dc.contributor.author | Braunstein, L | |
dc.contributor.author | Brüningk, SC | |
dc.contributor.author | Rivens, I | |
dc.contributor.author | Civale, J | |
dc.contributor.author | Haar, GT | |
dc.coverage.spatial | England | |
dc.date.accessioned | 2022-09-05T11:41:52Z | |
dc.date.available | 2022-09-05T11:41:52Z | |
dc.date.issued | 2022-06-01 | |
dc.identifier | S0301-5629(22)00069-2 | |
dc.identifier.citation | Ultrasound in Medicine and Biology, 2022, 48 (6), pp. 1095 - 1109 | en_US |
dc.identifier.issn | 0301-5629 | |
dc.identifier.uri | https://repository.icr.ac.uk/handle/internal/5406 | |
dc.identifier.eissn | 1879-291X | |
dc.identifier.eissn | 1879-291X | |
dc.identifier.doi | 10.1016/j.ultrasmedbio.2022.02.007 | |
dc.description.abstract | The thermal and mechanical effects induced in tissue by ultrasound can be exploited for therapeutic applications. Tissue-mimicking materials (TMMs), reflecting different soft tissue properties, are required for experimental evaluation of therapeutic potential. In the study described here, poly(vinyl alcohol) (PVA) hydrogels were characterized. Hydrogels prepared using different concentrations (5%-20% w/w) and molecular weights of PVA ± cellulose scatterers (2.5%-10% w/w) were characterized acoustically (sound speed, attenuation) as a function of temperature (25°C-45°C), thermally (thermal conductivity, specific heat capacity) and in terms of their cavitation thresholds. Results were compared with measurements in fresh sheep tissue (kidney, liver, spleen). Sound speed depended most strongly on PVA concentration, and attenuation, on cellulose content. For the range of formulations investigated, the PVA gel acoustic properties (sound speed: 1532 ± 17 to 1590 ± 9 m/s, attenuation coefficient: 0.08 ± 0.01 to 0.37 ± 0.02 dB/cm) fell within those measured in fresh tissue. Cavitation thresholds for 10% PVA hydrogels (50% occurrence: 4.1-5.4 MPa, 75% occurrence: 5.4-8.2 MPa) decreased with increasing cellulose content. In summary, PVA cellulose composite hydrogels may be suitable mimics of acoustic, cavitation and thermal properties of soft tissue for a number of therapeutic ultrasound applications. | |
dc.format | Print-Electronic | |
dc.format.extent | 1095 - 1109 | |
dc.language | eng | |
dc.language.iso | eng | en_US |
dc.publisher | ELSEVIER SCIENCE INC | en_US |
dc.relation.ispartof | Ultrasound in Medicine and Biology | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
dc.subject | Acoustic properties | |
dc.subject | Cavitation thresholds | |
dc.subject | Focused ultrasound | |
dc.subject | High-intensity focused ultrasound | |
dc.subject | Phantom material | |
dc.subject | Poly(vinyl alcohol) | |
dc.subject | Therapeutic ultrasound | |
dc.subject | Thermal properties | |
dc.subject | Tissue mimic | |
dc.subject | Acoustics | |
dc.subject | Animals | |
dc.subject | Cellulose | |
dc.subject | Hydrogels | |
dc.subject | Polyvinyl Alcohol | |
dc.subject | Sheep | |
dc.subject | Temperature | |
dc.title | Characterization of Acoustic, Cavitation, and Thermal Properties of Poly(vinyl alcohol) Hydrogels for Use as Therapeutic Ultrasound Tissue Mimics. | en_US |
dc.type | Journal Article | |
dcterms.dateAccepted | 2022-02-06 | |
dc.date.updated | 2022-09-05T11:41:31Z | |
rioxxterms.version | VoR | en_US |
rioxxterms.versionofrecord | 10.1016/j.ultrasmedbio.2022.02.007 | en_US |
rioxxterms.licenseref.startdate | 2022-06-01 | |
rioxxterms.type | Journal Article/Review | en_US |
pubs.author-url | https://www.ncbi.nlm.nih.gov/pubmed/35337687 | |
pubs.issue | 6 | |
pubs.organisational-group | /ICR | |
pubs.organisational-group | /ICR/Primary Group | |
pubs.organisational-group | /ICR/Primary Group/ICR Divisions | |
pubs.organisational-group | /ICR/Primary Group/ICR Divisions/Radiotherapy and Imaging | |
pubs.organisational-group | /ICR/Primary Group/ICR Divisions/Radiotherapy and Imaging/Therapeutic Ultrasound | |
pubs.organisational-group | /ICR/Students | |
pubs.organisational-group | /ICR/Students/PhD and MPhil | |
pubs.organisational-group | /ICR/Students/PhD and MPhil/18/19 Starting Cohort | |
pubs.publication-status | Published | |
pubs.publisher-url | http://dx.doi.org/10.1016/j.ultrasmedbio.2022.02.007 | |
pubs.volume | 48 | |
icr.researchteam | Therapeutic Ultrasound | en_US |
dc.contributor.icrauthor | Braunstein, Lisa | |
icr.provenance | Deposited by Mr Arek Surman on 2022-09-05. Deposit type is initial. No. of files: 1. Files: 1-s2.0-S0301562922000692-main.pdf | |