Search results for "Indirect immunofluorescence"

showing 2 items of 12 documents

Automated approach for indirect immunofluorescence images classification based on unsupervised clustering method

2018

Autoimmune diseases (ADs) are a collection of many complex disorders of unknown aetiology resulting in immune responses to self-antigens and are thought to result from interactions between genetic and environmental factors. ADs collectively are amongst the most prevalent diseases in the U.S., affecting at least 7% of the population. The diagnosis of ADs is very complex, the standard screening methods provides seeking and recognizing of Antinuclear Antibodies (ANA) by Indirect ImmunoFluorescence (IIF) based on HEp-2 cells. In this paper an automatic system able to identify and classify the Centromere pattern is presented. The method is based on the grouping of centromeres present on the cell…

medical disorderComputer sciencePopulationFeature extraction02 engineering and technologybiomedical optical imagingmedical image processing030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicineImage textureblood0202 electrical engineering electronic engineering information engineeringSegmentationimage texturecellular biophysicsCluster analysiseducationimage segmentationdiseaseeducation.field_of_studyIndirect immunofluorescenceContextual image classificationbusiness.industryfeature extractionPattern recognitionImage segmentationSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)020201 artificial intelligence & image processingfluorescenceComputer Vision and Pattern RecognitionArtificial intelligencebusinessSoftwareimage classificationIET Computer Vision
researchProduct

Analysis of the impact of sex and age on the variation in the prevalence of antinuclear autoantibodies in Polish population: a nationwide observation…

2022

AbstractThe detection of antinuclear autoantibody (ANA) is dependent on many factors and varies between the populations. The aim of the study was first to assess the prevalence of ANA in the Polish adult population depending on age, sex and the cutoff threshold used for the results obtained. Second, we estimated the occurrence of individual types of ANA-staining patterns. We tested 1731 patient samples using commercially available IIFA using two cutoff thresholds of 1:100 and 1:160. We found ANA in 260 participants (15.0%), but the percentage of positive results strongly depended on the cutoff level. For a cutoff threshold 1:100, the positive population was 19.5% and for the 1:160 cutoff th…

musculoskeletal diseasesAdultMaleRMAnti-nuclear antibodyCross-sectional studyIndirect immunofluorescence assayImmunologyPopulationAdult populationPolish populationObservational ResearchAutoimmune DiseasesAgeSex FactorsRheumatologyCutof thresholdPrevalenceImmunology and AllergyCutoffMedicineHumanseducationskin and connective tissue diseasesQH426education.field_of_studybusiness.industryAutoantibodyAge FactorsMiddle AgedQRCutoff thresholdstomatognathic diseasesAntinuclear antibodiesCross-Sectional StudiesIndirect immunofuorescence assayAntibodies AntinuclearQR180Observational studySexFemalePolandbusinessDemographyRheumatology International
researchProduct