| Téléchargement | - Voir le manuscrit accepté : Non-contact photoacoustic tomography and ultrasonography for tissue imaging (PDF, 680 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1364/BOE.3.000016 |
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| Auteur | Rechercher : Rousseau, Guy1; Rechercher : Blouin, Alain1; Rechercher : Monchalin, Jean-Pierre1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
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| Format | Texte, Article |
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| Résumé | The detection of ultrasound in photoacoustic tomography (PAT) and ultrasonography (US) usually relies on ultrasonic transducers in contact with the biological tissue. This is a major drawback for important potential applications such as surgery and small animal imaging. Here we report the use of remote optical detection, as used in industrial laser-ultrasonics, to detect ultrasound in biological tissues. This strategy enables non-contact implementation of PAT and US without exceeding laser exposure safety limits. The method uses suitably shaped laser pulses and a confocal Fabry-Perot interferometer in differential configuration to reach quantum-limited sensitivity. Endogenous and exogenous inclusions exhibiting optical and acoustic contrasts were detected ex vivo in chicken breast and calf brain specimens. Inclusions down to 0.5 mm in size were detected at depths well exceeding 1 cm. The method could significantly expand the scope of applications of PAT and US in biomedical imaging. |
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| Date de publication | 2011-12-02 |
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| Maison d’édition | Optical Society of America |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRC-54373 |
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| Numéro NPARC | 19105357 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | c5ac8a0a-1633-4750-84b0-005299d2a694 |
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| Enregistrement créé | 2011-12-21 |
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| Enregistrement modifié | 2020-04-21 |
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