32 research outputs found

    Quantitative and qualitative Ductus Venosus blood flow evaluation in the screening for Trisomy 18 and 13 — suitability study

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    Objectives: The objective of the paper is the suitability assessment of screening for Trisomy 18 and 13 on the basis ofnuchal translucency (NT) measurement, Fetal Heart Rate (FHR), double test, quantitative [Ductus Venosus (DV) PulsatilityIndex for Veins (PIV)] and qualitative (the A-wave assessment) blood flow evaluation in the DV.Material and methods: The study was performed in 7296 singleton pregnancies. In each fetus NT, FHR, DV-PIV wereexamined. Double test from maternal blood was examined. These ultrasound and biochemical factors were in combinedscreening investigated. Additional doppler ultrasound markers such as abnormal a-wave in Ductus Venosus and PusatilityIndex for Veins of Ductus Venosus were and their impact on Trisomies 18 and 13 screening were examined.Results: Two groups of patients were compared — with chromosomal normal and chromosomal abnormalities — Trisomy18 and 13. Detection Rate of Trisomies 18 and 13 at the risk cutoff 1/300 using combined screening was 90.2% and FPR was6%. Detection Rates of examined chromosomal abnormalities using contingent screening were: 92.1% using DV abnormala-wave and 94.84% using DV-PIV. FPR’s for booths parameters 5.8% and 5.4% respectively.Conclusions: Quantitative analysis of the flow — assessment of DV-PIV in the first trimester significantly influences theimprovement of screening values focusing on Trisomy 18 and 13 detection

    Development of a new photoplethysmography system and its tests

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    Development of a new photoplethysmography system and its tests. Confidential project.A novel set of instrumentation and algorithms for an image based photoplesthymography system for non-invasive and noncontact measurement of vital signs is developed and herein reported. Signal processing was enhanced by implementing motion compensation and heart rate tracking. The system is designed for applications for use in Neonatal Intensive Care Units. Future work on in vivo validation and the tuning of the algorithms is neede

    Development of a new photoplethysmography system and its tests

    No full text
    Development of a new photoplethysmography system and its tests. Confidential project.A novel set of instrumentation and algorithms for an image based photoplesthymography system for non-invasive and noncontact measurement of vital signs is developed and herein reported. Signal processing was enhanced by implementing motion compensation and heart rate tracking. The system is designed for applications for use in Neonatal Intensive Care Units. Future work on in vivo validation and the tuning of the algorithms is neede

    Classification of RSS-Formatted Documents Using Full Text Similarity Measures

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