Predictive value of neck imaging reporting and data system (NIRADS) in CECT/CEMRI of laryngeal and oral cavity squamous cell carcinoma

Egyptian Journal of Radiology and Nuclear Medicine

Table 4 Predictive value of the laryngeal SCC primary and nodal neck lesions according to NI-RADS categories

NI-RADS	Recurrence		Fisher’s exact test		Cramér’s (V)		Linear by linear association
NI-RADS	Positive recurrence (PPV%)	Negative recurrence rate (NPV%)	Value	P	Value	P	Value	P
Primary lesion			9.90	0.005	0.486	0.003	10.06	0.002
NI-RADS 1	2/22 (9.1%)	20/22 (90.9%)
NI-RADS 2	5/17 (29.4%)	12/17 (70.6%)
NI-RADS 3	5/7 (71.4%)	2/7 (28.6%)
Total	12/46 (26.1%)	34/46 (73.9%)
LN lesion			9.48	0.012	0.524	< 0.012	12.33	0.006
NI-RADS 1	2/40 (5 %)	38/40 (95 %)
NI-RADS 2	1/3 (33.3%)	2/3 (66.7%)
NI-RADS 3	2/3 (66.7%)	1/3 (33.3%)
Total	5/46 (10.9%)	41/46 (89.1%)
Combined primary and LN			21.61	< 0.000	0.525	< 0.000	24.5	< 0.000
NI-RADS 1	4/62 (6.5%)	58/62 (93.5%)
NI-RADS 2	6/20 (30%)	14/20 (70%)
NI-RADS 3	7/10 (70%)	3/10 (30%)
Total	17/92 (18.5%)	75/92 (81.5%)