Horst Complex

dr. A. Chizari (Ata)

Postdoctoral researcher
TNW-BIS-BMPI
Horst Complex ZH264
a.chizari@utwente.nl
+31534891225
Business card
Workdays
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on campus
work from home
out of office

Ata Chizari was born in 1990 in Tehran, Iran. He received his BSc (hons) in Electronics in 2013 from Tafresh university, Tafresh, Iran, and his MSc (hons) in Communication Systems in 2015 from Shahid Beheshti University, Tehran, Iran. From 2014 till 2016 he served as a visitor research assistant at Optical Networks Research Lab, Sharif University of Technology, Tehran, Iran, where he contributed to Optical Wireless Communications and Photonics research topics. He received his PhD in 2021 from the University of Twente, Enschede, The Netherlands where he serves as a postdoctoral researcher at the Biomedical Photonic Imaging. His research interests include laser speckle contrast imaging, laser Doppler perfusion imaging and speckle metrology.

Expertise

  • Medicine and Dentistry

    • Perfusion
    • Scintigraphy
    • Measurement
    • Psoriasis

  • Physics

    • Laser
    • Contrast
    • Diffusivity

  • Engineering

    • Artefact

Organisations

Publications

2025

The LiverTwin: a novel ex-vivo experimental platform for multi-modal image-guided liver cancer treatment studies (2025)[Contribution to conference › Poster] 10th Dutch Biomedical Engineering Conference, BME 2025. van der Hoek, J. L., Krommendijk, M. E., Snoeijink, T. J., Chizari, A., Rook, A., De Bree, K., Greve, J. G. M., Liefers, H. R., Steenbergen, W., Versluis, M., Arens, J., Manohar, S. & Groot Jebbink, E.Mitigation of Motion Artifacts in Handheld Laser Speckle Contrast Imaging Illustrated on Psoriasis Lesions (2025)IEEE transactions on biomedical engineering, 72(1), 70-78. Chizari, A., Schaap, M. J., Knop, T., Seyger, M. M. B. & Steenbergen, W.https://doi.org/10.1109/TBME.2024.3438375

2024

Handheld wireless laser speckle contrast imaging (LSCI) during DIEP flap breast reconstruction: a pilot study (2024)In Optical Diagnostics and Sensing XXIV: Toward Point-of-Care Diagnostics. Article 128500B (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 12850). SPIE. Rook, A. R. D., Chizari, A., Knop, T., Evers, D. J., Rakhorst, H. A. & Steenbergen, W.https://doi.org/10.1117/12.3001925

2023

Speed detection to suppress motion artifacts (MA) in laser speckle contrast imaging (LSCI) (2023)In Optical Coherence Imaging Techniques and Imaging in Scattering Media V. Article 1263213 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12632). SPIE. Chizari, A., Schaap, M. J., Knop, T., Seyger, M. M. B. & Steenbergen, W.https://doi.org/10.1117/12.2672211Prediction of motion artifacts caused by translation in handheld laser speckle contrast imaging (2023)Journal of biomedical optics, 28(4). Article 046005. Chizari, A., Tsong, W., Knop, T. & Steenbergen, W.https://doi.org/10.1117/1.JBO.28.4.046005Modelling movement artefacts in handheld laser speckle contrast imaging (2023)In Dynamics and Fluctuations in Biomedical Photonics XX. Article 1237804 (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 12378). SPIE. Chizari, A., Tsong, W., Knop, T. & Steenbergen, W.https://doi.org/10.1117/12.2650617Speed detection to suppress motion artifacts (MA) in laser speckle contrast imaging (2023)[Contribution to conference › Poster] TechMed Research Day 2023. Chizari, A., Schaap, M. J., Knop, T., Seyger, M. M. B. & Steenbergen, W.

2022

Handheld laser-based perfusion imaging apparatus and method of using said apparatus (2022)[Patent › Patent]. Tom, K., Ata, C. & Wiendelt, S.https://www.sumobrain.com/patents/wipo/Handheld-laser-based-perfusion-imaging/WO2022154660A1.htmlReliability of handheld laser speckle contrast perfusion imaging demonstrated in psoriasis lesions (2022)In Photonics in Dermatology and Plastic Surgery 2022. Article 119340A (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 11934). SPIE. Chizari, A., Schaap, M. J., Knop, T., Seyger, M. M. B. & Steenbergen, W.https://doi.org/10.1117/12.2608663Modeling movement artefacts in handheld laser speckle contrast perfusion imaging: Influence of wavefront types (2022)In Dynamics and Fluctuations in Biomedical Photonics XIX. Article 1195905 (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 11959). SPIE. Chizari, A., Tsong, W., Knop, T. & Steenbergen, W.https://doi.org/10.1117/12.2609849

Research profiles

I am involved in practicum sessions of the master course Biomedical Optics (BMO) serving as a laboratory assistant. This course has been provided by the scientific staff of the Biomedical Photonics Imaging (BMPI) group of the TechMed centre.

Affiliated study programs

Current projects

Motion artefacts in laser speckle contrast imaging of blood flow

Suppression of motion artefacts caused by hand-arm vibrations during measurement with a handheld device

A handheld device for optical microcirculatory perfusion imaging

An affordable, quantitative, robust, and handheld solution for imaging skin perfusion

An optical solution to skin perfusion imaging

As quantitative as laser Doppler perfusion imaging and as simple as laser speckle contrast imaging

In the press

- A summary of my PhD research "Hand-held laser speckle imaging for flexible medical diagnostics". U-Today, October 22, 2021

- Being a team member of the PIHC granted project "Improving free flap transplantations with the use of handheld laser speckle perfusion imaging". Tubantia interview March 2021

- A member of ZPV Piranha swimming team "The Netherlands student swimming competition (NSZK) 1, in Nijmegen". U-Today, October 22, 2018

Address

University of Twente

Horst Complex (building no. 20), room ZH264
De Horst 2
7522 LW Enschede
Netherlands

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