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Transvaginal fast-scanning optical-resolution photoacoustic endoscopy.

ABSTRACT: Photoacoustic endoscopy offers in vivo examination of the visceral tissue using endogenous contrast, but its typical B-scan rate is ∼10  Hz, restricted by the speed of the scanning unit and the laser pulse repetition rate. Here, we present a transvaginal fast-scanning optical-resolution photoacoustic endoscope with a 250-Hz B-scan rate over a 3-mm scanning range. Using this modality, we not only illustrated the morphological differences of vasculatures among the human ectocervix, uterine body, and sublingual mucosa but also showed the longitudinal and cross-sectional differences of cervical vasculatures in pregnant women. This technology is promising for screening the visceral pathological changes associated with angiogenesis.

SUBMITTER: Qu Y 

PROVIDER: S-EPMC6279961 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Transvaginal fast-scanning optical-resolution photoacoustic endoscopy.

Qu Yuan Y   Li Chiye C   Shi Junhui J   Chen Ruimin R   Xu Song S   Rafsanjani Hasan H   Maslov Konstantin K   Krigman Hannah H   Garvey Laura L   Hu Peng P   Zhao Peinan P   Meyers Karen K   Diveley Emily E   Pizzella Stephanie S   Muench Lisa L   Punyamurthy Nina N   Goldstein Naomi N   Onwumere Oji O   Alisio Mariana M   Meyenburg Kaytelyn K   Maynard Jennifer J   Helm Kristi K   Slaughter Janessia J   Barber Sabrina S   Burger Tracy T   Kramer Christine C   Chubiz Jessica J   Anderson Monica M   McCarthy Ronald R   England Sarah K SK   Macones George A GA   Zhou Qifa Q   Shung K Kirk KK   Zou Jun J   Stout Molly J MJ   Tuuli Methodius M   Wang Lihong V LV  

Journal of biomedical optics 20181201 12

Photoacoustic endoscopy offers in vivo examination of the visceral tissue using endogenous contrast, but its typical B-scan rate is ∼10  Hz, restricted by the speed of the scanning unit and the laser pulse repetition rate. Here, we present a transvaginal fast-scanning optical-resolution photoacoustic endoscope with a 250-Hz B-scan rate over a 3-mm scanning range. Using this modality, we not only illustrated the morphological differences of vasculatures among the human ectocervix, uterine body, a  ...[more]

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