کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5427944 | 1508650 | 2015 | 11 صفحه PDF | دانلود رایگان |
- We detect tumor-like inclusions embedded within a (2D/3D) human liver tissue model.
- The technique is based on a short-pulsed near-infrared laser beam.
- We solve the (2D/3D) time-dependent RTE, with multithreaded parallel computing.
- The presence of one or two circular/spherical inclusions is analyzed.
- The results allows a minimal size and a maximum distance for the detection.
An efficient solution to detect tumor-like inclusions embedded within a human liver tissue model is presented, using illumination by a short-pulsed laser beam. Light propagation was accurately solved using the time-dependent radiative transfer equation, with multithreaded parallel computing. A modified finite volume method based on unstructured grids and the fourth-order Runge-Kutta approach was employed to solve the equation in the (2-D/3-D) spatial and time domains. The normalization technique applied to the Henyey-Greenstein phase function was adopted to ensure numerical stability for values of the anisotropy factor that were close to unity. The presence of one or two circular/spherical inclusions was analyzed from the time and spatially resolved reflectance on the medium bounding surface. The results allowed a minimal size and a maximum distance for the detection of the inclusion to be highlighted.
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 165, November 2015, Pages 1-11