Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Heechul Yoon"'
Publikováno v:
Ultrasonography, Vol 42, Iss 2, Pp 343-353 (2023)
High-intensity focused ultrasound (HIFU) is an emerging therapeutic tool for the effective thermal ablation of pathological tissue. For accurate localization of the target and safe control of the HIFU dosage, real-time imaging guidance during the HIF
Externí odkaz:
https://doaj.org/article/b2c66abc06f941f9a1052ac6a609f69e
Publikováno v:
Bioengineering, Vol 11, Iss 1, p 8 (2023)
Low-complexity ultrasound systems are increasingly desired for both wearable, point-of-care ultrasound and high-end massive-channel ultrasound for 3-D matrix imaging. However, the imaging capabilities, including spatial resolution and contrast, could
Externí odkaz:
https://doaj.org/article/a597d9540b7a4039a3a24316faa268da
Autor:
Andrew X. Zhao, Yiying I. Zhu, Euisuk Chung, Jeehyun Lee, Samuel Morais, Heechul Yoon, Stanislav Emelianov
Publikováno v:
Nanomaterials, Vol 13, Iss 15, p 2238 (2023)
Perfluorocarbon nanodroplets (PFCnDs) are sub-micrometer emulsions composed of a surfactant-encased perfluorocarbon (PFC) liquid and can be formulated to transiently vaporize through optical stimulation. However, the factors governing repeated optica
Externí odkaz:
https://doaj.org/article/920cc4781c1b4388a21703d6e69c8731
Publikováno v:
Photoacoustics, Vol 12, Iss , Pp 46-54 (2018)
An optical wavelength selection method based on the stability of the absorption cross-section matrix to improve spectroscopic photoacoustic (sPA) imaging was recently introduced. However, spatially-varying chromophore concentrations cause the wavelen
Externí odkaz:
https://doaj.org/article/801ae333e45d4117aa2684f3b9684919
Autor:
Heechul Yoon
Publikováno v:
Photonics, Vol 8, Iss 10, p 405 (2021)
Laser-activated perfluorocarbon nanodroplets (PFCnDs) are emerging phase-change contrast agents that showed promising potential in ultrasound and photoacoustic (US/PA) imaging. Unlike monophase gaseous microbubbles, PFCnDs shift their state from liqu
Externí odkaz:
https://doaj.org/article/14513cdebdd84f1fadedc5fa9c201da2
Publikováno v:
IEEE Trans Ultrason Ferroelectr Freq Control
Implementation of a high-frequency ultrasound (HFUS) beamformer is computationally challenging because of its high sampling rate. This article introduces an efficient beamformer with sub-Nyquist sampling (or bandpass sampling) that is suitable for HF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e70b5bc6d6c63826ea89b62b29e2ada
https://europepmc.org/articles/PMC10264145/
https://europepmc.org/articles/PMC10264145/
Publikováno v:
Physics in Medicine & Biology. 68:015012
Objective. Tissue internal pressure, such as interstitial fluid pressure in solid tumors and intramuscular pressure in compartment syndrome, is closely related to the pathological state of tissues. It is of great diagnostic value to measure and/or mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b3bddd631271db32091e8579efa6e0f
https://doi.org/10.1088/1361-6560/aca9b8
https://doi.org/10.1088/1361-6560/aca9b8
Publikováno v:
IEEE Trans Med Imaging
This paper introduces a configurable combined laser, ultrasound, and elasticity (CLUE) imaging platform. The CLUE platform enables imaging sequences capable of simultaneously providing quantitative acoustic, optical, and mechanical contrast for compr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5331bdfc0dd523aa409da587a862848f
https://doi.org/10.1109/tmi.2018.2889736
https://doi.org/10.1109/tmi.2018.2889736
Publikováno v:
Ultrasound Med Biol
Perfluorocarbon nanodroplets (PFCnDs) are phase-change contrast agents that have the potential to enable extravascular contrast-enhanced ultrasound and photoacoustic (US/PA) imaging. Producing consistently small, monodisperse PFCnDs remains a challen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b826bae8575d3088d8cb546f2306140
https://doi.org/10.1016/j.ultrasmedbio.2019.02.009
https://doi.org/10.1016/j.ultrasmedbio.2019.02.009
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 66:692-700
Phase-change perfluorohexane nanodroplets (PFHnDs) are a new class of recondensable submicrometer-sized contrast agents that have potential for contrast-enhanced and super-resolution ultrasound imaging with an ability to reach extravascular targets.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4341be248ef8fba1ec2aee1f3bb4a3fa
https://doi.org/10.1109/tuffc.2019.2895248
https://doi.org/10.1109/tuffc.2019.2895248