Chest pain other diagnostic studies

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Aisha Adigun, B.Sc., M.D.[2]

Overview

Invasive Coronary AngiographyInvasive  coronary  angiography  (ICA)  defines  the  pres-ence and severity of a luminal obstruction of an epicar-dial  coronary  artery,  including  its  location,  length,  and  diameter, as well as coronary blood flow.1,2 For ICA, the primary  goal  is  the  characterization  and  detection  of  a  high-grade obstructive stenosis to define feasibility and necessity  of  percutaneous  or  surgical  revascularization.  The  use  of  physiologic  indices  (IFR  and  FFR)  provides  complementary  functional  information.1  Radiation  expo-sure  to  the  patient  during  an  interventional  procedure  averages 4 to 10 mSv and is dependent on procedural duration and complexity.3,4ICA has a spatial resolution of 0.3 mm; as such, it is impossible  to  visualize  arterioles  (diameter  of  0.1  mm)  that  regulate  myocardial  blood  flow.5  Coronary  vascular  functional  studies  can  be  performed  during  coronary  angiography.   Normal   angiography   does   not   exclude   abnormal  coronary  vascular  function,  and  it  is  possible  to  assess  coronary  microcirculation  and  coronary  vaso-motion. Coronary function testing may assist in

Other Diagnostic Studies

  • Patients who are suspected to have coronary artery disease may require stress testing or angiography to visualize their coronary arteries.
  • Peak flow studies and pulmonary function tests may be indicated for patients requiring further evaluation of lung function.


References