title: Clinical use of optical coherence tomography and fractional flow reserve.
abstract: BACKGROUND
  The aim of each diagnostic method is to serve as a guide in deciding about the right patient treatment. During myocardial revascularization the decision to perform revascularization is usually not easy to make, especially in case of borderline stenosis. It has been proven that it is not enough to base morphological evaluation of coronary artery vessel stenosis solely on angiography. It is necessary to include additional modern diagnostic methods for functional analysis and detailed morphological analysis using fractional flow reserve (FFR) and optical coherence tomography (OCT), respectively.
  
  
  METHODS
  In the first case report we showed the significance of morphological analysis using OCT and proved that it was not lumen stenosis. The second and the third case reports showed the complementarity between functional analysis (FFR) and morphological analysis (OCT) of stenosis in solving a complex coronary disease. The fourth case report showed the significance of OCT in dealing with the recurrent stent restenosis.
  
  
  CONCLUSIONS
  By these short case reports we confirmed that percutaneous coronary intervention (PCI) guided by angiography is definitely not enough in deciding about myocardial revascularization especially in patients with a complex coronary disease. In certain cases FFR and OCT procedures can be complementary methods and improve quality of revascularization, particularly in case of recurrent in-stent restenosis.
authors: Vladimir
authors: V
authors: Ivanović
authors: Milovan
authors: M
authors: Petrović
authors: Milenko
authors: M
authors: Canković
authors: Anastazija
authors: A
authors: Stojsić-Milosavljević
authors: Snezana
authors: S
authors: Cemerlić
mesh_terms: D054058:Acute Coronary Syndrome / Q000175:diagnosis* / Q000601:surgery; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000175:diagnosis* / Q000601:surgery; D023903:Coronary Restenosis / Q000175:diagnosis* / Q000601:surgery; D023921:Coronary Stenosis / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D053805:Fractional Flow Reserve, Myocardial; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000601:surgery; D062645:Percutaneous Coronary Intervention; D015607:Stents; D041623:Tomography, Optical Coherence