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Simulation Study of Breast Tissue Hemodynamics During Pressure Perturbation

  • Shoko Nioka
  • Simon Wen
  • Jun Zhang
  • Juan Du
  • Xavior Intes
  • Zhongyao Zhao
  • Britton Chance
Conference paper
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 566)

Abstract

We simulated the effects of compression of the breast on blood volume and tissue oxygenation. We sought to answer the question: how does the compression during breast examination impact on the circulatory systems of the breast tissue, namely blood flow, blood pooling, and oxygen concentration? We assumed that the blood was distributed in two compartments, arterial and venous. All the parameters were expressed with oxy- and deoxyhemoglobin quantities and were measured with a non-invasive method, Near Infrared Spectroscopy (NIRS). The simulated data showed that the blood volume pool in the breast decreased due to lower arterial flow and higher venous outflow, as the breast was squeezed under 100 cm H2O with a 10 cm diameter probe (or 78 cm2). The blood volume was reversed when the pressure was released. The breast venous oxygen saturation dropped, but overall tissue saturation (presenting NIRS signal, volume weighted average saturation) was increased. The results showed that simulation can be used to obtain venous and average oxygen saturation as well as blood flow in compressed breast tissues.

Keywords

Blood Volume Breast Tissue Near Infrared Spectroscopy Arterial Blood Volume Tissue Saturation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Shoko Nioka
  • Simon Wen
  • Jun Zhang
  • Juan Du
  • Xavior Intes
  • Zhongyao Zhao
  • Britton Chance

There are no affiliations available

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