A comparative study of colour and perfusion between two different post surgical scars. Do the laser Doppler imager and the colorimeter measure the same features of a scar?

Mermans, Joline F.; Peeters, Wouter J.; Dikmans, Rieky E. G.; Serroyen, Jan; Hulst, René R. J. W. van der; Kerckhove, Eric Van den

doi:10.1111/srt.12014

Cited by 6 publications

(4 citation statements)

References 37 publications

(37 reference statements)

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“…During measurements of 32 hypertrophic scars, a widespread in erythema values is observed, whereas the accompanying blood flow values are mostly beneath 300 PU and thereby low. These data are in agreement with a previous study, presenting that erythema (measured using the skin-colorimeter expressing L * a * b index values) is associated with blood flow, but this correlation is not consistent at different test moments [4]. As a result, it is concluded that LDI and colorimetry are non-interchangeable measurement tools.…”

Section: Laser Doppler Imagingsupporting

confidence: 88%

“…Besides increased thickness or an irregular surface, the amount of erythema and pigmentation appear to have a major impact on the judgment of scar quality by both clinicians and patients. Moreover, the assessment of erythema could be imperative to predict the end of the remodeling phase [4]. Therefore, color measurements are an essential part of scar evaluation, and the associated measurement outcomes are common parameters in scar research.…”

Section: Erythema and Pigmentationmentioning

confidence: 99%

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Objective Assessment Tools: Physical Parameters in Scar Assessment

Jaspers

Moortgat²

2020

Textbook on Scar Management

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Objective assessment tools can be used to evaluate whether (new) scar treatment is effective and to monitor the scar’s response to interventions in clinical practice. It is important to take the clinimetric properties of each tool into account, especially when used for the follow-up of an individual patient. An overview is provided for three important physical scar parameters that can be assessed by noninvasive objective tools: color, elasticity, and perfusion. To assess the color of a scar, an array of tools is available, all using reflectance spectroscopy and determining color by measuring the intensity of reflected light of specific wavelengths. The handheld DSM III ColorMeter offers read-out of erythema and melanin index values as well as CIEL∗a∗b values. The interrater reliability is best for the parameter a∗ of the DSM III ColorMeter. To assess scar elasticity, the Cutometer is the most widely used tool. Scar deformation is measured using negative pressure and reflected in relative and absolute elasticity parameters. On the contrary, firmness or hardness of scar tissue can be quantified by tonometry, a technique that works by exerting pressure on the skin. Lastly, it is of interest to measure scar blood flow (i.e., perfusion) as several treatment regimens work by destructing the microvasculature and/or reducing the blood flow to enhance shrinkage of hypertrophic scar tissue. Laser Doppler imaging and laser speckle imaging can be used to quantify and visualize scar blood flow, but a thorough clinimetric evaluation of these tools in scars is not performed yet.

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Section: Laser Doppler Imagingsupporting

confidence: 88%

Section: Erythema and Pigmentationmentioning

confidence: 99%

Objective Assessment Tools: Physical Parameters in Scar Assessment

Jaspers

Moortgat²

2020

Textbook on Scar Management

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“…The parameter a* represents the spectrum from green to red, with more positive values corresponding to increased erythema. 8,9…”

Section: Methodsmentioning

confidence: 99%

Efficacy and Tolerability of a Novel Biopsy Device for Removing Benign Epidermal Skin Lesions

Yang¹,

Qi²,

Esandrio³

et al. 2015

Dermatologic Surgery

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“…However, by directly measuring erythema with colorimetry, blood flow with laser Doppler imaging (LDI), vessels with immunohistochemistry, and subjective scale of redness with POSAS, respectively, Jaspers et al found only significant relevance between erythema and subjective redness, but no correlations between the others. In contrast, Mermans et al found that erythema was associated with blood flow, but this correlation was not consistent at different test moments [9]. Moreover, Kischer et al reported that most microvessels were occluded in hypertrophic scars due to an excessive number of endothelial cells [10,11].…”

Section: Vascularization Dynamically Participates In the Erythema Devmentioning

confidence: 96%

Scar Symptom: Erythema and Thickness

Yang

Liu

2020

Textbook on Scar Management

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Erythema is a word derived from the Greek erythros, which describes red color of the skin or mucous membrane. In particular, erythema and redness in scar are important as they are closely related to scar symptoms and tissue maturation, and thus can serve as an indicator for scar prognosis. There is rich information in the literature regarding its clinical manifestation, pathological mechanism, and its relation to inflammation and symptoms of pain and itching as well as the clinical treatment. Scar thickness reflects the accumulation of collagen content and there is no necessary association between scar redness and thickness. This chapter mainly focuses on the overview of scar erythema/redness in the aspects of definition, possible mechanism related to clinical manifestation and symptoms, and finally the therapeutic options.

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A comparative study of colour and perfusion between two different post surgical scars. Do the laser Doppler imager and the colorimeter measure the same features of a scar?

Cited by 6 publications

References 37 publications

Objective Assessment Tools: Physical Parameters in Scar Assessment

Objective Assessment Tools: Physical Parameters in Scar Assessment

Efficacy and Tolerability of a Novel Biopsy Device for Removing Benign Epidermal Skin Lesions

Scar Symptom: Erythema and Thickness

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