magistrsko delo
Povzetek
Uvod: Pri preiskavah s pozitronsko emisijsko tomografijo v kombinaciji z računalniško
tomografijo (PET/CT preiskavah) se uporablja ionizirajoče sevanje višjih energij kot pri
klasičnih nuklearno medicinskih preiskavah. Posledično bi zdravstveni delavci, ki sodelujejo
pri PET/CT preiskavah, lahko prejeli večje doze sevanja kot pri klasičnih nuklearno
medicinskih preiskavah.
Namen: Namen magistrske naloge je bil ugotoviti, ali so se po uvedbi PET/CT preiskav na
Kliniki za nuklearno medicino (KNM) v Univerzitetnem kliničnem centru v Ljubljani prejete
osebne doze sevanja pri zdravstvenih delavcih, ki so sodelovali pri izvedbi PET/CT preiskav,
spremenile.
Material in metode: Delavci – v raziskavo smo vključili 27 delavcev (7 zdravnikov, 10
diplomiranih inženirjev radiologije, 5 farmacevtov in 5 diplomiranih medicinskih sester) z
diagnostičnega oddelka KNM. V letih 2008 in 2009 so omenjeni delavci sodelovali pri
klasičnih nuklearno medicinskih preiskavah, v letih 2010–2012 pa so poleg tega sodelovali
tudi pri PET/CT preiskavah. Metode dela – za zgoraj navedene skupine delavcev smo
poiskali in analizirali podatke dozimetričnih meritev za obdobje 2008–2012, ki jih je opravil
Zavod za varstvo pri delu (ZVD). Poleg tega smo zdravnikom, diplomiranim inženirjem
radiologije in farmacevtom, ki so sodelovali pri PET/CT preiskavah, določili dnevne doze
sevanja. To smo naredili s pomočjo elektronskih dozimetrov, ki smo jih predhodno umerili.
Rezultati: Zaradi sodelovanja pri PET/CT preiskavah se je letno prejeta doza sevanja
statistično značilno povečala pri zdravnikih – leta 2009 so prejeli povprečno 0,18 mSv, leta
2010 pa 0,39 mSv (p= 0,005) in pri diplomiranih inženirjih radiologije – leta 2009 so prejeli
0,82 mSv, leta 2010 pa 1,04 mSv (p= 0,034). Zaradi sodelovanja pri PET/CT preiskavah se
letno prejete doze sevanja pri farmacevtih in diplomiranih medicinskih sestrah niso statistično
značilno spremenile. Povprečna dnevna doza sevanja, ki jo je prejel zdravnik zaradi
sodelovanja pri PET/CT preiskavah, je znašala 3,1±2,4 μSv. Dva radiološka inženirja, ki sta
sodelovala pri PET/CT preiskavah sta dnevno prejela skupno 5,1±3,4 μSv, farmacevt pa <1
μSv. Povprečna doza sevanja, ki jo je prejel zdravnik pri eni PET/CT preiskavi, je znašala
0,34 μSv. Doza sevanja, ki jo je prejel diplomiran inženir radiologije, pa 0,28 μSv.
Zaključek: Zaradi uvedbe PET/CT preiskav so se letno prejete doze sevanja pri delavcih na
KNM zmerno povečale. Statistično značilno povečanje je bilo prisotno pri zdravnikih in
diplomiranih inženirjih radiologije. Pri farmacevtih in diplomiranih medicinskih sestrah se
letno prejete doze sevanja zaradi uvedbe PET/CT preiskav niso pomembneje spremenile.
Povprečne doze sevanja, ki so jih pri eni PET/CT preiskavi prejeli delavci na KNM, so
manjše od navedb v literaturi. Po našem mnenju je to predvsem posledica dobre organizacije
dela in doslednega upoštevanja načel varstva pred ionizirajočimi sevanji.
Ključne besede: PET/CT preiskava, doze sevanja, zdravstveni delavci, radiološki inženir,
nuklearna medicina
Ključne besede
magistrska dela;radiološka tehnologija;preiskava PET/CT;doze sevanja;zdravstveni delavci;
Podatki
Jezik: |
Slovenski jezik |
Leto izida: |
2016 |
Tipologija: |
2.09 - Magistrsko delo |
Organizacija: |
UL ZF - Zdravstvena fakulteta |
Založnik: |
[A. Bojčić] |
UDK: |
616-07 |
COBISS: |
5251179
|
Št. ogledov: |
1926 |
Št. prenosov: |
779 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
Radiation doses of employees of Nuclear Medicine Department before and after introduction of PET/CT |
Sekundarni povzetek: |
Introduction: In positron emission tomography / computed tomography (PET/CT)
examinations ionising radiation of higher energies is used compared to classical nuclear
medicine examinations. Consequentially, health care workers, who work with PET/CT, could
receive higher radiation doses than health care workers who work in classical nuclear
medicine.
Purpose: The purpose of the master's thesis was to explore if introduction of PET/CT
examination procedures to the Department for Nuclear Medicine (KNM) at the University
Medical Centre in Ljubljana has affected in elevated personal radiation doses of health care
workers who are executing PET/CT examinations.
Materials and methods: The research included 27 workers from the diagnostic centre of
KNM: 7 physicians, 10 radiologic technologists, 5 radiopharmacists, and 5 qualified nurses.
In the years 2008 and 2009 these workers were performing classical nuclear medicine
examinations, whereas in the years from 2010 to 2012 they also worked with PET/CT
examinations. Research methods – we analysed the radiation dose measurements for the
period 2008–2012, which had been measured with personal thermoluminiscent dosimeters
and read by the Institute Occupational Safety. Additionally, we measured daily personal
radiation doses for physicians, radiologic technologists, and radiopharmacists who cooperated
in PET/CT examinations. We used calibrated electronic dosimeters.
Results: As a consequence of cooperation in PET/CT examination procedures, the annual
radiation dose has significantly increased for physicians (mean dose 0.18 mSv in year 2009
and 0.39 mSv in 2010; p = 0.005) and for the radiologic technologists (mean dose 0.82 mSv
in 2009 and in 1.04 mSv in 2010; p = 0.034). The radiation doses for radiopharmacists and
qualified nurses have not significantly changed.
Mean daily radiation dose, received by a physician performing PET/CT examination
procedures, was 3.1±2.4 μSv. Two radiologic technologists who cooperated in PET/CT
examinations as a team, received combined daily dose of 5.1±3.4 μSv and the
radiopharmacist received <1 μSv. A mean radiation dose, received as a consequence of
collaboration in a single PET/CT examination, was 0.34 μSv for a physician and 0.28 μSv for
radiologic technologist.
Conclusion: Following the introduction of PET/CT examinations, the annual radiation doses
have increased for health care workers at KNM. Statistically significant increase was
measured for physicians and radiologic technologists. For radiopharmacists and qualified
nurses the increase was not statistically significant. Mean radiation doses, received by
workers in one single PET/CT examination, were lower than measurements reported in the
literature. This observation might be a consequence of good organization of work and
consistent abiding with the ionising radiation protection rules.
Keywords: PET/CT examination, personal radiation dose, health care workers, radiologic
technologist, nuclear medicine |
Sekundarne ključne besede: |
master's theses;radiologic technology;PET/CT examination;personal radiation doses;health care workers; |
Vrsta dela (COBISS): |
Magistrsko delo/naloga |
Študijski program: |
0 |
Konec prepovedi (OpenAIRE): |
1970-01-01 |
Komentar na gradivo: |
Univ. v Ljubljani, Zdravstvena fak., Oddelek za radiološko tehnologijo |
Strani: |
73 f. |
ID: |
9592585 |