scholarly journals Implementation of a Rotational Ultrasound Biomicroscopy System Equipped with a High-Frequency Angled Needle Transducer — Ex Vivo Ultrasound Imaging of Porcine Ocular Posterior Tissues

Sensors ◽  
2014 ◽  
Vol 14 (9) ◽  
pp. 17807-17816
Author(s):  
Tae-Hoon Bok ◽  
Juho Kim ◽  
Jinho Bae ◽  
Chong Lee ◽  
Dong-Guk Paeng
Keyword(s):  
Ultrasound Imaging ◽  
High Frequency ◽  
Ex Vivo ◽  
Ultrasound Biomicroscopy

scholarly journals Implementation of a Rotational Ultrasound Biomicroscopy System Equipped with a High-Frequency Angled Needle Transducer — Ex Vivo Ultrasound Imaging of Porcine Ocular Posterior Tissues

2021 ◽  
Author(s):  
Tae-Hoon Bok ◽  
Juho Kim ◽  
Jinho Bae ◽  
Chong Hyun Lee ◽  
Dong-Guk Paeng
Keyword(s):  
Ultrasound Imaging ◽  
High Frequency ◽  
Ex Vivo ◽  
Focal Length ◽  
Ultrasound Biomicroscopy ◽  
Single Element ◽  
High Frequency Ultrasound ◽  
Scanning Angle ◽  
Distance Range ◽  
Minimal Incision

The mechanical scanning of a single element transducer has been mostly utilized for high-frequency ultrasound imaging. However, it requires space for the mechanical motion of the transducer. In this paper, a rotational scanning ultrasound biomicroscopy (UBM) system equipped with a high-frequency angled needle transducer is designed and implemented in order to minimize the space required. It was applied to ex vivo ultrasound imaging of porcine posterior ocular tissues through a minimal incision hole of 1 mm in diameter. The retina and sclera for the one eye were visualized in the relative rotating angle range of 270° ~ 330° and at a distance range of 6 ~ 7 mm, whereas the tissues of the other eye were observed in relative angle range of 160° ~ 220° and at a distance range of 7.5 ~ 9 mm. The layer between retina and sclera seemed to be bent because the distance between the transducer tip and the layer was varied while the transducer was rotated. Certin features of the rotation system such as the optimal scanning angle, step angle and data length need to be improved for ensure higher accuracy and precision. Moreover, the focal length should be considered for the image quality. This implementation represents the first report of a rotational scanning UBM system.

scholarly journals Implementation of a Rotational Ultrasound Biomicroscopy System Equipped with a High-Frequency Angled Needle Transducer — Ex Vivo Ultrasound Imaging of Porcine Ocular Posterior Tissues

2021 ◽  
Author(s):  
Tae-Hoon Bok ◽  
Juho Kim ◽  
Jinho Bae ◽  
Chong Hyun Lee ◽  
Dong-Guk Paeng
Keyword(s):  
Ultrasound Imaging ◽  
High Frequency ◽  
Ex Vivo ◽  
Focal Length ◽  
Ultrasound Biomicroscopy ◽  
Single Element ◽  
High Frequency Ultrasound ◽  
Scanning Angle ◽  
Distance Range ◽  
Minimal Incision

The mechanical scanning of a single element transducer has been mostly utilized for high-frequency ultrasound imaging. However, it requires space for the mechanical motion of the transducer. In this paper, a rotational scanning ultrasound biomicroscopy (UBM) system equipped with a high-frequency angled needle transducer is designed and implemented in order to minimize the space required. It was applied to ex vivo ultrasound imaging of porcine posterior ocular tissues through a minimal incision hole of 1 mm in diameter. The retina and sclera for the one eye were visualized in the relative rotating angle range of 270° ~ 330° and at a distance range of 6 ~ 7 mm, whereas the tissues of the other eye were observed in relative angle range of 160° ~ 220° and at a distance range of 7.5 ~ 9 mm. The layer between retina and sclera seemed to be bent because the distance between the transducer tip and the layer was varied while the transducer was rotated. Certin features of the rotation system such as the optimal scanning angle, step angle and data length need to be improved for ensure higher accuracy and precision. Moreover, the focal length should be considered for the image quality. This implementation represents the first report of a rotational scanning UBM system.

scholarly journals Strain imaging of the lateral collateral ligament using high frequency and conventional ultrasound imaging: An ex-vivo comparison

2018 ◽  
Vol 73 ◽  
pp. 233-237 ◽  
Author(s):  
Kaj Gijsbertse ◽  
André Sprengers ◽  
Hamid Naghibi Beidokhti ◽  
Maartje Nillesen ◽  
Chris de Korte ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
High Frequency ◽  
Ex Vivo ◽  
Lateral Collateral Ligament ◽  
Strain Imaging ◽  
Collateral Ligament ◽  
Conventional Ultrasound

High-Frequency Ex vivo Ultrasound Imaging of the Auditory System

2009 ◽  
Vol 35 (11) ◽  
pp. 1899-1907 ◽  
Author(s):  
Jeremy A. Brown ◽  
Zahra Torbatian ◽  
Robert B. Adamson ◽  
Rene Van Wijhe ◽  
Ronald J. Pennings ◽  
...  
Keyword(s):  
Auditory System ◽  
Ultrasound Imaging ◽  
High Frequency ◽  
Ex Vivo

High‐frequency quantitative ultrasound imaging methods for human lymph nodes characterization ex vivo

2008 ◽  
Vol 123 (5) ◽  
pp. 3001-3001
Author(s):  
Jonathan Mamou ◽  
Alain Coron ◽  
Masaki Hata ◽  
Junji Machi ◽  
Eugene Yanagihara ◽  
...  
Keyword(s):  
Lymph Nodes ◽  
Ultrasound Imaging ◽  
Quantitative Ultrasound ◽  
High Frequency ◽  
Ex Vivo ◽  
Imaging Methods

High Frequency Ex Vivo Ultrasound Imaging of the Middle Ear to Show Simulated Ossicular Pathology

2016 ◽  
Vol 37 (5) ◽  
pp. 586-592 ◽  
Author(s):  
James W. Rainsbury ◽  
Thomas G. Landry ◽  
Jeremy A. Brown ◽  
Robert A. Adamson ◽  
Manohar Bance
Keyword(s):  
Ultrasound Imaging ◽  
Middle Ear ◽  
High Frequency ◽  
Ex Vivo
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