Anatomy & Cell Biology

Table 2

Mean and standard deviation of horizontal diameters of pulmonary vein ostia

Group	PV	Horizontal ostium diameter (mm)
Group	PV	Mean	SD	Minimum	Maximum
Classical 4 PV pattern	Left superior	14.41	1.40	10.39	17.10
	Left inferior	13.03	1.54	9.70	16.66
	Right superior	15.73	2.48	7.98	20.21
	Right inferior	14.64	2.64	9.47	22.49
Additional middle right PV pattern	Left superior	14.99	3.10	10.47	19.02
	Left inferior	13.55	1.82	11.07	16.80
	Right superior	12.65	1.63	9.89	15.94
	Right inferior	12.79	2.20	10.17	17.74
	Additional right middle	7.95	1.69	5.29	10.01
Left common PV pattern	Common left	18.63	3.76	15.69	25.61
	Right superior	16.02	1.03	14.97	17.24
	Right inferior	13.56	2.02	10.39	15.52
Left common PV with additional right middle PV pattern	Common left	17.63	0.23	17.35	17.91
	Right superior	13.06	0.65	12.59	13.90
	Right inferior	12.15	0.88	11.17	13.18
	Additional right middle	6.08	0.75	5.18	6.89

PV, pulmonary vein.