In Vivo Visualization of Vasculature in Adult Zebrafish by Using High-Frequency Ultrafast Ultrasound Imaging

Chao Chuan Chang, Pei Yu Chen, Hsin Huang, Chih-Chung Huang

Research output: Contribution to journalArticle

Abstract

Objective: Zebrafish has been recently considered an ideal vertebrate for studying developmental biology, genetics, particularly for modeling tumorigenesis, angiogenesis, and regeneration in vivo. However, when a zebrafish matures completely, its body loses transparency, thus making conventional optical imaging techniques difficult for imaging internal anatomy and vasculature. Acoustic wave penetration outperforms optical methods, high-frequency (>30 MHz) ultrasound (HFUS) was consequently an alternative imaging modality for adult zebrafish imaging, particularly for echocardiography However, visualizing peripheral vessels in a zebrafish by using conventional HFUS is still difficult. Methods: In the present study, high-frequency micro-Doppler imaging (HFμDI) based on ultrafast ultrasound imaging was proposed for zebrafish dorsal vascular mapping in vivo. HFμDI uses a 40-MHz ultrasound transducer, which is an ultrafast ultrasound imaging technology with the highest frequency available currently. Blood flow signals were extracted using an eigen-based clutter filter with different settings. Experiments were performed on an 8-month-old wild-type AB-line adult zebrafish. Results: Blood vessels, including intersegmental vessels, parachordal vessel, dorsal longitudinal anastomotic vessel, and dorsal aorta, from the dorsal side of the zebrafish were clearly observed in two-dimensional (2-D) and 3-D HFμDI. Conclusion: The maximum image depth of HFμDI and the minimal diameter of vessel can be detected were 4 mm and 36 μm, respectively; they were determined without any use of microbubbles. The maximum flow velocity range was approximately 3-4 mm/s on the dorsal vessels of the adult zebrafish. Significance: Compared with conventional ultrasound Doppler imaging, HFμDI exhibited superior small vessel imaging.

Original languageEnglish
Article number8516300
Pages (from-to)1742-1751
Number of pages10
JournalIEEE Transactions on Biomedical Engineering
Volume66
Issue number6
DOIs
Publication statusPublished - 2019 Jun 1

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Visualization
Ultrasonics
Imaging techniques
Echocardiography
Blood vessels
Flow velocity
Transparency
Transducers
Blood
Acoustic waves

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

Cite this

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title = "In Vivo Visualization of Vasculature in Adult Zebrafish by Using High-Frequency Ultrafast Ultrasound Imaging",
abstract = "Objective: Zebrafish has been recently considered an ideal vertebrate for studying developmental biology, genetics, particularly for modeling tumorigenesis, angiogenesis, and regeneration in vivo. However, when a zebrafish matures completely, its body loses transparency, thus making conventional optical imaging techniques difficult for imaging internal anatomy and vasculature. Acoustic wave penetration outperforms optical methods, high-frequency (>30 MHz) ultrasound (HFUS) was consequently an alternative imaging modality for adult zebrafish imaging, particularly for echocardiography However, visualizing peripheral vessels in a zebrafish by using conventional HFUS is still difficult. Methods: In the present study, high-frequency micro-Doppler imaging (HFμDI) based on ultrafast ultrasound imaging was proposed for zebrafish dorsal vascular mapping in vivo. HFμDI uses a 40-MHz ultrasound transducer, which is an ultrafast ultrasound imaging technology with the highest frequency available currently. Blood flow signals were extracted using an eigen-based clutter filter with different settings. Experiments were performed on an 8-month-old wild-type AB-line adult zebrafish. Results: Blood vessels, including intersegmental vessels, parachordal vessel, dorsal longitudinal anastomotic vessel, and dorsal aorta, from the dorsal side of the zebrafish were clearly observed in two-dimensional (2-D) and 3-D HFμDI. Conclusion: The maximum image depth of HFμDI and the minimal diameter of vessel can be detected were 4 mm and 36 μm, respectively; they were determined without any use of microbubbles. The maximum flow velocity range was approximately 3-4 mm/s on the dorsal vessels of the adult zebrafish. Significance: Compared with conventional ultrasound Doppler imaging, HFμDI exhibited superior small vessel imaging.",
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In Vivo Visualization of Vasculature in Adult Zebrafish by Using High-Frequency Ultrafast Ultrasound Imaging. / Chang, Chao Chuan; Chen, Pei Yu; Huang, Hsin; Huang, Chih-Chung.

In: IEEE Transactions on Biomedical Engineering, Vol. 66, No. 6, 8516300, 01.06.2019, p. 1742-1751.

Research output: Contribution to journalArticle

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