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Post-mortem thermal angiography: a pilot study on swine coronary circulation

  • Paolo Fais
  • Maria Carla Mazzotti
  • Massimo Montisci
  • Chiara Palazzo
  • Ornella Leone
  • Giovanni Cecchetto
  • Guido Viel
  • Susi Pelotti
Method Paper

Abstract

Thermal imaging (TI) allows the detection of thermal patterns emitted from objects as a function of their temperature in the long-infrared spectrum and produces visible images displaying temperature differences. The aim of this pilot study was to test TI to visualize the coronary circulation of swine hearts. Thirty swine hearts were prepared for ex situ coronarography, and thermal images were acquired through a FlirOne thermal camera (FLIR Systems®) paired with a Google Android Smartphone. Coronary arteries were cannulated, namely the anterior interventricular artery, the circumflex branch of the left coronary artery, and the right coronary artery. The heart was cooled, and contrast medium (CM) consisting of distilled water heated to 40 °C was injected in a coronary vessel, while thermal images were captured. These steps were repeated for each coronary vessel and under experimentally simulated coronary heart disease. Thermal imaging coronarography (TIC) allowed a clear representation of the morphology and course of the coronary vessels and of experimentally simulated coronary heart disease, moreover, demonstrated to be easy to perform during or after autopsies on ex situ hearts, non-destructive, reproducible, and cheap. On the basis of these preliminary results, TIC might allow a subsequent more focused and comprehensive cardiopathological examination of the heart, which remains mandatory for the definitive diagnosis of coronary heart disease. Although these preliminary results seem encouraging, further systematic studies on human hearts, both normal and pathological, are necessary for estimating the sensitivity and specificity of the proposed method and to draw any definitive conclusion.

Keywords

Thermal imaging Post-mortem coronarography Cardiopathology Post-mortem imaging Ex situ coronarography 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.DIMEC, Department of Medical and Surgical SciencesUniversity of BolognaBolognaItaly
  2. 2.Legal Medicine and ToxicologyUniversity Hospital of PadovaPadovaItaly
  3. 3.Department of PathologySant’Orsola-Malpighi University HospitalBolognaItaly

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