. Author manuscript; available in PMC: 2018 Jul 1.

Published in final edited form as: Catheter Cardiovasc Interv. 2016 Nov 10;90(1):23–30. doi: 10.1002/ccd.26844

Table 3.

Procedural Characteristic of CTO PCO according to lesion location

	Overall	Proximal	Mid	Distal	P
Contrast volume (ml)	260 (200, 360)	275 (200, 375)	260 (200, 350)	250 (175, 350)	0.01
Fluorosccopy time (min)	45 (27, 74)	53 (32, 83)	39 (24, 65)	40 (22, 72)	<0.001
Air kerma dose (Gy)	3.5 (2.1, 5.5)	4.0 (2.3, 5.9)	3.2 (1.9, 4.8)	3.4 (1.8, 5.4)	<0.001
Procedure time (min)	129 (88, 193)	145 (98, 211)	123 (83, 174)	123 (72, 191)	<0.001
VUS used (%)	37	43	36	28	0.01
Procedural success (%)	88	87	90	85	0.14
LVAD used (%)	5	7	4	4	0.10
Stent length (mm)*	66±42	61±48	69±35	74±42	<0.001
Maximal stent diameter (mm)^*	3.1±0.5	3.2±0.5	3.0±0.5	3.0±0.6	<0.001

IVUS: intravascular ultrasound, LVAD: left ventricular assist device

Values are mean +/− standard deviation or median (interquartile range)