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Using Voxel Count Measurements Based On X-Ray Attenuation Coefficient Principle to Estimate Organ Volume during CT Scan
- Source :
- International Journal of Scientific Research in Science, Engineering and Technology. :653-659
- Publication Year :
- 2017
- Publisher :
- Technoscience Academy, 2017.
-
Abstract
- 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.
- Subjects :
- Physics
medicine.medical_specialty
medicine.diagnostic_test
Gamma ray
X ray attenuation
Computed tomography
computer.software_genre
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Nuclear magnetic resonance
Voxel
030220 oncology & carcinogenesis
Attenuation coefficient
medicine
Medical physics
computer
Organ Volume
Subjects
Details
- ISSN :
- 23944099 and 23951990
- Database :
- OpenAIRE
- Journal :
- International Journal of Scientific Research in Science, Engineering and Technology
- Accession number :
- edsair.doi...........7f4f7016546bece96c46493d18a105f7
- Full Text :
- https://doi.org/10.32628/ijsrset1733145