{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T00:42:09Z","timestamp":1784680929944,"version":"3.55.0"},"reference-count":18,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2021,4,12]],"date-time":"2021-04-12T00:00:00Z","timestamp":1618185600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11827808 and 12004079"],"award-info":[{"award-number":["11827808 and 12004079"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["Discovery Grant"],"award-info":[{"award-number":["Discovery Grant"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Ultrason Imaging"],"published-print":{"date-parts":[[2021,5]]},"abstract":"<jats:p>Ultrasonic guided wave techniques have been applied to characterize cortical bone for osteoporosis assessment. Compared with the current gold-standard X-ray-based diagnostic methods, ultrasound-based techniques pose some advantages such as compactness, low cost, lack of ionizing radiation, and their ability to detect the mechanical properties of the cortex. Axial transmission technique with a source-receiver offset is employed to acquire the ultrasound data. The dispersion characteristics of the guided waves in bones are normally analyzed in the transformed domains using the dispersion curves. The transformed domain can be time-frequency map using a single channel or wavenumber-frequency (or phase velocity-frequency) map with multi-channels. In terms of acquisition effort, the first method is more cost- and time-effective than the latter. However, it remains unclear whether single-channel dispersion analysis can provide as much quantitative guided-wave information as the multi-channel analysis. The objective of this study is to compare the two methods using numerically simulated and ex vivo data of a simple bovine bone plate and explore their advantages and disadvantages. Both single- and multi-channel signal processing approaches are implemented using sparsity-constrained optimization algorithms to reinforce the focusing power. While the single-channel data acquisition and processing are much faster than those of the multi-channel, modal identification and analysis of the multi-channel data are straightforward and more convincing.<\/jats:p>","DOI":"10.1177\/01617346211006660","type":"journal-article","created":{"date-parts":[[2021,4,12]],"date-time":"2021-04-12T04:41:09Z","timestamp":1618202469000},"page":"157-163","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["Single Versus Multi-channel Dispersion Analysis of Ultrasonic Guided Waves Propagating in Long Bones"],"prefix":"10.1177","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1269-1166","authenticated-orcid":false,"given":"Tho N. H. T.","family":"Tran","sequence":"first","affiliation":[{"name":"Institute of Biomedical Engineering and Technology, Academy for Engineering and Technology, Fudan University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"He","sequence":"additional","affiliation":[{"name":"Department of Medical Physics and Biomedical Engineering, University College London, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenggang","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, Fudan University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mauricio D.","family":"Sacchi","sequence":"additional","affiliation":[{"name":"Department of Physics, University of Alberta, Edmonton, AB, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6651-4491","authenticated-orcid":false,"given":"Dean","family":"Ta","sequence":"additional","affiliation":[{"name":"Institute of Biomedical Engineering and Technology, Academy for Engineering and Technology, Fudan University, Shanghai, China"},{"name":"Department of Electronic Engineering, Fudan University, Shanghai, China"},{"name":"Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, AB, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1907-1258","authenticated-orcid":false,"given":"Lawrence H.","family":"Le","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, Fudan University, Shanghai, China"},{"name":"Department of Physics, University of Alberta, Edmonton, AB, Canada"},{"name":"Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, AB, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,4,12]]},"reference":[{"key":"bibr1-01617346211006660","doi-asserted-by":"publisher","DOI":"10.5152\/eurjrheum.2016.048"},{"key":"bibr2-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-007-0017-8"},{"key":"bibr3-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultras.2013.08.004"},{"key":"bibr4-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1121\/1.4832335"},{"key":"bibr5-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1063\/1.3300474"},{"key":"bibr6-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultras.2006.05.156"},{"key":"bibr7-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9781107273610"},{"key":"bibr8-01617346211006660","volume":"57","author":"Xu K","year":"2010","journal-title":"IEEE Trans Ultrason Ferroelectr Freq Control"},{"key":"bibr9-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultrasmedbio.2013.06.007"},{"key":"bibr10-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1007\/s11433-013-5110-9"},{"key":"bibr11-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1121\/1.400530"},{"key":"bibr12-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1121\/1.4881929"},{"key":"bibr13-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultrasmedbio.2014.05.021"},{"key":"bibr14-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1007\/s10237-018-1025-8"},{"key":"bibr15-01617346211006660","unstructured":"Bonar D. Sparsity and group sparsity constrained inversion for spectral decomposition of seismic data [Master Thesis]. University of Alberta, Edmonton, AB, Canada, 2012."},{"key":"bibr16-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1190\/geo2014-0441.1"},{"key":"bibr17-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1137\/080716542"},{"key":"bibr18-01617346211006660","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4615-5947-4_24"}],"container-title":["Ultrasonic Imaging"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/01617346211006660","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/01617346211006660","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/01617346211006660","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T16:28:36Z","timestamp":1777652916000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/01617346211006660"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,4,12]]},"references-count":18,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2021,5]]}},"alternative-id":["10.1177\/01617346211006660"],"URL":"https:\/\/doi.org\/10.1177\/01617346211006660","relation":{},"ISSN":["0161-7346","1096-0910"],"issn-type":[{"value":"0161-7346","type":"print"},{"value":"1096-0910","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,4,12]]}}}