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Ultrasound attenuation spectra and r...

Hurst, Katherine Lee.

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Ultrasound attenuation spectra and ratio intensity data in test objects modeling cortical bone: A new technique for early detection of osteoporosis.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Ultrasound attenuation spectra and ratio intensity data in test objects modeling cortical bone: A new technique for early detection of osteoporosis./
作者:	Hurst, Katherine Lee.
面頁冊數:	44 p.
附註:	Source: Masters Abstracts International, Volume: 41-06, page: 1684.
Contained By:	Masters Abstracts International41-06.
標題:	Biophysics, Medical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1414334
ISBN:	0496191238

Ultrasound attenuation spectra and ratio intensity data in test objects modeling cortical bone: A new technique for early detection of osteoporosis.
Hurst, Katherine Lee.

Ultrasound attenuation spectra and ratio intensity data in test objects modeling cortical bone: A new technique for early detection of osteoporosis. - 44 p.

Source: Masters Abstracts International, Volume: 41-06, page: 1684.

Thesis (M.S.)--California State University, Dominguez Hills, 2003.

Current QUS methods to detect BMD focus on cancellous bone whose varying compositions of red and yellow marrow makes readings inaccurate A new QUS technique focuses on the diaphysis of cortical bone and uses the yellow marrow as an impedance mismatch. Test objects of known density were used to emulate cortical bone.

ISBN: 0496191238Subjects--Topical Terms:

1017681
Biophysics, Medical.

Ultrasound attenuation spectra and ratio intensity data in test objects modeling cortical bone: A new technique for early detection of osteoporosis.
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245 1 0 $a Ultrasound attenuation spectra and ratio intensity data in test objects modeling cortical bone: A new technique for early detection of osteoporosis.
300 $a 44 p.
500 $a Source: Masters Abstracts International, Volume: 41-06, page: 1684.
500 $a Adviser: Ken Ganezer.
502 $a Thesis (M.S.)--California State University, Dominguez Hills, 2003.
520 $a Current QUS methods to detect BMD focus on cancellous bone whose varying compositions of red and yellow marrow makes readings inaccurate A new QUS technique focuses on the diaphysis of cortical bone and uses the yellow marrow as an impedance mismatch. Test objects of known density were used to emulate cortical bone.
520 $a Ultrasound signals captured from the top surface of the test object and the bottom surface of the test object were isolated and studied. The intensity of the signals is calculated, then compared, and a correlation with BMD is expected.
520 $a The intensity of the signals correlated negatively with BMD. As BMD increased, the ratio decreased. The BUA versus BMD was calculated and a negative correlation was seen as well. The 3 Megahertz transducer showed an R2 value of 0.94, which shows a strong negative correlation between BUA and BMD in test objects.
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650 4 $a Health Sciences, Radiology. $3 1019076
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