| Presentation | 2021-09-24 Improvement of Depth of Field of Photoacoustic Microscope Images by Applying Delay and Sum Method to an Annular Array Sensor Riku Suzuki, Ryo Shintate, Takuro Ishii, Yoshifumi Saijo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Photoacoustic (PA) imaging has attracted much attention to observe the structure of the peripheral microvascular networks. The purpose of this study is to evaluate the effects of the delay-and-sum (DAS) method on the depth of field (DOF) of the maximum amplitude projection (MAP) images using a PA imaging system equipped with a four-channel annular array sensor. A 100 ?m microtubule and human skin microvessels were imaged to measure the diameter of the subjects at different depth from the acoustic sensor. The results showed that the DAS method sharpened the subjects in the images by up to 66.7% in a depth range of ±1 mm from the geometrical focus of the acoustic sensor and was effective to improve the DOF of the photoacoustic images. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Photoacoustic imaging / Annular array sensor / Delay-and-Sum method / Microvascular visualization |
| Paper # | US2021-38 |
| Date of Issue | 2021-09-17 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2021/9/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Photoacoustics, Ultrasound in medicine, Ultrasonics, etc. |
| Chair | Yoshikazu Koike(Shibaura Inst. of Tech.) |
| Vice Chair | Hikaru Miura(Nihon Univ.) / Kentaro Nakamura(Tokyo Inst. of Tech.) |
| Secretary | Hikaru Miura(Tohoku Univ.) / Kentaro Nakamura(Chiba Univ.) |
| Assistant | Shin Yoshizawa(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of Depth of Field of Photoacoustic Microscope Images by Applying Delay and Sum Method to an Annular Array Sensor |
| Sub Title (in English) | |
| Keyword(1) | Photoacoustic imaging |
| Keyword(2) | Annular array sensor |
| Keyword(3) | Delay-and-Sum method |
| Keyword(4) | Microvascular visualization |
| 1st Author's Name | Riku Suzuki |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Ryo Shintate |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Takuro Ishii |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 4th Author's Name | Yoshifumi Saijo |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2021-09-24 |
| Paper # | US2021-38 |
| Volume (vol) | vol.121 |
| Number (no) | US-182 |
| Page | pp.pp.23-27(US), |
| #Pages | 5 |
| Date of Issue | 2021-09-17 (US) |