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

European Radiology Experimental

Table 4 SNR, CNR, and ADC values according to DWI type

	AP-DWI	B₀-corrected-DWI	RDC-DWI	p-value
SNR	11.7 ± 2.4	11.1 ± 1.9	14.5 ± 3.2	0.001^a, < 0.001^{b, c}
CNR	4.5 ± 4.4	4.8 ± 2.4	6.1 ± 2.8	1.000^a, 0.094^b, < 0.001^c
ADC_pons (×10^-6 mm²/s)	679.5 ± 46.2	674.5 ± 47.8	679.4 ± 35.9	0.779^a, 1.000^b, 0.959^c
ADC_{PitNET/pituitary adenoma} (×10^-6 mm²/s)	695.7 ± 141.8	701.3 ± 138.4	711.9 ± 134.5	1.000^a, 0.359^b, 0.309^c

Data are presented as the mean ± standard deviation
^aAP-DWI versus B₀-corrected-DWI
^bAP-DWI versus RDC-DWI
^cB₀-corrected-DWI versus RDC-DWI
ADC Apparent diffusion coefficient, ADC_{PitNET/pituitary adenoma} ADC value for the solid portion of pituitary neuroendocrine tumor (PitNET)/pituitary adenoma, ADC_pons ADC value for the pons, AP Anterior-posterior, CNR Contrast-to-noise ratio, DWI Diffusion-weighted imaging, SNR Signal-to-noise ratio, PitNET Pituitary neuroendocrine tumor, RDC-DWI Reverse encoding distortion correction DWI