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Table 3 Results of qualitative evaluations for AP-DWI, B0-corrected-DWI, and RDC-DWI

From: Thin-slice reverse encoding distortion correction DWI facilitates visualization of non-functioning pituitary neuroendocrine tumor (PitNET)/pituitary adenoma and surrounding normal structures

 

AP-DWI

B0-corrected-DWI

RDC-DWI

p-value

Frontal artifact

1.0 (1.0–1.0)

2.0 (1.5–2.0)

2.0 (2.0–2.0)

< 0.001a, b, c

Temporal artifact

1.0 (1.0–2.0)

2.0 (2.0–2.0)

2.0 (2.0–2.0)

< 0.001a, b, 0.001c

Right optic nerve

3.0 (3.0–3.0)

3.0 (3.0–3.0)

3.0 (3.0–3.0)

0.220a, 0.290b, 1.000c

Left optic nerve

3.0 (3.0–3.0)

3.0 (3.0–3.0)

3.0 (3.0–3.0)

0.003a, 0.093b, 1.000c

Right oculomotor nerve

3.0 (2.0–3.0)

3.0 (2.0–3.0)

3.0 (2.0–3.0)

1.000a, 0.037b, 0.002c

Left oculomotor nerve

3.0 (2.0–3.0)

3.0 (2.0–3.0)

3.0 (3.0–3.0)

1.000a, 0.146b, 0.071c

Right trigeminal nerve

3.0 (3.0–3.0)

3.0 (3.0–3.0)

4.0 (3.0–4.0)

0.085a, < 0.001b, c

Left trigeminal nerve

3.0 (3.0–4.0)

3.0 (3.0–4.0)

4.0 (3.0–4.0)

0.013a, < 0.001b, c

Cavernous sinus invasion

1.0 (0.0–2.0)

2.0 (2.0–2.0)

2.0 (2.0–2.0)

< 0.001a, b, 0.700c

Tumor visualization

2.0 (2.0–3.0)

3.0 (3.0–3.0)

3.0 (3.0–4.0)

< 0.001a, b, c

  1. Data are presented as the median (interquartile range) score. Note that susceptibility artifact in the frontal and temporal lobes; anatomic visualization of the optic, oculomotor, and trigeminal nerves; and overall tumor visualization are assessed using a 5-point Likert scale (0, very poor; 1, poor; 2, fair; 3, good; 4, excellent), and visualization of cavernous sinus invasion is assessed using a 3-point Likert scale (0, poor; 1, fair; 2, good)
  2. aAP-DWI versus B0-corrected-DWI
  3. bAP-DWI versus RDC-DWI
  4. cB0-corrected-DWI versus RDC-DWI
  5. AP Anterior-posterior, DWI Diffusion-weighted imaging, RDC-DWI Reverse encoding distortion correction DWI