Table 3.

Number of features grouped by inter-observer agreement and underlying parameter map and contour shape feature type. Reproducibility thresholds were adopted from Koo and Li (25). The majority of the features show an excellent or good agreement for all parameter maps.

Parameter map	Throughflow	WPD	Angle	N-Helicity	Vorticity	Shape
Excellent	53	65	65	42	47	11
Good	20	13	12	17	21	1
Moderate	3	1	2	19	11	3
Poor	3	0	0	1	0	1
Total features	79	79	79	79	79	16