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Assessment of bone mineral density: A comparative pilot study with quantitative computed tomography (QCT) and quantitative ultrasound (QUS)

David, Leena R Assessment of bone mineral density: A comparative pilot study with quantitative computed tomography (QCT) and quantitative ultrasound (QUS). In: 11th National Conference of Indian Association of Radiological Technologists, 22-24 Nov 2013, AIIMS, New Delhi. (Submitted)

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Abstract

The bones are the important components which leverage and provide support to the human body. So monitoring changes in the bone is very essential. Osteoporosis is a major worldwide metabolic bone disorder which has marked therapeutic and economic implications. WHO defines Osteoporosis as a Skeletal disease characterized by low bone mass and micro architectural deterioration of bone tissue, with a consequent increase in bone fragility and susceptibility to fracture . QCT, with the help of BMD Analysis software, the patients muscle and fat tissue will be taken as internal reference materials to calculate CT numbers of trabecular bone. The fat and muscle are generally found close to the trabecular bone of the spine, which helps to minimize the geometrical errors associated with the use of an external phantom as like in phantom QCT. QUS, It calculates bone properties without the application of ionizing radiation. This is based on the speed of Ultrasonic waves propagating along the bone. It measures the distance btween 2 points and the time required for the sound wave to travel between these two points. Faster speed correlate with greater bone density and trength i.e fracture resistance. This is a study which is done to diagnose osteoporosis with these 2 modalities i e QCT (Philips Brilliance64 slice CT with EBW 4.5 Version having QCT software) and QUS (Ultrasound Sunlight Omnisense 8000S). The main objectives of the study are : 1. Compare the diagnosis of Osteoporosis with QUS & QCT 2. To confirm whether both the modalities can be used complementarily or not.

Item Type: Conference or Workshop Item (Paper)
Subjects: Allied Health > MCOAHS Manipal > Medical Imaging Tech
Depositing User: KMC Manipal
Date Deposited: 16 Dec 2013 04:03
Last Modified: 16 Dec 2013 04:03
URI: http://eprints.manipal.edu/id/eprint/137979

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