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Titolo:
BONE-DENSITY DETERMINATION OF MOOSE SKELETAL REMAINS FROM ISLE-ROYALE-NATIONAL-PARK USING DIGITAL IMAGE-ENHANCEMENT AND QUANTITATIVE COMPUTED-TOMOGRAPHY (QCT)
Autore:
HINDELANG M; MACLEAN AL;
Indirizzi:
MICHIGAN TECHNOL UNIV,SCH FORESTRY & WOOD PROD,1400 TOWNSEND DR HOUGHTON MI 49931
Titolo Testata:
International journal of osteoarchaeology
fascicolo: 3, volume: 7, anno: 1997,
pagine: 193 - 201
SICI:
1047-482X(1997)7:3<193:BDOMSR>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
LESIONS;
Keywords:
BONE MINERAL DENSITY; DIGITAL IMAGE PROCESSING; ISLE ROYALE; MOOSE ARCHAEOFAUNAL REMAINS; OSTEOPOROSIS; QUANTITATIVE COMPUTED TOMOGRAPHY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Arts & Humanities Citation Index
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
M. Hindelang e A.L. Maclean, "BONE-DENSITY DETERMINATION OF MOOSE SKELETAL REMAINS FROM ISLE-ROYALE-NATIONAL-PARK USING DIGITAL IMAGE-ENHANCEMENT AND QUANTITATIVE COMPUTED-TOMOGRAPHY (QCT)", International journal of osteoarchaeology, 7(3), 1997, pp. 193-201

Abstract

As part of an investigation of prey vulnerability in Isle Royale National Park, MI, digital image processing techniques were used to enhance original quantitative computed tomography (QCT) film products to detail the processes of bone resorption and reformation in skeletal remains of moose (Alces alces). Integration of these two allied imaging technologies allowed analyses of pixels representing fractions of millimetres of bone. Using regression analysis, linear conversions from the pixel digital numbers (DN) to QCT Hounsfield units (HU) to actual bone mineral density (BMD) values were calculated (r(2)=0.99), and a scale of pixels per millimetre or bone was determined. The colour-enhanced image revealed quantifiable patterns of density, porosity and asymmetry. In addition, the procedure provided a quick but consistent methodology for evaluating numerous scans. Combining the limited use of a high-demand and expensive medical QCT scanner with a lower cost, readily available digital image processing and analysis system provides a technique for researchers to investigate the bone integrity of individual animals and populations. This method of evaluating bone density has implications for use in determining differential skeletal part-preservation in archaeofaunal studies. (C) 1997 by John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 15:23:03