Clinical comparative analysis of 3D printing-assisted extracorporeal pre-fenestration and Castor integrated branch stent techniques in treating type B aortic dissections with inadequate proximal landing zones

Table 3 Two groups of different aortic plane true and false lumen diameter change rate

Plane	Change rate	3D-Printing group (n = 44)	Castor stent group (n = 40)	P
L1	R(DTL)	55.90 ± 26.77	66.79 ± 45.71	0.191
L1	R(DFL)	-71.53 ± 25.59	-69.20 ± 22.92	0.5
L2	R(DTL)	72.64 ± 35.49	76.97 ± 69.04	0.936
L2	R(DFL)	-78.69 ± 22.17	-70.34 ± 24.30	0.125
L3	R(DTL)	69.82 ± 34.32	68.36 ± 46.76	0.531
L3	R(DFL)	-71.40 ± 31.34	-71.99 ± 23.47	0.49

R(DTL) is the rate of true lumen diameter expansion, R(DFL) is the rate of false lumen diameter expansion, rate of true and false lumen diameter expansion = (postoperative true and false lumen diameter – preoperative true and false lumen diameter) / preoperative true and false lumen diameter × 100%

ISSN: 1471-2261