Using Voxel Count Measurements Based On X-Ray Attenuation Coefficient Principle to Estimate Organ Volume during CT Scan

Authors(4) :-Issahaku Shirazu, Y. B Mensah, Cyril Schandorf, S. Y. Mensah

The study provided a simple method of using voxel count method to estimate organ volume together with x-ray attenuation coefficient principle. The aim is to discuss the role of x-ray attenuation coefficient in CT organ volume measurements using voxel count method. The method involve using the principle of linear attenuation coefficient which describes the fraction of a beam of x-rays or gamma rays that is absorbed or scattered per unit thickness of the absorber to enable tissue differentiation and hence the used of volume elements method, where the body is literally divided into 3-dimensional rectangular boxes with known size and thickness. This value basically accounts for the number of atoms within a specified distance of a material and the probability of a photon being scattered or absorbed from the nucleus or an electron of one of these atoms. A graph of linear attenuation coefficients versus radiation energy are used to separate between various body tissues. At a specific energy the difference in attenuation between two tissues is greatest at a specific radiographic contrast in an image. Hence, this variation enable a separation and subsequent measurements of varied tissues. Therefore, it is extremely useful to determine various linear attenuation coefficients of tissues to enable various variations to be determine for clinical application.

Authors and Affiliations

Issahaku Shirazu
Ghana Atomic Energy Commission, Radiological and Medical Sciences Research Institute, Medical Radiation Physics Center, Accra, Ghana
Y. B Mensah
Graduate School of Nuclear and Allied Sciences, University of Ghana, Legon, Ghana
Cyril Schandorf
University of Ghana Medical School, Department of Radiology, Korle-Bu Teaching Hospital, Accra Ghana
S. Y. Mensah
University of Cape Coast, School of Agriculture and Physical Sciences Faculty of Physical Sciences, Department of Physics, Cape coast, Ghana

X-Ray Attenuation, Voxel Count Method, Linear Attenuation Coefficient, Gamma Rays

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Publication Details

Published in : Volume 3 | Issue 3 | May-June 2017
Date of Publication : 2017-06-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 653-659
Manuscript Number : IJSRSET1733145
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Issahaku Shirazu, Y. B Mensah, Cyril Schandorf, S. Y. Mensah, " Using Voxel Count Measurements Based On X-Ray Attenuation Coefficient Principle to Estimate Organ Volume during CT Scan, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 3, pp.653-659, May-June-2017.
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