Cover Image
QR Code

A new Monte Carlo code for light transport in biological tissue.

The aim of this work was to develop an event-by-event Monte Carlo code for light transport (called MCLTmx) to identify and quantify ballistic, diffuse, and absorbed photons, as well as their interaction coordinates inside the biological tissue. The mean free path length was computed between two inte...

Full description

Published in:Medical & Biological Engineering & Computing Vol. 56; no. 4; pp. 649 - 656
Main Authors: Torres-García, Eugenio, Oros-Pantoja, Rigoberto, Aranda-Lara, Liliana, Vieyra-Reyes, Patricia
Format: Journal Article
Published: Springer Nature Apr2018
Online Access:View this record in EBSCOhost
fields @attributes:
  recordID: 1
pdfLink:
plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=128549169&site=ehost-live
header:
  @attributes:
    shortDbName: ccm
    uiTerm: 128549169
    longDbName: CINAHL Complete
    uiTag: AN
  controlInfo:
    bkinfo:
    dissinfo:
    jinfo:
      jid:
        01400118
        PO0
      jtl: Medical & Biological Engineering & Computing
      issn: 01400118
      maglogo: N
    pubinfo:
      dt: Apr2018
      vid: 56
      iid: 4
      pid: 237
      pub: Springer Nature
      place: New York, New York
    artinfo:
      ui:
        128549169
        128549169
        NLM28849546
        10.1007/s11517-017-1713-z
        NLM28849546
        128549169
      ppf: 649
      ppct: 7
      formats:
        fmt:
          – @attributes:
              type: T
          – @attributes:
              type: P
      tig:
        atl: A new Monte Carlo code for light transport in biological tissue.
      aug:
        au:
          Torres-García, Eugenio
          Oros-Pantoja, Rigoberto
          Aranda-Lara, Liliana
          Vieyra-Reyes, Patricia
        affil: Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan s/n esquina Jesús Carranza, Col. Moderna de la Cruz, CP. 50180, Toluca, Estado de Mexico, Mexico
      sug:
        subj:
          Diagnostic Imaging Methods
          Image Processing, Computer Assisted Methods
          Systems Analysis
          Models, Theoretical
          Refractometry
          Scales
      ab: The aim of this work was to develop an event-by-event Monte Carlo code for light transport (called MCLTmx) to identify and quantify ballistic, diffuse, and absorbed photons, as well as their interaction coordinates inside the biological tissue. The mean free path length was computed between two interactions for scattering or absorption processes, and if necessary scatter angles were calculated, until the photon disappeared or went out of region of interest. A three-layer array (air-tissue-air) was used, forming a semi-infinite sandwich. The light source was placed at (0,0,0), emitting towards (0,0,1). The input data were: refractive indices, target thickness (0.02, 0.05, 0.1, 0.5, and 1 cm), number of particle histories, and λ from which the code calculated: anisotropy, scattering, and absorption coefficients. Validation presents differences less than 0.1% compared with that reported in the literature. The MCLTmx code discriminates between ballistic and diffuse photons, and inside of biological tissue, it calculates: specular reflection, diffuse reflection, ballistics transmission, diffuse transmission and absorption, and all parameters dependent on wavelength and thickness. The MCLTmx code can be useful for light transport inside any medium by changing the parameters that describe the new medium: anisotropy, dispersion and attenuation coefficients, and refractive indices for specific wavelength.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
    refInfo:
    holdings:
      @attributes:
        islocal: N