Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jonathan R. Fincke"'
Publikováno v:
IEEE transactions on medical imaging. 41(3)
This work presents the first quantitative ultrasonic sound speed images of ex vivo limb cross-sections containing both soft tissue and bone using Full Waveform Inversion (FWI) with level set (LS) and travel time regularization. The estimated bulk sou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::112bc7608a9fa50d4da2416a6836727b
https://pubmed.ncbi.nlm.nih.gov/34570702
https://pubmed.ncbi.nlm.nih.gov/34570702
Publikováno v:
ISBI
Speed of sound (SOS) is a biomarker that aides clinicians in tracking the onset and progression of diseases such as breast cancer and fatty liver disease. In this paper, we propose a framework to generate accurate, 2D SOS maps with a commercial ultra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cadcc9d0179f6b1659eb4d26ea660292
https://doi.org/10.1109/isbi45749.2020.9098381
https://doi.org/10.1109/isbi45749.2020.9098381
Autor:
Julie M. Hughes, Xiang Zhang, Jonathan R. Fincke, Anthony E. Samir, Jonathan M. Richardson, Brian W. Anthony, Robert W. Haupt
Publikováno v:
2019 IEEE International Ultrasonics Symposium (IUS).
MIT Lincoln Laboratory, the Medical Device Realization Center (MEDRC) at MIT, and the Massachusetts General Hospital (MGH) are collaboratively developing a novel optical system that acquires ultrasound images within the human body without physical co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7968fcc1731232a00143c274083b0e35
https://doi.org/10.1109/ultsym.2019.8925569
https://doi.org/10.1109/ultsym.2019.8925569
Autor:
Xiang Zhang, Brian W. Anthony, Robert W. Haupt, Matthew Roy Johnson, Jonathan R. Fincke, Charles M. Wynn
Publikováno v:
Light, Science & Applications
Light: Science & Applications, Vol 8, Iss 1, Pp 1-11 (2019)
Light: Science & Applications, Vol 8, Iss 1, Pp 1-11 (2019)
Full noncontact laser ultrasound (LUS) imaging has several distinct advantages over current medical ultrasound (US) technologies: elimination of the coupling mediums (gel/water), operator-independent image quality, improved repeatability, and volumet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b8e6dc58a1c1046e0ef7915930a6a31
https://pubmed.ncbi.nlm.nih.gov/31885865
https://pubmed.ncbi.nlm.nih.gov/31885865
Autor:
Brian W. Anthony, Jonathan R. Fincke, Robert W. Haupt, Anthony E. Samir, Charles M. Wynn, Xiang Zhang
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
The potential of a fully noncontact, standoff, laserultrasound system that acquires ultrasonic images within biological tissue is examined. A pulsed laser converts optical energy into ultrasound via photoacoustic mechanisms, while laser Doppler vibro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71b8b550047ff00492453cbe30108692
https://doi.org/10.1109/ultsym.2017.8091941
https://doi.org/10.1109/ultsym.2017.8091941
Publikováno v:
SPIE Proceedings.
Sound speed inversions made using simulated time of flight data from a numerical limb-mimicking phantom comprised of soft tissue and a bone inclusion demonstrate that wave front tracking forward modeling combined with L1 regularization may lead to ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42de2b1915fad359957f3ca4ebb6e115
https://doi.org/10.1117/12.2218387
https://doi.org/10.1117/12.2218387
Publikováno v:
SPIE Proceedings.
Despite advancements in medical imaging, current prosthetic fitting methods remain subjective, operator dependent, and non-repeatable. The standard plaster casting method relies on prosthetist experience and tactile feel of the limb to design the pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::947c33e2e96c54c6bd794a6048f7af87
https://doi.org/10.1117/12.2216542
https://doi.org/10.1117/12.2216542
Publikováno v:
Journal of Biomedical Optics. 24:1
Short optical pulses emitted from a tunable Q-switched laser (800 to 2000 nm) generate laser ultrasound (LUS) signals at the surface of biological tissue. The LUS signal’s acoustic frequency content, dependence on sample type, and optical wavelengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29a06f9bf0ad15df32524426c86772f7
https://doi.org/10.1117/1.jbo.24.2.021206
https://doi.org/10.1117/1.jbo.24.2.021206
Publikováno v:
EMBC
Over the past decade, substantial effort has been directed toward developing ultrasonic systems for medical imaging. With advances in computational power, previously theorized scanning methods such as ultrasound tomography can now be realized. In thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::665b9c70dfc88f70fea01e2d372ea870
https://doi.org/10.1109/embc.2015.7319647
https://doi.org/10.1109/embc.2015.7319647
Autor:
Jonathan R. Fincke
Publikováno v:
The Journal of the Acoustical Society of America. 141:3549-3549
Regularizing travel-time and full waveform tomographic techniques with level set methods enables the recovery of cortical bone geometry. Bone imaging and quantification is of general clinical utility. Applications include prosthetic fitting, fracture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b937aa2b45772581beafd9863609c28c
https://doi.org/10.1121/1.4987513
https://doi.org/10.1121/1.4987513