Portable Vector Flow Imaging Compared With Spectral Doppler Ultrasonography

Autor: Tommaso Di Ianni, Ramin Moshavegh, Kristoffer Lindskov Hansen, Jørgen Arendt Jensen, Carlos Armando Villagomez Hoyos, Michael Bachmann Nielsen

Publikováno v: di Ianni, T, Hansen, K L, Villagómez Hoyos, C A, Moshavegh, R, Bachmann Nielsen, M & Jensen, J A 2018, ' Portable Vector Flow Imaging Compared with Spectral Doppler Ultrasonography ', I E E E Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 66, no. 3, pp. 453-462 . https://doi.org/10.1109/TUFFC.2018.2872508
Di Ianni, T, Hansen, K L, Villagomez Hoyos, C A, Moshavegh, R, Nielsen, M B & Jensen, J A 2019, ' Portable Vector Flow Imaging Compared With Spectral Doppler Ultrasonography ', IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 66, no. 3, pp. 453-462 . https://doi.org/10.1109/TUFFC.2018.2872508

In this study, a vector flow imaging (VFI) method developed for a portable ultrasound scanner was used for estimating peak velocity values and variation in beam-to-flow angle over the cardiac cycle in vivo on healthy volunteers. Peak-systolic velocit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccadc8fe590807227e1f5ca60eea7a10
https://doi.org/10.1109/tuffc.2018.2872508

In vivo Motion Correction in Super Resolution Imaging of Rat Kidneys

Autor: Michael Bachmann Nielsen, Jørgen Arendt Jensen, Sofie Bech Andersen, Carlos Armando Villagomez Hoyos, Iman Taghavi, Charlotte Mehlin Sorensen

Publikováno v: Taghavi, I, Andersen, S B, Hoyos, C A V, Nielsen, M B, Sorensen, C M & Jensen, J A 2021, ' In vivo Motion Correction in Super Resolution Imaging of Rat Kidneys ', IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 68, no. 10, pp. 3082-3093 . https://doi.org/10.1109/TUFFC.2021.3086983
Taghavi, I, Bech Andersen, S, Hoyos, C A V, Nielsen, M B, Sørensen, C M & Jensen, J A 2021, ' In vivo Motion Correction in Super Resolution Imaging of Rat Kidneys ', IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 68, no. 10, pp. 3082-3093 . https://doi.org/10.1109/TUFFC.2021.3086983

Super-resolution (SR) imaging has the potential of visualizing the microvasculature down to the 10- $\mu \text{m}$ level, but motion induced by breathing, heartbeats, and muscle contractions are often significantly above this level. This article, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::634710fea92e3387aa99b318fb2e3f23
https://curis.ku.dk/portal/da/publications/in-vivo-motion-correction-in-super-resolution-imaging-of-rat-kidneys(da905f5b-83a1-4252-b50e-41e66a3451e3).html

Tracking Performance in Ultrasound Super-Resolution Imaging

Autor: Jørgen Arendt Jensen, Michael Bachmann Nielsen, Carlos Armando Villagomez Hoyos, Kristoffer Lindskov Hansen, Fredrik Gran, Sofie Bech Andersen, Iman Taghavi, Charlotte Mehlin Sorensen, Mikkel Schou, Sigrid Husebo Oygard, Matthias Bo Stuart

Publikováno v: Taghavi, I, Andersen, S B, Hoyos, C A V, Schou, M, Øygard, S H, Gran, F, Hansen, K L, Sørensen, C M, Bachmann Nielsen, M, Stuart, M B & Jensen, J A 2020, Tracking Performance in Ultrasound Super-Resolution Imaging . in 2020 IEEE International Ultrasonics Symposium . IEEE, 2020 IEEE International Ultrasonics Symposium, Las Vegas, Nevada, United States, 06/09/2020 . https://doi.org/10.1109/IUS46767.2020.9251605
Taghavi, I, Andersen, S B, Hoyos, C A V, Schou, M, Oygard, S H, Gran, F, Hansen, K L, Sorensen, C M, Nielsen, M B, Stuart, M B & Jensen, J A 2020, Tracking performance in ultrasound super-resolution imaging . in IUS 2020-International Ultrasonics Symposium, Proceedings ., 9251605, IEEE, 2020 IEEE International Ultrasonics Symposium, IUS 2020, Las Vegas, United States, 07/09/2020 . https://doi.org/10.1109/IUS46767.2020.9251605

Tracking plays an important role in super-resolution (SR) ultrasound imaging, as it improves the quality and sharpness of the final SR images. Moreover, tracking enables quantification of clinically important parameters, such as blood flow velocity.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4873b6c9d8130c476d13f1f637c47aa
https://doi.org/10.1109/ius46767.2020.9251605

Noninvasive Estimation of Pressure Changes Using 2-D Vector Velocity Ultrasound: An Experimental Study With In Vivo Examples

Autor: Bo Bech, Carlos Armando Villagomez-Hoyos, Jacob Bjerring Olesen, Jørgen Arendt Jensen, Kristoffer Lindskov Hansen, Lars Lönn, Niclas Dechau Moller, Marie Sand Traberg, Caroline Ewertsen, Michael Bachmann Nielsen

Publikováno v: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 65:709-719

A noninvasive method for estimating intravascular pressure changes using 2-D vector velocity is presented. The method was first validated on computational fluid dynamic (CFD) data and with catheter measurements on phantoms. Hereafter, the method was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76788faccca86845d17bf42b112d2841
https://doi.org/10.1109/tuffc.2018.2808328

Super-Resolution Ultrasound Imaging of Rat Kidneys before and after Ischemia-Reperfusion

Autor: Charlotte Mehlin Sorensen, Fredrik Gran, Jørgen Arendt Jensen, Sofie Bech Andersen, Carlos Armando Villagomez Hoyos, Kristoffer Lindskov Hansen, Iman Taghavi, Michael Bachmann Nielsen

Publikováno v: Andersen, S B, Hoyos, C A V, Taghavi, I, Gran, F, Hansen, K L, Sorensen, C M, Jensen, J A & Nielsen, M B 2019, Super-Resolution Ultrasound Imaging of Rat Kidneys before and after Ischemia-Reperfusion . in 2019 IEEE International Ultrasonics Symposium, IUS 2019 ., 8926190, IEEE, IEEE International Ultrasonics Symposium, IUS, vol. 2019-October, pp. 1169-1172, 2019 IEEE International Ultrasonics Symposium, IUS 2019, Glasgow, United Kingdom, 06/10/2019 . https://doi.org/10.1109/ULTSYM.2019.8926190
Bech Andersen, S, Villagómez Hoyos, C A, Taghavi, I, Granberg, F, Hansen, K L, Sørensen, C M, Jensen, J A & Nielsen, M B 2019, Super-Resolution Ultrasound Imaging of Rat Kidneys before and after Ischemia-Reperfusion . in Proceedings of 2019 IEEE International Ultrasonics Symposium . IEEE, pp. 1169-1172, 2019 IEEE International Ultrasonics Symposium, Glasgow, United Kingdom, 06/10/2019 . https://doi.org/10.1109/ULTSYM.2019.8926190

In vivo visualization of the microvasculature is feasible with super-resolution ultrasound imaging (SRI), but the method needs more affirmative data before clinical use. The kidneys have a rich vasculature, and microvascular dysfunction decreases the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3220777189867f5e778cec6407162f9f
https://doi.org/10.1109/ultsym.2019.8926190