. 2021 Aug 25;8(9):729. doi: 10.3390/children8090729

Table 2.

Data from Pt2 used to compute wall shear stress at the confluences of the pulmonary veins with the left atrium. Columns, from left to right, are age in months at time of CT scan, body surface area (BSA) in m², cardiac index (CI) in L/min/m², pulmonary to systemic blood flow ratio (Q_P:Q_S), left to right lung blood flow ratio, dimensions of pulmonary vein confluence at its narrowest point (major diameter, 2a, and minor diameter 2b, in mm), maximum wall shear stress, corresponding to minor diameter b (τ), Reynold’s number (dimensionless), and estimated diameter of pulmonary vein segment necessary to reduce wall shear stress to 10 dyn/cm² (d_{τ = 10}).

Age Months	BSA m²	CI L/min/m²	Q_p:Q_s	Q_L/Q_R	2a mm	2b mm	τ dyn/cm²	R_e	d_τ=10 mm
6	0.28	3.2	2.6	80/20	5.2	2.1	241	1554	8.2	LUPV
					5.1	3.9	71	1312	8.2	LLPV
					1.8	1.8	475	1648	6.5	RLPV
10	0.33	3.3	1.0	52/48	4.2	2.0	100	564	5.5	LUPV
					5.2	2.0	40	435	5.5	LLPV
					4.3	3.0	80	905	6.8	RLPV
17	0.39	4.2	1.0	52/48	2.9	2.0	218	1097	6.3	LUPV
					5.6	2.8	58	628	6.3	LLPV
					4.9	3.7	70	1158	7.8	RLPV
22	0.42	5.2	0.8	44/56	-	-	-	-	-	LUPV
					4.3	2.8	135	1363	7.7	LLPV
					5.0	4.5	57	1310	8.3	RLPV
27	0.45	4.1	1.0	37/63	-	-	-	-	-	LUPV
					3.2	2.7	174	1471	7.4	LLPV
					5.8	4.7	54	1406	8.8	RLPV
					-	-	-	-	-	LUPV
34	0.48	3.0	1.0	34/66	2.5	2.5	186	1247	6.6	LLPV
					5.9	4.6	45	1148	8.3	RLPV
					-	-	-	-	-	LUPV
41	0.52	2.9	1.0	39/61	3.1	2.1	256	1427	7.0	LLPV
					6.0	2.3	172	1344	8.2	RLPV
					-	-	-	-	-	LUPV
47	0.55	3.1	1.0	35/65	4.0	2.9	105	1094	7.1	LLPV
					7.1	3.9	61	1256	8.7	RLPV
					-	-	-	-	-	LUPV
57	0.64	3.0	1.0	35/65	7.2	7.0	11	603	7.4	LLPV
					7.5	4.3	53	1322	9.1	RLPV
					-	-	-	-	-	LUPV
132	1.36	3.1	1.0	49/51	10.0	8.6	17	1412	10.7	LLPV
					10.4	6.6	28	1591	10.9	RLPV