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Monitoring the setting of injectable calcium-based bone cements using pulse-echo ultrasound
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Polytechnical University of Catalonia, Barcelona.
Polytechnical University of Catalonia, Barcelona.
Polytechnical University of Catalonia, Barcelona.
2002 (English)In: Proceedings: 2002 IEEE Ultrasonics Symposium : October 8 - 11, 2002, Forum Hotel, Munich, Germany ; an international symposium / [ed] Donald E. Yuhas, Piscataway, NJ: IEEE Communications Society, 2002, 1293-1296 p.Conference paper (Refereed)
Abstract [en]

The existing standards for determining the setting time of injectable bone substitutes suffers from poor reproducibility and subjectivity. We previously presented an ultrasonic pulse-echo technique that can follow the entire setting reaction on-line, without any mechanical manipulation of the sample. For calcium sulfate hemihydrate (CSH), the new method shows good agreement with the standards, but with much better reproducibility. One problem with the new technique was its sensitivity to temperature fluctuations. In this paper we present a temperature compensation scheme that automatically corrects the measurements for losses caused by temperature changes. The modified method is verified with experiments on /spl alpha/-tricalcium phosphate (/spl alpha/-TCP). Because /spl alpha/-TCP has longer setting time than CSH, the initial method, which is sensitive to temperature, did not work.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2002. 1293-1296 p.
Research subject
Signal Processing
URN: urn:nbn:se:ltu:diva-39266DOI: 10.1109/ULTSYM.2002.1192531Local ID: dee7b850-6390-11db-8cbe-000ea68e967bISBN: 0-7803-7582-3OAI: diva2:1012776
IEEE Ultrasonics Symposium : 08/10/2002 - 11/10/2002
Godkänd; 2002; 20061024 (ysko)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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