Whole-body magnetic resonance imaging provides accurate staging of diffuse large B-cell lymphoma, but is less preferred by patients

Table 3 Whole body magnetic resonance imaging and fluorodeoxyglucose positron emission tomography/computed tomography results

	wbMRI, n	PET/CT, n	TP, n	FP, n	TN, n	FN, n	Senz.	Spec.	PPV	NPV	Acc
Nodal
Waldeyer ring	1	1	1	0	13	0	1.00	1.00	1.00	1.00	1.00
Cervical and supraclavicular	3	3	3	0	11	0	1.00	1.00	1.00	1.00	1.00
Axillary (R)	1	1	1	0	13	0	1.00	1.00	1.00	1.00	1.00
Axillary (L)	1	2	1	0	12	1	0.50	1.00	1.00	0.92	0.93
Mediastinal and hilar	1	1	1	0	13	0	1.00	1.00	1.00	1.00	1.00
Epigastric	3	3	3	0	11	0	1.00	1.00	1.00	1.00	1.00
Mesenteric	4	4	4	0	10	0	1.00	1.00	1.00	1.00	1.00
Retroperitoneal	4	5	4	0	9	1	0.80	1.00	1.00	0.90	0.93
Iliac and pelvic (R)	3	4	3	0	10	1	0.75	1.00	1.00	0.91	0.93
Iliac and pelvic (L)	3	4	3	0	10	1	0.75	1.00	1.00	0.91	0.93
Inguinal (R)	2	2	1	1	11	1	0.50	0.92	0.50	0.92	0.86
Inguinal (L)	1	1	1	0	13	0	1.00	1.00	1.00	1.00	1.00
Spleen	1	1	1	0	13	0	1.00	1.00	1.00	1.00	1.00
Lymphatic overall	27	32	27	1	149	5	0.84	0.99	0.96	0.97	0.97
Extranodal1
Bone	5	5	5	0	9	0	1.00	1.00	1.00	1.00	1.00
Bone marrow	4	4	4	0	10	0	1.00	1.00	1.00	1.00	1.00
Soft tissue	4	4	4	0	10	0	1.00	1.00	1.00	1.00	1.00
Lung	1	1	1	0	13	0	1.00	1.00	1.00	1.00	1.00
Pleura	1	1	1	0	13	0	1.00	1.00	1.00	1.00	1.00

¹Multifocal involvement of one system in a patient reported as single finding.

wbMRI: Whole-body magnetic resonance imaging; PET/CT: Positron emission tomography/computed tomography; TP: True positive; FP: False positive; TN: True negative; FN: False negative; Senz: Sensitivity; Spec: Specificity; Acc: Accuracy; PPV: Positive predictive value; NPV: Negative predictive value; R: Right; L: Left.