title: A novel 3-d reconstruction system for the assessment of bifurcation lesions treated by the mini-crush technique.
abstract: BACKGROUND
  Conventional two-dimensional angiography lacks the ability to properly image the true bifurcation geometry, and its percutaneous coronary intervention-induced changes in the clinical setting.
  
  
  RESULTS
  A novel three-dimensional reconstruction system was investigated by retrospectively analyzing 39 lesions in 35 consecutive patients with coronary bifurcation disease treated with the mini-crush technique. At baseline, significant correlations were proved between two- and three-dimensional systems in terms of either reference vessel diameter (R(2)= 0.68 and 0.29 for main and side branches, respectively), minimum lumen diameter (R(2)= 0.73 and 0.36), stenosis diameter (R(2)= 0.69 and 0.29), and lesion length (R(2)= 0.48 and 0.58). These results were consistent with those observed after the procedure and at 8-month follow-up. Lesion length was significantly longer with the three-dimensional compared to the two-dimensional system for both main and side branches (P < 0.001, and P = 0.007, respectively).
  
  
  CONCLUSIONS
  The three-dimensional quantitative reconstruction system may provide accurate evaluation of the complex curvilinear structure of bifurcation lesions when using a double stent technique.
authors.affiliation: Department of Internal Medicine and Systemic Disease, Clinical Division of Cardiology, Ferrarotto Hospital, University of Catania, Italy. argalassi@virgilio.it
authors.forename: Alfredo R
authors.initials: AR
authors.lastname: Galassi
authors.forename: Salvatore D
authors.initials: SD
authors.lastname: Tomasello
authors.forename: Davide
authors.initials: D
authors.lastname: Capodanno
authors.forename: Dario
authors.initials: D
authors.lastname: Seminara
authors.forename: Luciana
authors.initials: L
authors.lastname: Canonico
authors.forename: Michele
authors.initials: M
authors.lastname: Occhipinti
authors.forename: Corrado
authors.initials: C
authors.lastname: Tamburino
mesh_terms: D000465:Algorithms; D000704:Analysis of Variance; D015906:Angioplasty, Balloon, Coronary / Q000379:methods*; D017023:Coronary Angiography / Q000295:instrumentation* / Q000379:methods; D001026:Coronary Artery Bypass; D003324:Coronary Artery Disease / Q000175:diagnosis / Q000628:therapy; D023903:Coronary Restenosis / Q000175:diagnosis / Q000601:surgery / Q000628:therapy*; D003331:Coronary Vessels / Q000473:pathology; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation* / Q000379:methods; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012984:Software; D013223:Statistics as Topic; D018709:Statistics, Nonparametric; D013318:Stroke Volume; D013997:Time Factors; D016277:Ventricular Function, Left