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Table 2: Additional information of postcontrast 3D MR images compared with postcontrast 2D T1-weighted images for the conspicuity of leptomeningeal enhancement
Grade 3D T2-FLAIR MPRAGE
Radiologist 1 Radiologist 2 Radiologist 1 Radiologist 2
3 9 10 2 1
2 1 0 3 5
1 0 0 3 1
0 2 2 4 5
Mean ± SD 2.42 ± 1.17^a 2.50 ± 1.17^b 1.25 ± 1.14^a 1.17 ± 1.12

Note:—Data are the number of patients. See Image Evaluation in Materials and Methods for delineation of grades in the 4-point scoring system.


a P < .05;


b P < .01.

Grade	3D T2-FLAIR		MPRAGE
Grade	Radiologist 1	Radiologist 2	Radiologist 1	Radiologist 2
3	9	10	2	1
2	1	0	3	5
1	0	0	3	1
0	2	2	4	5
Mean ± SD	2.42 ± 1.17^a	2.50 ± 1.17^b	1.25 ± 1.14^a	1.17 ± 1.12