Table 8.

Performance of the LNSM broken down by station number and scan type (contrast-enhanced, no contrast)

	TNM Regional nodal station number
	1–2	3	4	5	6	7	8	9	10–11	12–14	Total
Contrast-enhanced (16 scans)
Nc	49	53	100	24	38	26	8	6	39	29	372
Nm	2	3	0	0	5	0	4	1	3	0	18
Ng	51	56	100	24	43	26	12	7	42	29	390
%	96%	95%	100%	100%	88%	100%	67%	86%	93%	100%	95%
No contrast (16 scans)
Nc	44	65	147	33	48	34	21	10	35	7	444
Nm	0	10	0	0	0	0	2	2	3	1	18
Ng	44	75	147	33	48	34	23	12	38	8	462
%	100%	87%	100%	100%	100%	100%	91%	83%	92%	88%	96%
All 32 scans
Nc	93	118	247	57	86	60	29	16	75	36	816
Nm	2	13	0	0	5	0	6	3	6	1	36
Ng	95	131	247	57	91	60	35	19	80	37	852
%	98%	90%	100%	100%	95%	100%	83%	84%	93%	97%	96%
Station success
Ns	31	26	32	32	30	32	28	30	27	31	299
%	97%	81%	100%	100%	94%	100%	88%	94%	84%	97%	93%

The following quantities were computed as an aggregate over 32 scans: N_c = total number of nodes covered by LNSM’s automatically defined stations. N_m = total number of nodes missed by LNSM’s stations. N_g = total number of ground-truth database nodes in indicated station. N_s = number of scans where LNSM gave 100% nodal coverage. Finally, % gives percentage measures, whereby % = 100 × N_c/N_g or 100 × N_s/32