0000000000360098

AUTHOR

Thierry Olivry

0000-0003-1399-0034

showing 3 related works from this author

Skimager for the objective erythema estimation in atopic dogs

2020

In this study, the severity of canine skin erythema was assessed objectively for the first time. Atopic dermatitis (AD) is a common canine inflammatory and pruritic skin disease associated with an allergic reaction to exogenous allergens. The monitoring of skin erythema over time with lesion severity scales like the CADESI-4 is an essential diagnostic and research tool, especially for clinical trials. Currently, the erythema assessment is subjective due to visual estimation. In our study, we calculated the erythema index (EI) in 14 atopic dogs based on the analysis of multispectral skin images taken with the Skimager device. The relationship between the EI and a visual erythema estimation w…

Skin erythemamedicine.medical_specialtyAllergic reactionErythema040301 veterinary sciencesErythema IndexOptical measurementsErythema severity01 natural sciences0403 veterinary scienceLesionMultispectral imagingDogsDisease severity scalesmedicineVisual estimationAtopic dermatitisintegumentary systembusiness.industry010401 analytical chemistry04 agricultural and veterinary sciencesAtopic dermatitismedicine.diseaseDermatology3. Good health0104 chemical sciencesCADESI-4medicine.symptombusinessSkin lesionSkimager
researchProduct

Evaluation of skin erythema severity by dermatoscopy in dogs with atopic dermatitis

2021

To estimate the extent and severity of atopic dermatitis (AD)-related skin lesions, clinical trials enrolling dogs with AD often use categorical scales such as the Canine Atopic Dermatitis Extent and Severity Index, 4To validate an optical set-up with a smartphone and a dermatoscope for the objective estimation of skin erythema severity in atopic dogs.Forty-three dogs with AD.An erythema index (EI) was calculated from calibrated skin images and compared to the dermatologist's erythema severity estimate using the erythema grading scale used in the CADESI-04, as well as an ad hoc Visual Analog Scale (VAS) with a continuous palette of red shades.We found a strong correlation based on the Spear…

medicine.medical_specialtySkin erythemaErythema040301 veterinary sciencesVisual analogue scaleDermoscopySeverity of Illness IndexDermatitis Atopic0403 veterinary scienceLesion030207 dermatology & venereal diseases03 medical and health sciencesDogs0302 clinical medicineAnimalsMedicineClinical significanceDog DiseasesDermatoscopyintegumentary systemGeneral Veterinarymedicine.diagnostic_testbusiness.industry04 agricultural and veterinary sciencesAtopic dermatitismedicine.diseaseDermatologyClinical trialErythemamedicine.symptombusinessVeterinary Dermatology
researchProduct

Evaluation of Erythema Severity in Dermatoscopic Images of Canine Skin: Erythema Index Assessment and Image Sampling Reliability.

2021

The regular monitoring of erythema, one of the most important skin lesions in atopic (allergic) dogs, is essential for successful anti-allergic therapy. The smartphone-based dermatoscopy enables a convenient way to acquire quality images of erythematous skin. However, the image sampling to evaluate erythema severity is still done manually, introducing result variability. In this study, we investigated the correlation between the most popular erythema indices (EIs) and dermatologists’ erythema perception, and we measured intra- and inter-rater variability of the currently-used manual image-sampling methods (ISMs). We showed that the EIBRG, based on all three RGB (red, green, and blue) channe…

Image samplingSkin erythemamedicine.medical_specialtyErythema040301 veterinary sciencesIntraclass correlationsmartphone dermatoscopyintraclass correlation coefficientlcsh:Chemical technologyBiochemistrySpearman's rank correlation coefficientSeverity of Illness IndexAnalytical ChemistrySpecimen Handling0403 veterinary science030207 dermatology & venereal diseases03 medical and health sciences0302 clinical medicineDogsImage Interpretation Computer-Assistedmultispectral imagingMedicineerythema indexAnimalslcsh:TP1-1185Dog DiseasesElectrical and Electronic EngineeringInstrumentationReliability (statistics)SkinDermatoscopymedicine.diagnostic_testintegumentary systembusiness.industryCommunicationReproducibility of Results04 agricultural and veterinary sciencesCADESI4DermatologyAtomic and Molecular Physics and Optics3. Good healthErythemacanine atopic dermatitiserythema severityimage samplingmedicine.symptombusinessSkin lesiondisease severity scalesSensors (Basel, Switzerland)
researchProduct