Medical Journal of The Islamic Republic of Iran (MJIRI)
Iran University of Medical Sciences
Thu, Dec 5, 2024
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Volume 16, Issue 4 (2-2003)
Med J Islam Repub Iran 2003 |
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TAVAKOLI M. THEORETICAL MODELS FOR DETERMINING THE VELOCITY OF ULTRASOUND IN BONE AND BONE SAMPLES. Med J Islam Repub Iran 2003; 16 (4) :221-225
URL: http://mjiri.iums.ac.ir/article-1-736-en.html
URL: http://mjiri.iums.ac.ir/article-1-736-en.html
From the Department of Medical Physics and Medical Engineering, School of Medicine, Isfahan
Abstract: (3895 Views)
Currently available non-invasive clinical methods for diagnosing osteoporosis
are mainly associated with ionizing radiation. Ultrasonic assessment of bone disease
is a more recent technology. A theoretical explanation for the relationship between
ultrasonic parameters and bone structure is necessary.
Thus, two types of bone samples of perspex (HAP) and perspex-glass beads
were produced. Each type was made with a different fraction of constituents. The
ultrasonic properties of these samples were measured.
The results of velocity measurement showed rise of velocity in the samples
when the volume fraction of the HPA or glass beads increased with a different
trend.
A theoretical model for the velocity in a composite material was developed
and the results of the two samples were used to test the model. The results showed
a good agreement for the perspex-glass bead sample at different volume fraction,
while the agreement between perspex-HAP was not as good as the other sample.
Type of Study: Original Research: Basic Science in Medicine |
Subject:
Medical Physics and Radiation Therapy
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