Broadband High-Frequency Ultrasonic Transducer Based Functional Photoacoustic Mesoscopy for Psoriasis Progression
In vivo imaging of skin is commonly used to investigate dynamic processes in the progression and treatment of psoriasis. Photoacoustic mesoscopy is a new non-invasive imaging modality widely used in bio-imaging, and has recently been applied to imaging skin in vivo. However, photoacoustic imaging ha...
| Veröffentlicht in: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control. - 1986. - 69(2022), 6 vom: 20. Juni, Seite 1926-1931 |
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| Weitere Verfasser: | , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2022
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| Zugriff auf das übergeordnete Werk: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't |
| Zusammenfassung: | In vivo imaging of skin is commonly used to investigate dynamic processes in the progression and treatment of psoriasis. Photoacoustic mesoscopy is a new non-invasive imaging modality widely used in bio-imaging, and has recently been applied to imaging skin in vivo. However, photoacoustic imaging has shortcomings. Although high-frequency ultrasonic transducers enable high-resolution photoacoustic imaging, the images may be bandwidth-limited. To overcome this limitation, we designed and fabricated a broadband ultrasonic transducer for photoacoustic mesoscopy. The center frequency of the transducer was 32 MHz (88% bandwidth at -6 dB). The transducer was used to visualize mouse and human skin morphology. Colocalization of high- and low-frequency components revealed information about both the skin surface and dermis. To explore dynamic structural changes in mouse back skin during psoriasis progression, we measured blood oxygen saturation and total hemoglobin in a mouse model using multiwavelength imaging without contrast agents. The results indicate that functional photoacoustic mesoscopy using a broadband high-frequency transducer has great potential for clinical imaging of skin disease |
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| Beschreibung: | Date Completed 30.05.2022 Date Revised 23.06.2022 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1525-8955 |
| DOI: | 10.1109/TUFFC.2021.3136870 |