Výsledky vyhledávání - "ocis:(170.7170) Ultrasound"

Pencil beam all-optical ultrasound imaging

Autor: Alles, Erwin J., Noimark, Sacha, Zhang, Edward, Beard, Paul C., Desjardins, Adrien E.

Publikováno v: Biomedical Optics Express

A miniature, directional fibre-optic acoustic source is presented that employs geometrical focussing to generate a nearly-collimated acoustic pencil beam. When paired with a fibre-optic acoustic detector, an all-optical ultrasound probe with an outer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::df7a019ec2ce96ba9b8fdaf0f7be5fb1
http://europepmc.org/articles/PMC5030042

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Incorporation of an ultrasound and model guided permissible region improves quantitative source recovery in bioluminescence tomography

Autor: Stephen P. Morgan, Hamid Dehghani, Baptiste Jayet

Publikováno v: Biomedical optics express
Biomedical optics express, Optical Society of America-OSA Publishing, 2018, 9 (3), pp.1360
Biomedical Optics Express

International audience; Bioluminescence imaging has shown great potential for studying and monitoring disease progression in small animal pre-clinical imaging. However, absolute bioluminescence source recovery through tomographic multi-wavelength mea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8dae9f40806dd47783b139e2ed8b10e4
https://hal.science/hal-02005721

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Gel wax-based tissue-mimicking phantoms for multispectral photoacoustic imaging

Autor: Efthymios, Maneas, Wenfeng, Xia, Olumide, Ogunlade, Martina, Fonseca, Daniil I, Nikitichev, Anna L, David, Simeon J, West, Sebastien, Ourselin, Jeremy C, Hebden, Tom, Vercauteren, Adrien E, Desjardins

Publikováno v: Biomedical Optics Express

Tissue-mimicking phantoms are widely used for the calibration, evaluation and standardisation of medical imaging systems, and for clinical training. For photoacoustic imaging, tissue-mimicking materials (TMMs) that have tuneable optical and acoustic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::a6aef52f19973ef60948e2d9b67b13bf
https://pubmed.ncbi.nlm.nih.gov/29541509

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Velocity measurements in whole blood using acoustic resolution photoacoustic Doppler

Autor: Joanna, Brunker, Paul, Beard

Publikováno v: Biomedical Optics Express

Acoustic resolution photoacoustic Doppler velocimetry promises to overcome the spatial resolution and depth penetration limitations of current blood flow measuring methods. Despite successful implementation using blood-mimicking fluids, measurements

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::98634539a09d7dbb24b073f1237b73ac
https://pubmed.ncbi.nlm.nih.gov/27446707

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Ultrasound-guided photoacoustic imaging for the selective detection ofEGFR-expressing breast cancer and lymph node metastases

Autor: Woo Kyung Moon, Ann Yi, Hoe Suk Kim, Tiefeng Jin, Meihua Zhang

Publikováno v: BIOMEDICAL OPTICS EXPRESS(7): 5
Biomedical Optics Express

We assessed the use of ultrasound (US)-guided photoacoustic imaging (PAI) and anti-EGFR antibody-conjugated gold nanorods (anti-EGFR-GNs) to non-invasively detect EGFR-expressing primary tumor masses and regional lymph node (LN) metastases in breast

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4a3aac23528db2829ad85514f8897cd
http://open-repository.kisti.re.kr/cube/handle/open_repository/486686.do

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Effects of acetazolamide on the micro- and macro-vascular cerebral hemodynamics: a diffuse optical and transcranial doppler ultrasound study

Autor: Joan Martí-Fàbregas, Raquel Delgado-Mederos, Peyman Zirak, Turgut Durduran

Publikováno v: Biomedical Optics Express
r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
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Acetazolamide (ACZ) was used to stimulate the cerebral vasculature on ten healthy volunteers to assess the cerebral vasomotor reactivity (CVR). We have combined near infrared spectroscopy (NIRS), diffuse correlation spectroscopy (DCS) and transcrania

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d203f755efdf80f4ae318ceb88f6a90
https://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=12418

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Tissue-mimicking phantoms for photoacoustic and ultrasonic imaging

Autor: Stanislav Emelianov, Jason R. Cook, Richard R. Bouchard

Publikováno v: Biomedical Optics Express

In both photoacoustic (PA) and ultrasonic (US) imaging, overall image quality is influenced by the optical and acoustical properties of the medium. Consequently, with the increased use of combined PA and US (PAUS) imaging in preclinical and clinical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21e77b729bd551fef57501cdf3719b9d
https://doi.org/10.1364/boe.2.003193

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Fabrication and characterization of High Q polymer micro-ring resonator and its application as a sensitive ultrasonic detector

Autor: L. Jay Guo, Sung-Liang Chen, Tao Ling

Publikováno v: Optics Express

Smooth sidewall silicon micro-ring molds have been fabricated using resist reflow and thermal oxidation method. High Q factor polymer micro-ring resonators have been fabricated using these molds. Quality factors as high as 10(5) have been measured at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43c273c3f302dd1dbce1f4838c72d796
https://doi.org/10.1364/oe.19.000861

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