scholarly journals Fast Vessel Segmentation and Tracking in Ultra High-Frequency Ultrasound Images

2018 ◽  
pp. 746-754 ◽  
Author(s):  
Tejas Sudharshan Mathai ◽  
Lingbo Jin ◽  
Vijay Gorantla ◽  
John Galeotti
Keyword(s):  
High Frequency ◽  
Vessel Segmentation ◽  
Ultrasound Images ◽  
High Frequency Ultrasound ◽  
Ultra High Frequency ◽  
Frequency Ultrasound ◽  
Segmentation And Tracking

Evaluation of frontal fibrosing alopecia with ultra‐high‐frequency ultrasound

2021 ◽  
Author(s):  
Carolina Ávila de Almeida ◽  
Simone Guarçoni ◽  
Bruna Duque Estrada ◽  
Maria Carolina Zafra Páez ◽  
Clarissa Canella
Keyword(s):  
High Frequency ◽  
High Frequency Ultrasound ◽  
Ultra High Frequency ◽  
Frequency Ultrasound

Ultra high frequency ultrasound: a promising technique to visualize pelvic floor meshes in vivo

2020 ◽  
Author(s):  
A. W. Kastelein ◽  
B. C. de Graaf ◽  
Y. P. Latul ◽  
K. W. J. Verhorstert ◽  
J. Holthof ◽  
...  
Keyword(s):  
Pelvic Floor ◽  
High Frequency ◽  
High Frequency Ultrasound ◽  
Promising Technique ◽  
Ultra High Frequency ◽  
Frequency Ultrasound

High-Frequency and Ultra-High Frequency Ultrasound: Musculoskeletal Imaging up to 70 MHz

2020 ◽  
Vol 24 (02) ◽  
pp. 125-134 ◽  
Author(s):  
Domenico Albano ◽  
Giacomo Aringhieri ◽  
Carmelo Messina ◽  
Luca De Flaviis ◽  
Luca Maria Sconfienza
Keyword(s):  
High Frequency ◽  
Peripheral Nerves ◽  
Imaging Technique ◽  
Case Series ◽  
Image Resolution ◽  
Ultrastructural Changes ◽  
High Frequency Ultrasound ◽  
Ultra High Frequency ◽  
Time Dynamic ◽  
Frequency Ultrasound

AbstractMusculoskeletal (MSK) ultrasound has well-established advantages, able to investigate very small structures with high resolution and a quick and real-time dynamic evaluation with the possibility of contralateral comparison. Thus ultrasound has kept its own almost exclusive fields of application in daily clinical practice, and it is considered the first-level imaging technique to assess tendons, bursae, and capsuloligamentous structures of small peripheral joints as well as peripheral nerves. Up to now, however, clinical MSK ultrasound imaging could not go beyond the first 1 to 2 cm under the skin, using high-frequency probes up to 18 to 20 MHz with spatial resolution just below millimeters. We present the impressive technical advancements leading to image resolution as low as 30 µm using ultra-high frequency ultrasound (UHFUS) probes up to 70 MHz. High-frequency ultrasound and UHFUS, with frequencies ranging from 22 to 70 MHz, are promising tools to evaluate very superficial structures. In the MSK system, only two articles have assessed its value in limited case series. Future developments may be aimed to better assess ultrastructural changes of very superficial peripheral nerves and other thin structures such as pulleys, retinacula, and tendons.

scholarly journals Do High Frequency Ultrasound Images Support Clinical Skin Assessment?

ISRN Nursing ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Alison P. Porter-Armstrong ◽  
Catherine Adams ◽  
Anne S. Moorhead ◽  
Jeannie Donnelly ◽  
Jane Nixon ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Tissue Damage ◽  
High Frequency ◽  
Subcutaneous Tissue ◽  
Potential Method ◽  
Ultrasound Images ◽  
High Frequency Ultrasound ◽  
Patients At Risk ◽  
Qualitative Classification ◽  
Frequency Ultrasound

High frequency ultrasound imaging has been reported as a potential method of identifying the suspected tissue damage in patients “at risk” of pressure ulceration. The aim of this study was to explore whether ultrasound images supported the clinical skin assessment in an inpatient population through identification of subcutaneous tissue damage. Skin on the heels and/or sacral coccygeal area of fifty vascular surgery inpatients was assessed clinically by tissue viability nurses and with ultrasound pre operatively and at least every other day until discharge. Images were compared to routine clinical skin assessment outcomes. Qualitative classification of ultrasound images did not match outcomes yielded through the clinical skin assessment. Images corresponding to 16 participants were classified as subgroup 3 damage at the heels (equivalent to grade 2 pressure ulceration); clinical skin assessment rated no heels as greater than grade 1a (blanching erythema). Conversely, all images captured of the sacral coccygeal area were classified as normal; the clinical skin assessment rated two participants as grade 1b (non-blanching erythema). Ultrasound imaging is a potentially useful adjunct to the clinical skin assessment in providing information about the underlying tissue. However, further longitudinal clinical assessment is required to characterise images against actual and “staged” pressure ulceration.

Novel Evidence Concerning Lacrimal Sac Movement Using Ultra-High-Frequency Ultrasound Examinations of Lacrimal Drainage Systems

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Elin Bohman ◽  
Johanna Berggren ◽  
Josefine Bunke ◽  
John Albinsson ◽  
Karl Engelsberg ◽  
...  
Keyword(s):  
High Frequency ◽  
Lacrimal Sac ◽  
High Frequency Ultrasound ◽  
Drainage Systems ◽  
Ultra High Frequency ◽  
Frequency Ultrasound ◽  
Lacrimal Drainage

Nested Graph Cut for Automatic Segmentation of High-Frequency Ultrasound Images of the Mouse Embryo

2016 ◽  
Vol 35 (2) ◽  
pp. 427-441 ◽  
Author(s):  
Jen-wei Kuo ◽  
Jonathan Mamou ◽  
Orlando Aristizabal ◽  
Xuan Zhao ◽  
Jeffrey A. Ketterling ◽  
...  
Keyword(s):  
Mouse Embryo ◽  
High Frequency ◽  
Automatic Segmentation ◽  
Graph Cut ◽  
Ultrasound Images ◽  
High Frequency Ultrasound ◽  
Frequency Ultrasound
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