Diagnostic utility of 3D DIR MRI in the estimation of MS lesions overall load with special emphasis on cortical subtypes

Egyptian Journal of Radiology and Nuclear Medicine

Table 2 MS plaques load in the different anatomical regions by 3D DIR and FLAIR sequences

Anatomical region	3D DIR	FLAIR	% improvement	Z	p value
Cortical type I	293	158	185	− 6.885	< 0.001*
Cortical type II	356	152	234	− 6.767	< 0.001*
Cortical type III	31	12	258	− 3.578	< 0.001*
Cortical type IV	73	48	152	− 3.917	< 0.001*
Overall cortical types	753	370	204	− 7.612	< 0.001*
Juxtacortical	306	257	119	− 2.570	0.010*
Juxtacortical Expanded	1059	627	169	− 7.562	< 0.001*
Periventricular WM	925	804	115	− 4.311	< 0.001*
Deep WM	1100	1072	103	− 0.947	0.344
Subcortical WM	348	311	112	− 2.074	0.038*
Infratentorial	282	215	131	− 5.446	< 0.001*
Deep gray matter	145	128	113	− 1.627	0.104
Overall MS burden	3859	3157	122	− 7.659	< 0.001*