magistrsko delo
Sašo Zemljič (Author), Aleš Holobar (Mentor), Boris Cigale (Co-mentor)

Abstract

Bližnja infrardeča spektroskopija omogoča neinvazivno spremljanje oksigenacije tkiv. Zaradi optičnih lastnosti človeškega tkiva in vsebovanih kromofor, je svetloba bližnje infrardeče regije posebej primerna za spremljanje koncentracij oksi- in deoksihemoglobina. V magistrskem delu zasnujemo in izdelamo sistem za opravljanje meritev stopenj oksigenacije s pomočjo bližnje infrardeče spektroskopije. Izdelana naprava sestoji iz optoelektronskega senzorja in krmilnega vezja. Optoelektronski senzor sestavljajo dvobarvna svetleča dioda, ki oddaja svetlobo z valovnima dolžinama 750 in 850 nm ter par različno oddaljenih fotodiod. Za analogno digitalno pretvorbo signalov optoelektronskega senzorja skrbi krmilno vezje, ki zajete signale pošilja na osebni računalnik, kjer jih dekomponiramo in izračunamo relativne spremembe stopnje oksigenacije. Delovanje izdelanega sistema smo preverili z večkratnimi meritvami somatske in cerebralne oksigenacije zdravega preiskovanca.

Keywords

biomedicinske merilne metode;računalniško podprto merjenje;merjenje oksigenacije;bližnja infrardeča spektroskopija;somatska oksigenacija;cerebralna oksigenacija;optoelektronski senzorji;krmilno vezje;zajemanje signalov;obdelava signalov;magistrske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UM FERI - Faculty of Electrical Engineering and Computer Science
Publisher: [S. Zemljič]
UDC: [004:616-71]:615.835(043.2)
COBISS: 20703510 Link will open in a new window
Views: 828
Downloads: 175
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: A low-cost system for nirs-based assessment of skin, adipose and brain tissue oxygenation
Secondary abstract: Near-infrared spectroscopy supports non-invasive monitoring of tissue oxygenation. Due to the optical properties of human tissue and its contained chromophores, the light of near infrared region is especially suitable for monitoring concentrations of oxy- and deoxy hemoglobin. In this master's thesis we describe the design and implementation of a system for measuring oxygenation levels using near-infrared spectroscopy. This device comprises of an optoelectronic sensor and control circuit. Optoelectronic sensor is composed of a bi-color light emitting diode which emits light with wavelengths of 750 and 850 nm and a couple of differently spaced photodiodes. The analog to digital conversion of the optoelectronic sensor’s signal is carried out on the control circuit, which sends signals to the personal computer where they are decomposed and processed by specific algorithms to calculate the relative change in oxygenation level. We tested the designed system by performing multiple measurements of somatic and cerebral oxygenation on a healthy young subject.
Secondary keywords: biomedical measurement methods;measurement of oxigenation;near-infrared spectroscopy;somatic oxygenation;cerebral oxygenation;root mean square;
URN: URN:SI:UM:
Type (COBISS): Master's thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za elektrotehniko, računalništvo in informatiko, Računalništvo in informacijske tehnologije
Pages: XIV, 91 str.
ID: 10836897