Quantitative analysis of synchrotron radiation intravenous angiographic images

Anna Sarnelli, Christian Nemoz, Hélène Elleaume, François Estève, Bernard Bertrand, Alberto Bravin

Research output: Contribution to journalArticlepeer-review

Abstract

A medical research protocol on clinical intravenous coronary angiography has been completed at the European Synchrotron Radiation Facility (ESRF) biomedical beamline. The aim was to investigate the accuracy of intravenous coronary angiography based on the K-edge digital subtraction technique for the detection of in-stent restenosis. For each patient, diagnosis has been performed on the synchrotron radiation images and monitored with the conventional selective coronary angiography method taken as the golden standard. In this paper, the methods of image processing and the results of the quantitative analysis are described. Image processing includes beam harmonic contamination correction, spatial deconvolution and the extraction of a 'contrast' and a 'tissue' image from each couple of radiograms simultaneously acquired at energies bracketing the K-edge of iodine. Quantitative analysis includes the estimation of the vessel diameter, the calculation of the absolute iodine concentration profiles along the coronary arteries and the stenosis degree measurement.

Original languageEnglish
Pages (from-to)725-740
Number of pages16
JournalPhysics in Medicine and Biology
Volume50
Issue number4
DOIs
Publication statusPublished - Feb 21 2005

ASJC Scopus subject areas

  • Biomedical Engineering
  • Physics and Astronomy (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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