Table 3.

Lesion- and patient-based analysis of all MRI sequences and DWI in evaluation of metastases from malignant melanoma, compared to CT images.

	Lesion-based analysis						Patient-based analysis
	DWI			All MRI sequencesa			DWI			All MRI sequencesa
Site of metastases	TP	FP	FN	TP	FP	FN	TP	FP	FN	TP	FP	FN
Liver	81%	0	19%	90%	0	10%	100%	0	0	100%	0	0
Spleen	0	0	100%	100%	0	0	0	0	100%	100%	0	0
Lung	47%	0	53%	63%	0	37%	68%	0	32%	81%	0	19%
Lymph nodes in thorax	48%	0	52%	62%	0	38%	77%	0	23%	92%	0	8%
Lymph nodes in abdomen	100%	0	0	100%	0	0	100%	0	0	100%	0	0
Axillary lymph nodes	100%	0	0	100%	0	0	100%	0	0	100%	0	0
Subcutaneous metastases	100%	0	0	100%	0	0	100%	0	0	100%	0	0

^aT1W, T2-STIR, and DWI.

DWI = Diffusion-weighted imaging; TP = True-positive; FP = False-positive; FN = False-negative.