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Akademický článek

Assessment of flow within developing chicken vasculature and biofabricated vascularized tissues using multimodal imaging techniques

Autor: Prasanna Padmanaban, Ata Chizari, Tom Knop, Jiena Zhang, Vasileios D. Trikalitis, Bart Koopman, Wiendelt Steenbergen, Jeroen Rouwkema

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)

Abstract Fluid flow shear stresses are strong regulators for directing the organization of vascular networks. Knowledge of structural and flow dynamics information within complex vasculature is essential for tuning the vascular organization within en

Externí odkaz: https://doaj.org/article/612cedac0bab40118651345043a33cd6

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Akademický článek

Handheld versus mounted laser speckle contrast perfusion imaging demonstrated in psoriasis lesions

Autor: Ata Chizari, Mirjam J. Schaap, Tom Knop, Yoeri E. Boink, Marieke M. B. Seyger, Wiendelt Steenbergen

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)

Abstract Enabling handheld perfusion imaging would drastically improve the feasibility of perfusion imaging in clinical practice. Therefore, we examine the performance of handheld laser speckle contrast imaging (LSCI) measurements compared to mounted

Externí odkaz: https://doaj.org/article/17b3ed87cb9f49e18dafb2c33515d3b1

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Prediction of motion artifacts caused by translation in handheld laser speckle contrast imaging

Autor: Ata Chizari, Wilson Tsong, Tom Knop, Wiendelt Steenbergen

Publikováno v: Journal of biomedical optics, 28(4):046005. SPIE

Significance: In handheld laser speckle contrast imaging (LSCI), motion artifacts (MA) are inevitable. Suppression of MA leads to a valid and objective assessment of tissue perfusion in a wide range of medical applications including dermatology and b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f0d07ec2d955814fbd2c440028b6dbc
http://www.scopus.com/inward/record.url?scp=85153426925&partnerID=8YFLogxK

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Perfusion measured by laser speckle contrast imaging as a predictor for expansion of psoriasis lesions

Autor: Mirjam J Schaap, Marieke M B Seyger, Wiendelt Steenbergen, Hans Groenewoud, Piet E.J. van Erp, Tom Knop, Ata Chizari, Elke M G J de Jong

Publikováno v: Skin Research and Technology, 28, 1, pp. 104-110
Skin research and technology, 28(1), 104-110. Wiley-Blackwell
Skin Research and Technology, 28, 104-110

Contains fulltext : 248292.pdf (Publisher’s version ) (Open Access) BACKGROUND: Skin microvasculature changes are crucial in psoriasis development and correlate with perfusion. The noninvasive Handheld Perfusion Imager (HAPI) examines microvascular

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1024327af3f22b7d0f1a394a123e50d
http://www.scopus.com/inward/record.url?scp=85116464957&partnerID=8YFLogxK

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Assessment of flow within developing chicken vasculature and biofabricated vascularized tissues using multimodal imaging techniques

Autor: Tom Knop, Prasanna Padmanaban, Wiendelt Steenbergen, Vasileios D. Trikalitis, Bart F.J.M. Koopman, Ata Chizari, Jiena Zhang, Jeroen Rouwkema

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
Scientific reports, 11:18251, 1-14. Nature Publishing Group
Scientific Reports

Fluid flow shear stresses are strong regulators for directing the organization of vascular networks. Knowledge of structural and flow dynamics information within complex vasculature is essential for tuning the vascular organization within engineered

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce16d6a665dbd11e62eb077d51c307de
https://doaj.org/article/612cedac0bab40118651345043a33cd6

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Influence of wavefront types on movement artefacts in handheld laser speckle contrast perfusion imaging

Autor: Ata Chizari, Wiendelt Steenbergen, Sven Schwieters, Wilson Tsong, Tom Knop

Publikováno v: OSA Continuum, 4(6), 1875-1888. Optical Society of America

Laser speckle contrast imaging (LSCI) is a non-invasive and affordable technique to visualize skin perfusion. Handheld use of the system facilitates measurements on various skin areas in a flexible manner. However, movement artefacts caused by handhe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f434d5e7751c6c3bcfbbcd4ec0f3bfa
https://doi.org/10.1364/osac.420479

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Exploration of movement artefacts in handheld laser speckle contrast perfusion imaging

Autor: Ferdinand van der Heijden, Beril Sirmacek, Wiendelt Steenbergen, Ata Chizari, Tom Knop

Publikováno v: Biomedical optics express, 11(5), 2352-2365. The Optical Society
Biomed Opt Express

Functional performance of handheld laser speckle contrast imaging (LSCI) is compromised by movement artefacts. Here we quantify the movements of a handheld LSCI system employing electromagnetic (EM) tracking and measure the applied translational, til

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37f9b65feea13a7a1330134f1cc3f9be
https://research.utwente.nl/en/publications/666d3a7f-6e9f-464a-a26f-3f9c59c90a21

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Statistical studies of fading in underwater wireless optical channels in the presence of air bubble, temperature, and salinity random variations

Autor: Pooya Nabavi, Sajjad Abdollahramezani, Jawad A. Salehi, Alireza Parsay, Ali Mirani, Ata Chizari, Bahman Abolhassani, Pirazh Khorramshahi, Mohammad Vahid Jamali

Publikováno v: IEEE Transactions on Communications, 66(10):8370053, 4706-4723. IEEE

Optical signal propagation through underwater channels is affected by three main degrading phenomena, namely, absorption, scattering, and fading. In this paper, we experimentally study the statistical distribution of intensity fluctuations in underwa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fa7b8018050f0942ab1c7358ced493e
http://www.scopus.com/inward/record.url?scp=85047824166&partnerID=8YFLogxK

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Performance Analysis of Multi-Hop Underwater Wireless Optical Communication Systems

Autor: Ata Chizari, Mohammad Vahid Jamali, Jawad A. Salehi

Publikováno v: IEEE Photonics Technology Letters. 29:462-465

In this letter, we analytically evaluate the end-to-end bit error rate (BER) of point-to-point multi-hop underwater wireless optical communication (UWOC) systems with respect to all degrading effects of the UWOC channel, namely absorption, scattering

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d2d571afa15ae8436f2b385ac8f24e2
https://doi.org/10.1109/lpt.2017.2657228

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GOPA: Geometrical Optics Positioning Algorithm

Autor: Hamid Hosseinianfar, Ata Chizari, Jawad A. Salehi

Publikováno v: 2019 IEEE International Conference on Consumer Electronics, ICCE 2019

In this paper, we propose an accurate visible light indoor localization system for a smartphone using the commercial light-emitting diode (LED) panels which are used primarily for lighting. Each of designed lighting panel contains a space-colorcoded

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d22a7a3618baef459c520546eed6b1f
https://doi.org/10.1109/icce.2019.8856168

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