Laser Speckle Contrast Imaging for the Objective Assessment of Blood Perfusion in Keloids Treated With Dual-Wavelength Laser Therapy

2021 ◽  
Vol 47 (4) ◽  
pp. e117-e121
Author(s):  
Chi Xu ◽  
Wenyun Ting ◽  
Yue Teng ◽  
Xiao Long ◽  
Xiaojun Wang
Keyword(s):  
Laser Therapy ◽  
Objective Assessment ◽  
Blood Perfusion ◽  
Laser Speckle ◽  
Dual Wavelength ◽  
Contrast Imaging ◽  
Laser Speckle Contrast Imaging ◽  
Dual Wavelength Laser ◽  
Speckle Contrast

scholarly journals Dual-Wavelength Laser Speckle Contrast Imaging (dwLSCI) Improves Chronic Measurement of Superficial Blood Flow in Hands

Sensors ◽  
2017 ◽  
Vol 17 (12) ◽  
pp. 2811 ◽  
Author(s):  
Lingke Zhang ◽  
Li Ding ◽  
Miao Li ◽  
Xiaoli Zhang ◽  
Diansan Su ◽  
...  
Keyword(s):  
Blood Flow ◽  
Laser Speckle ◽  
Dual Wavelength ◽  
Contrast Imaging ◽  
Laser Speckle Contrast Imaging ◽  
Dual Wavelength Laser ◽  
Speckle Contrast

scholarly journals Blood perfusion in Hewes tarsoconjunctival flaps in pigs measured by laser speckle contrast imaging

JPRAS Open ◽  
2018 ◽  
Vol 18 ◽  
pp. 98-103 ◽  
Author(s):  
Cu Dinh Ansson ◽  
Rafi Sheikh ◽  
Ulf Dahlstrand ◽  
Jenny Hult ◽  
Sandra Lindstedt ◽  
...  
Keyword(s):  
Blood Perfusion ◽  
Laser Speckle ◽  
Contrast Imaging ◽  
Laser Speckle Contrast Imaging ◽  
Speckle Contrast

scholarly journals Use of Laser Speckle Contrast Imaging to Assess Digital Microvascular Function in Primary Raynaud Phenomenon and Systemic Sclerosis: A Comparison Using the Raynaud Condition Score Diary

2015 ◽  
Vol 42 (7) ◽  
pp. 1163-1168 ◽  
Author(s):  
John D. Pauling ◽  
Jacqueline A. Shipley ◽  
Darren J. Hart ◽  
Anita McGrogan ◽  
Neil J. McHugh
Keyword(s):  
Systemic Sclerosis ◽  
Objective Assessment ◽  
Microvascular Function ◽  
Laser Speckle ◽  
Contrast Imaging ◽  
Raynaud Phenomenon ◽  
Laser Speckle Contrast Imaging ◽  
Speckle Contrast ◽  
Condition Score ◽  
Cold Challenge

Objective.Evaluate objective assessment of digital microvascular function using laser speckle contrast imaging (LSCI) in a cross-sectional study of patients with primary Raynaud phenomenon (RP) and systemic sclerosis (SSc), comparing LSCI with both infrared thermography (IRT) and subjective assessment using the Raynaud Condition Score (RCS) diary.Methods.Patients with SSc (n = 25) and primary RP (n = 18) underwent simultaneous assessment of digital perfusion using LSCI and IRT with a cold challenge on 2 occasions, 2 weeks apart. The RCS diary was completed between assessments. The relationship between objective and subjective assessments of RP was evaluated. Reproducibility of LSCI/IRT was assessed, along with differences between primary RP and SSc, and the effect of sex.Results.There was moderate-to-good correlation between LSCI and IRT (Spearman rho 0.58–0.84, p < 0.01), but poor correlation between objective assessments and the RCS diary (p > 0.05 for all analyses). Reproducibility of IRT and LSCI was moderate at baseline (ICC 0.51–0.63) and immediately following cold challenge (ICC 0.56–0.86), but lower during reperfusion (ICC 0.3–0.7). Neither subjective nor objective assessments differentiated between primary RP and SSc. Men reported lower median daily frequency of RP attacks (0.82 vs 1.93, p = 0.03). Perfusion using LSCI/IRT was higher in men for the majority of assessments.Conclusion.Objective and subjective methods provide differing information on microvascular function in RP. There is good convergent validity of LSCI with IRT and acceptable reproducibility of both modalities. Neither subjective nor objective assessments could differentiate between primary RP and SSc. Influence of sex on subjective and objective assessment of RP warrants further evaluation.

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