0 ± 0.8 0.07 3.4 ± 0.9 3.4 ± 0.7 0.95
Overall Quality 3.6 ± 0.7 4.0 ± 0.8 0.03 3.5 ± 0.9 3.5 ± 0.8 0.89
DWI low b-value (b50) Sharpness/detail 3.8 ± 0.4 4.0 ± 0.4 0.17 4.0 ± 0.5 3.8 ± 0.6 0.34
Motion 3.8 ± 0.4 4.0 ± 0.4 0.23 4.0 ± 0.3 3.8 ± 0.7 0.27
Distortion 3.9 ± 0.4 4.0 ± 0.4 0.30 3.9 ± 0.5 3.5 ± 0.7 0.02
Ghosting/susceptibility 3.9 ± 0.3 4.0 ± 0.4 0.45 4.3 ± 0.7 3.9 ± 0.9 0.02
Overall quality 3.9 ± 0.3 4.0 ± 0.4 0.13 3.9 ± 0.3 3.7 ± 0.6 0.05
DWI high b-value (b2000) Sharpness/detail 3.8 ± 0.4 4.1 ± 0.6 0.05 2.8 ± 0.7 3.5 ± 0.7 <0.001
Motion 3.8 ± 0.4 4.1 ± 0.5 0.02 2.9 ± 0.6 3.4 ± 0.7 0.02
Distortion 3.8 ± 0.5 4.1 ± 0.5 0.01 3.2 ± 0.7 3.4 ± 0.8 0.59
Ghosting/susceptibility 3.8 ± 0.5 4.1 ± 0.5 0.01 3.5 ± 0.9 3.7 ± 0.9 0.63
Overall quality 3.8 ± 0.4 4.1 ± 0.5 0.02 3.0 ± 0.7 3.4 ± 0.7 0.02
ADC Sharpness/detail 3.7 ± 0.5 4.1 ± 0.5 0.01 3.6 ± 0.6 3.2 ± 0.6 0.01
Motion 3.8 ± 0.4 4.1 ± 0.5 0.01 3.6 ± 0.5 3.2 ± 0.7 0.02
Distortion 3.8 ± 0.5 4.1 ± 0.4 0.001 3.7 ± 0.5 3.4 ± 0.6 0.07
Ghosting/susceptibility 3.8 ± 0.5 4.1 ± 0.4 0.01 4.0 ± 0.6 3.5 ± 0.9 0.002
Overall quality 3.8 ± 0.5 4.1 ± 0.4 0.002 3.6 ± 0.5 3.2 ± 0.7 0.003
  1. Abbreviations: DWI Diffusion weighted imaging, ADC Apparent diffusion coefficient