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[{"key": "dc.contributor.advisor", "value": "Kalvas, Taneli", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Leskinen, Henri", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Aarnio, Jussi", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Ahokas, Jasmiina", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2023-11-01T07:02:28Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2023-11-01T07:02:28Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2023", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/91193", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Keskim\u00e4\u00e4r\u00e4isen elini\u00e4n kasvaessa tarvittavien kardiologisten toimenpiteiden m\u00e4\u00e4r\u00e4 on lis\u00e4\u00e4ntynyt. Hoitohenkil\u00f6kunnan altistumisaika s\u00e4teilylle on n\u00e4in ollen my\u00f6s kasvanut, jonka vuoksi s\u00e4teilyturvallisen toiminnan jatkuva kehitt\u00e4minen on t\u00e4rke\u00e4\u00e4. Sirontakartan muodostaminen on er\u00e4s tapa kehitt\u00e4\u00e4 s\u00e4teilyturvallista toimintaa sairaalaymp\u00e4rist\u00f6ss\u00e4 ja sen avulla suojien sijoittelu voidaankin toteuttaa optimoidusti. Sirontakartta on mahdollista muodostaa kardiologisessa toimenpidesalissa k\u00e4ytt\u00e4en l\u00e4pivalaisupulssia, jonka aikana fantomista eli keinotekoisesta testikohteesta sironnutta s\u00e4teily\u00e4 mitataan huoneen eri kohdissa ja korkeuksilla. \nT\u00e4ss\u00e4 tutkielmassa syvennyttiin erityisesti koronaariangiografiasalissa l\u00e4pivalaisun k\u00e4ytt\u00f6\u00f6n liittyviin s\u00e4teilyturvallisuustekij\u00f6ihin ja suojausmahdollisuuksiin. Osana tutkielmaa mitattiin sironnutta s\u00e4teily\u00e4 koronaariangiografiasalissa Mikkelin keskussairaalassa kahdella eri l\u00e4pivalaisulaitteen tutkimuskulmalla k\u00e4ytt\u00e4en tavanomaisia lyijysuojia. Tutkielmassa tarkasteltiin lis\u00e4ksi mahdollisia toissijaisia sirontakohteita koronaariangiografiasalissa. \nTutkielman loppup\u00e4\u00e4telm\u00e4n\u00e4 havaittiin sironneen s\u00e4teilyn suunnan ja suuruuden olevan jokseenkin ep\u00e4intuitiivista ja n\u00e4in ollen sirontamittausten tekeminen auttoi henkil\u00f6st\u00f6\u00e4 toimimaan s\u00e4dehygieenisesti koronaariangiografiasalissa. Sirontakartoista pystyttiin p\u00e4\u00e4ttelem\u00e4\u00e4n s\u00e4teilyn siroaminen my\u00f6s muista suunnista kuin operoivan l\u00e4\u00e4k\u00e4rin etupuolelta, joka vastasi alkuper\u00e4ist\u00e4 hypoteesia. Lis\u00e4ksi tutkimuksessa havaittiin, ett\u00e4 sironneen s\u00e4teilyn annosnopeus oli suurinta, kun k\u00e4ytettiin syvi\u00e4 kallistuksia, kuten LAO 90 astetta. Tutkimustulosten pohjalta j\u00e4rjestettiin henkil\u00f6st\u00f6lle lis\u00e4koulutusta suojainten k\u00e4ytt\u00e4miseen sek\u00e4 sijoittumiseen toimenpidesalissa.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "As the average life expectancy increases, the number of necessary cardiological\nprocedures has increased causing increased radiation exposure time for the personnel, which is why the continuous development of radiation safety of these procedures is important. Creating a scattering map is one way to develop the safe use of radiation in the hospital environment, and with it, shield placement can be carried out in an optimized way. It is possible to create a scattering map in the cardiology operating room by using a fluoroscopy equipment and a phantom, where during radiation pulse the scattered radiation from the phantom is measured at different points and heights in the room.\nIn this thesis the radiation safety factors and protection possibilities related to\nthe use of a fluoroscopy pulse in the coronary angiography room were examined.\nThe main goal of this study was to measure scattered radiation in the coronary\nangiography room at Mikkeli Central Hospital with two different treatment angles\nusing standard lead shields. Additionally, secondary scattering sources were studied.\nAs the final conclusion of this study, it was found that the direction and magnitude\nof the scattered radiation was unintuitive, and therefore, making the scattering\nmeasurements helped the personnel to operate in a more radiation safely in the\ncoronary angiography room. From the scattering mapping, it was possible to conclude that the radiation is also scattered from directions other than the front of the operating doctor, which was parallel with the initial hypothesis. In addition, conclusion was that the dose rate of scattered radiation is highest when deep tilts are used, such as the LAO 90 degree. Based on these measurements, additional instructions were organized for the staff.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2023-11-01T07:02:28Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2023-11-01T07:02:28Z (GMT). No. of bitstreams: 0\n Previous issue date: 2023", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "61", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": null, "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "angiografia", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "sironnut s\u00e4teily", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "sirontakartta", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "l\u00e4pivalaisu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Sironneen s\u00e4teilyn kartoitus koronaariangiografiasalissa", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202311017215", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Fysiikan laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Physics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Soveltava fysiikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Applied Physics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.collaborator", "value": "public", "language": "", "element": "contractresearch", "qualifier": "collaborator", "schema": "yvv"}, {"key": "yvv.contractresearch.funding", "value": "4200", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "yvv.contractresearch.initiative", "value": "student", "language": "", "element": "contractresearch", "qualifier": "initiative", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.copyright", "value": "\u00a9 The Author(s)", "language": null, "element": "rights", "qualifier": "copyright", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4023", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "s\u00e4teily", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "s\u00e4teilyturvallisuus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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