0000000000594824

AUTHOR

Antonio Maria Chiarelli

showing 4 related works from this author

PPG/ECG Multisite Combo System Based on SiPM Technology

2019

Two versions of a PPG/ECG combined system have been realized and tested. In a first version a multisite system has been equipped by integrating 3 PPG optodes and 3 ECG leads, whereas in another setup a portable version has been carried out. Both versions have been realized by equipping the optical probes with SiPM detectors. SiPM technology is expected to bring relevant advantages in PPG systems and overcome the limitations of physiological information extracted by state of the art PPG, such as poor sensitivity of detectors used for backscattered light detection and motion artifacts seriously affecting the measurements repeatability and pulse waveform stability. This contribution presents t…

Signal processingComputer scienceSiPM020209 energyPipeline (computing)Detector02 engineering and technologyPPG SiPMs Pattern recognitionSettore ING-INF/01 - ElettronicaSilicon photomultiplierPattern recognitionvisual_artSettore ING-INF/06 - Bioingegneria Elettronica E InformaticaElectronic componentPattern recognition (psychology)0202 electrical engineering electronic engineering information engineeringvisual_art.visual_art_mediumElectronic engineeringWaveformPPGSensitivity (control systems)
researchProduct

Functional Near Infrared Spectroscopy System Validation for Simultaneous EEG-FNIRS Measurements

2019

Functional near-infrared spectroscopy (fNIRS) applied to brain monitoring has been gaining increasing relevance in the last years due to its not invasive nature and the capability to work in combination with other well–known techniques such as the EEG. The possible use cases span from neural-rehabilitation to early diagnosis of some neural diseases. In this work a wireline FPGA–based fNIRS system, that use SiPM sensors and dual-wavelength LED sources, has been designed and validated to work with a commercial EEG machine without reciprocal interference.

medicine.diagnostic_testbusiness.industryComputer sciencePattern recognitionFPGA System on Chip EEG-fNIRS Silicon PhotomultiplierBrain monitoringElectroencephalographySettore ING-INF/01 - ElettronicaSilicon photomultiplierSettore ING-INF/06 - Bioingegneria Elettronica E InformaticamedicineFunctional near-infrared spectroscopySystem validationArtificial intelligencebusiness
researchProduct

Fiberless, Multi-Channel fNIRS-EEG System Based on Silicon Photomultipliers: Towards Sensitive and Ecological Mapping of Brain Activity and Neurovasc…

2020

Portable neuroimaging technologies can be employed for long-term monitoring of neurophysiological and neuropathological states. Functional Near-Infrared Spectroscopy (fNIRS) and Electroencephalography (EEG) are highly suited for such a purpose. Their multimodal integration allows the evaluation of hemodynamic and electrical brain activity together with neurovascular coupling. An innovative fNIRS-EEG system is here presented. The system integrated a novel continuous-wave fNIRS component and a modified commercial EEG device. fNIRS probing relied on fiberless technology based on light emitting diodes and silicon photomultipliers (SiPMs). SiPMs are sensitive semiconductor detectors, whose large…

clinical brain monitoringBrain activity and meditationComputer scienceneurovascular couplingElectroencephalographylcsh:Chemical technologySettore ING-INF/01 - Elettronica01 natural sciencesBiochemistryArticleAnalytical Chemistry010309 optics03 medical and health sciences0302 clinical medicineSilicon photomultiplierNeuroimagingInterference (communication)Component (UML)0103 physical sciencesmedicineHumanslcsh:TP1-1185electroencephalography (EEG)Electrical and Electronic EngineeringSpectroscopyInstrumentationBrain MappingSpectroscopy Near-Infraredmedicine.diagnostic_testEcologyHemodynamicsmultimodal neuroimagingBrainMultimodal neuroimagingElectroencephalographyNeurophysiologyAtomic and Molecular Physics and Opticsmedicine.anatomical_structureFPGA Brain Oxygenation Map clinical brain monitoringScalpSettore ING-INF/06 - Bioingegneria Elettronica E Informaticasilicon photomultipliers.Neurovascular couplingsilicon photomultipliers030217 neurology & neurosurgeryfunctional near infrared spectroscopy (fNIRS)Sensors
researchProduct

Wearable, Fiber-less, Multi-Channel System for Continuous Wave Functional Near Infrared Spectroscopy Based on Silicon Photomultipliers Detectors and …

2019

Development and in-vivo validation of a Continuous Wave (CW) functional Near Infrared Spectroscopy (fNIRS) system is presented. The system is wearable, fiber-less, multi-channel (16×16, 256 channels) and expandable and it relies on silicon photomultipliers (SiPMs) for light detection. SiPMs are inexpensive, low voltage and resilient semiconductor light detectors, whose performances are analogous to photomultiplier tubes (PMTs). The advantage of SiPMs with respect to PMTs is that they allow direct contact with the scalp and avoidance of optical fibers. In fact, the coupling of SiPMs and light emitting diodes (LEDs) allows the transfer of the analog signals to and from the scalp through thin …

PhotomultiplierSpectroscopy Near-InfraredOptical fiberMaterials scienceDynamic rangebusiness.industryDetectorBrainElectroencephalographySignal Processing Computer-Assisted01 natural scienceslaw.invention010309 opticsWearable Electronic Devices03 medical and health sciences0302 clinical medicineSilicon photomultiplierAnalog signallaw0103 physical sciencesOptoelectronicsPhotonicsbusinessOptical filter030217 neurology & neurosurgery2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
researchProduct