Diffuse optical tomography of highly heterogeneous media

Vasilis Ntziachristos, Andreas H. Hielscher, A. G. Yodh, Britton Chance

Research output: Contribution to journalArticlepeer-review


We investigate the performance of diffuse optical tomography to image highly heterogeneous media, such as breast tissue, as a function of background heterogeneity. To model the background heterogeneity, we have employed the functional information derived from Gadolinium-enhanced magnetic resonance images of the breast. We demonstrate that overall image quality and quantification accuracy worsens as the background heterogeneity increases. Furthermore we confirm the appearance of characteristic artifacts at the boundaries that scale with background heterogeneity. These artifacts are very similar to the ones seen in clinical examinations and can be misinterpreted as actual objects if not accounted for. To eliminate the artifacts and improve the overall image reconstruction, we apply a data-correction algorithm that yields superior reconstruction results and is virtually independent of the degree of the background heterogeneity.

Original languageEnglish (US)
Pages (from-to)470-478
Number of pages9
JournalIEEE Transactions on Medical Imaging
Issue number6
StatePublished - Jun 2001


  • Artifacts
  • Correction
  • Diffuse media
  • Diffuse optical tomography
  • Reconstruction

ASJC Scopus subject areas

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


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