The role of combined diffusion weighted imaging and magnetic resonance cholangiopancreatography in the differential diagnosis of obstructive biliary disorders

Egyptian Journal of Radiology and Nuclear Medicine

Table 7 Comparison between the two studied groups according to the diffusion restriction on DWI and ADC map

	Total (n=60)		Benign (n=34)		Malignant (n=26)		Test of sig.	P
	No.	%	No.	%	No.	%	Test of sig.	P
Restriction on DWI
−ve	36	60.0	34	100.0	2	7.7	χ² = 52.308^*	< 0.001^*
+ve	24	40.0	0	0.0	24	92.3	χ² = 52.308^*	< 0.001^*