Evaluation of Contrast Extravasation as a Diagnostic Criterion in the Evaluation of Arthroscopically Proven HAGL/pHAGL Lesions

Table 2

To measure the agreement between reader 1 and reader 2 in interpreting extravasation to any site, and to a particular site, kappa statistic was used, with excellent agreement between readers amongst all sites of extravasation. Excellent agreement was defined as Kappa > 0.81 [1].

	Extravasation to any site	Juxtahumeral space	Quadrilateral space	Paramuscular space	Intramuscular space
Kappa (reader 1, reader 2)	1	1	0.833	1	1