Displacement and velocity of the coronary arteries: Cardiac and respiratory motion

Guy Shechter, Jon R. Resar, Elliot R. McVeigh

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents measurements of three-dimensional (3-D) displacements and velocities of the coronary arteries due to the myocardial beating motion and due to breathing. Data were acquired by reconstructing the coronary arteries and their motion from biplane angiograms in 10 patients. A parametric motion model was used to separate the cardiac and breathing motion fields. The arteries move consistently toward the left, inferior, and anterior during a cardiac contraction. The displacement and velocity of the right coronary artery during a cardiac contraction was larger than measured for the left coronary tree. Cardiac motion dominates the respiratory motion of the coronary arteries during spontaneous breathing. On inspiration, the arteries move caudally, but the motion in the left-right and anterior-posterior axes was variable. Spatial variation in respiratory displacement and velocity of the coronary arteries indicates that the breathing motion of the heart is more complex than a 3-D translation.

Original languageEnglish (US)
Pages (from-to)369-375
Number of pages7
JournalIEEE transactions on medical imaging
Volume25
Issue number3
DOIs
StatePublished - Mar 2006

Keywords

  • Chest imaging
  • Coronary arteries
  • Motion
  • X-ray angiography

ASJC Scopus subject areas

  • Software
  • Radiological and Ultrasound Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering

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