10 Network Metrics – Intradepartmental Consultation Analysis

10.1 Top Nodes by Interaction Volume

Top 10 Nodes by Total Interaction Strength
Node	In Degree	Out Degree	In Strength	Out Strength	Betweenness	Eigenvector
P8	27	17	348	754	0.098	0.370
P2	26	20	684	275	0.224	0.976
P5	29	19	751	176	0.212	1.000
P9	28	22	696	194	0.111	0.720
P13	14	20	68	684	0.033	0.156
P11	25	18	521	171	0.033	0.406
P10	19	20	216	434	0.074	0.366
P21	22	17	399	197	0.064	0.601
P17	22	16	362	207	0.118	0.601
P23	24	16	407	116	0.017	0.520

Interpretation

This table ranks pathologists by total interaction volume – the sum of consultations they requested (Out Strength) and received (In Strength). Pathologists at the top of this list are the most active participants in the consultation network. A high In Strength suggests someone frequently consulted for their expertise, while a high Out Strength indicates someone who frequently seeks peer input on their cases.

10.2 Routing Importance (Betweenness)

Top 10 Nodes by Betweenness Centrality
Node	In Degree	Out Degree	In Strength	Out Strength	Betweenness	Eigenvector
P2	26	20	684	275	0.2235	0.9762
P5	29	19	751	176	0.2118	1.0000
P17	22	16	362	207	0.1185	0.6009
P9	28	22	696	194	0.1115	0.7201
P8	27	17	348	754	0.0983	0.3698
P19	22	16	227	131	0.0790	0.2861
P10	19	20	216	434	0.0739	0.3655
P21	22	17	399	197	0.0639	0.6006
P27	17	18	94	133	0.0471	0.0992
P18	23	24	82	319	0.0451	0.0945

Interpretation

Betweenness centrality measures how often a pathologist acts as a “bridge” between other colleagues in the consultation network. A high betweenness score means that many consultation paths pass through this person, making them a key connector. If such a pathologist were absent, consultation flow between other team members could be disrupted.

10.3 Reciprocity

Network Reciprocity
Metric	Value
Reciprocity (share of mutual Asker↔︎Responder ties)	0.525

Interpretation

Reciprocity measures how often consultation relationships are bidirectional – that is, if pathologist A consults pathologist B, how often does B also consult A? A high reciprocity value (close to 1) indicates mutual consultation relationships, while a low value suggests a more hierarchical pattern where certain pathologists primarily give opinions while others primarily request them.