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Application of Bone Fracture Evaluation Using A-Mode Ultrasound System

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Author(s): G Vijay Kumar | Dr. G.V Raju | P NarendraBabu | G V GeethaMadhavi

Journal: International Journal of Advanced Research in Computer Science
ISSN 0976-5697

Volume: 04;
Issue: 05;
Start page: 23;
Date: 2013;
Original page

Keywords: Bone | fracture | 1D | ultrasound | attenuation

ABSTRACT
This paper presents a novel method of bone fracture evaluation based on A-Mode ultrasound. Utilising the pulse echo method, the attenuation of 1 MHz ultrasound wave propagating through a normal and fractured bone was investigated. Two types of bone fracture were investigated, namely the linear fracture and comminuted fracture. An ultrasound transducer was used to transmit the sound wave to the normal and fractured bone in the body, simulated using a goat’s bone encased in gelatine. The transducer then captured the reflected echoes to be viewed via an oscilloscope. The echo signal indicated the time used by the sound wave to travel back and forth from the bone surface. The echo was filtered and the power spectral density was calculated for attenuation measurement based on insertion loss method. The comparison of power spectral density from a normal and fractured bone showed that average signal power on the fractured bone was lower than the normal bone by 4.3dB for both linear and comminuted fractures. Based on the result, the ultrasound signal attenuation showed a potential for use to detect bone fracture; nevertheless, further studies are still needed to determine the type of fractures. The present finding shows the potential of ultrasound in diagnosing bone fracture as an adjunct to x-ray imaging.
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