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Comparison between measured and calculated length of side branch ostium in coronary bifurcation lesions with intravascular ultrasound

Title
 Comparison between measured and calculated length of side branch ostium in coronary bifurcation lesions with intravascular ultrasound 
Authors
 Hyeon Min Ryu ; Byeong-Keuk Kim ; Myeong-Ki Hong ; Yangsoo Jang ; Donghoon Choi ; Young-Guk Ko, ; Jung-Sun Kim 
Issue Date
2012
Journal Title
 Yonsei Medical Journal 
ISSN
 0513-5796 
Citation
 Yonsei Medical Journal, Vol.53(4) : 680~684, 2012 
Abstract
PURPOSE: Accurate evaluation of side branch (SB) ostium could be critical to the treatment of bifurcation lesions. We compared measured and calculated values of side branch ostial length (SBOL) in coronary bifurcation lesions with intravascular ultrasound (IVUS). MATERIALS AND METHODS: Pre-intervention and post-intervention IVUS was performed in 113 patients who underwent stent implantation of bifurcation lesions. For the IVUS longitudinal reconstruction of the bifurcation lesions, SBOL, SB diameter, and the angle between the distal portion of the main vessel (MV) and SB were directly measured. In addition, SBOL was calculated as: SB diameter/ sin (angle between distal MV and SB). The relationship between measured and calculated SBOL was then evaluated. RESULTS: The angled between the distal MV and SB were 57.3±12.4° at pre-intervention and 59.4±12.6° at post-intervention. The mean measured and calculated SBOL values were 2.91±0.86 mm and 3.06±0.77 mm at pre-intervention and 2.79±0.82 mm and 2.92±0.69 mm at post-intervention, respectively. Differences between measured and calculated SBOL were 0.15±0.44 mm at pre-intervention and 0.13±0.41 mm at post-intervention. We found that calculated SBOL was correlated with measured SBOL (pre-intervention r=0.863, p<0.001; post-intervention r=0.868, p<0.001). CONCLUSION: There was a good correlation between measured and calculated SBOLs of the bifurcation lesions in IVUS longitudinal reconstruction. SBOL in the bifurcation lesions can therefore be estimated using the SB diameter and the angle between distal MV and SB.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/92093
DOI
10.3349/ymj.2012.53.4.680
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
Yonsei Authors
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