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

A Chizari, MJ Schaap, T Knop, YE Boink… - Scientific reports, 2021 - nature.com
Enabling handheld perfusion imaging would drastically improve the feasibility of perfusion
imaging in clinical practice. Therefore, we examine the performance of handheld laser …

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

A Chizari, W Tsong, T Knop… - Journal of biomedical …, 2023 - spiedigitallibrary.org
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 …

Mitigation of Motion Artifacts in Handheld Laser Speckle Contrast Imaging Illustrated on Psoriasis Lesions

A Chizari, MJ Schaap, T Knop… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Background: Handheld laser speckle contrast imaging (LSCI) is crucial in clinical settings,
but motion artifacts (MA) can compromise perfusion image reliability. Current prevention and …

Laser speckle contrast imaging based on scattering bias factor correction

L Zhai, Y Du, X Wu, Y Fu - Optics Communications, 2024 - Elsevier
The existing statistical analysis-based laser speckle contrast imaging (LSCI) methods have
disadvantages in contrast, signal-to-noise ratio (SNR), and sensitive identification of small …

Theoretical and experimental investigations of speckle features based on free-space surface scattering

D Cai, Q Xu, Z Le, H Mao, Y Cao, J Zhou, Y Mo… - Optics …, 2024 - opg.optica.org
Speckle is a significant challenge for laser imaging systems, as it degrades the image
quality. In this study, an improved theoretical model is established to describe the speckle …

Reliability of handheld laser speckle contrast perfusion imaging demonstrated in psoriasis lesions

A Chizari, MJ Schaap, T Knop… - … in Dermatology and …, 2022 - spiedigitallibrary.org
We assessed the reliability of handheld laser speckle contrast perfusion imaging by
evaluating mounted/handheld measurement pairs operated on psoriasis lesions in three …

Speed detection to suppress motion artifacts (MA) in laser speckle contrast imaging (LSCI)

A Chizari, MJ Schaap, T Knop, MMB Seyger… - … on Biomedical Optics, 2023 - opg.optica.org
Laser speckle contrast imaging (LSCI) is an optical technique for noninvasive assessment of
microcirculatory blood flow. LSCI has a broad application in medicine including …

Modelling movement artefacts in handheld laser speckle contrast imaging

A Chizari, W Tsong, T Knop… - … and Fluctuations in …, 2023 - spiedigitallibrary.org
Progress has been made in laser speckle contrast imaging (LSCI) of microcirculatory blood
flow for biology and medicine. However, the underlying reason for occurrence of movement …

Modeling movement artefacts in handheld laser speckle contrast perfusion imaging: influence of wavefront types

A Chizari, W Tsong… - … and Fluctuations in …, 2022 - spiedigitallibrary.org
Movement artefacts distort handheld measurements of laser speckle contrast imaging
(LSCI). Enabling a robust LSCI in handheld use brings convenience for both patients and …

Handheld wireless laser speckle contrast imaging (LSCI) during DIEP flap breast reconstruction: a pilot study

ARD Rook, A Chizari, T Knop, DJ Evers… - … and Sensing XXIV …, 2024 - spiedigitallibrary.org
Perfusion of the flap is essential in Deep Inferior Epigastric Perforator (DIEP) flap breast
reconstruction surgery for flap survival, yet perioperative assessment of flap perfusion to …