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master's thesis
Utjecaj pitch faktora na kvalitetu CT snimanja
2018. urn:nbn:hr:176:438908
Horvatinec, Dražen
University of Split
University Department of Health Studies

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Horvatinec, D. (2018). Utjecaj pitch faktora na kvalitetu CT snimanja (Master's thesis). Split: University of Split. Retrieved from https://urn.nsk.hr/urn:nbn:hr:176:438908

Horvatinec, Dražen. "Utjecaj pitch faktora na kvalitetu CT snimanja." Master's thesis, University of Split, 2018. https://urn.nsk.hr/urn:nbn:hr:176:438908

Horvatinec, Dražen. "Utjecaj pitch faktora na kvalitetu CT snimanja." Master's thesis, University of Split, 2018. https://urn.nsk.hr/urn:nbn:hr:176:438908

Horvatinec, D. (2018). 'Utjecaj pitch faktora na kvalitetu CT snimanja', Master's thesis, University of Split, accessed 04 March 2025, https://urn.nsk.hr/urn:nbn:hr:176:438908

Horvatinec D. Utjecaj pitch faktora na kvalitetu CT snimanja [Master's thesis]. Split: University of Split; 2018 [cited 2025 March 04] Available at: https://urn.nsk.hr/urn:nbn:hr:176:438908

D. Horvatinec, "Utjecaj pitch faktora na kvalitetu CT snimanja", Master's thesis, University of Split, Split, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:176:438908

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Metadata
TitleUtjecaj pitch faktora na kvalitetu CT snimanja
Title (english)IMPACT OF PITCH FACTOR ON CT EXAMINATION QUALITY
AuthorDražen Horvatinec
MentorFrane Mihanović (mentor)
Committee memberTonći Batinić (predsjednik povjerenstva)
Committee memberLjubica Žunić (član povjerenstva)
Committee memberFrane Mihanović (član povjerenstva)
GranterUniversity of Split
(University Department of Health Studies)
Split
Defense date and country2018-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Clinical Medical Sciences
Abstract
Cilj: Cilj ovog istraživanja je utvrditi utječe li se promjenom veličine pitch faktora kod CT uređaja na kvalitetu CT snimanja. Hipoteza istraživanja: Povećanjem pitch faktora ne utječemo na kvalitetu CT snimanja. Uzorak ispitanika i metode: Uporabom sintakse ključnih riječi te pretraživanjem literature pronašli smo 170 potencijalno relevantnih članaka. Nakon primjene isključnih i uključnih kriterija pregledali smo cjelovite tekstove 39 članaka, od kojih je 20 na koncu uključeno u... More analizu našeg istraživanja, jer su odgovarale postavljenim kriterijima kvalitete slike i doze zračenja u odnosu na pitch faktor. Rezultati: Od 11 studija koje su uspoređivale low pitch MSCT i high pitch DSCT, u 8 studija (72,7%) dobiveno je da je subjektivna kvaliteta slike ista. U 3 studije (27,3%) dobiveno je da je subjektivno kvaliteta slike manja s low pitch MSCT-om nego s high pitch DSCT-om. U svih jedanaest studija koje su uspoređivale low pitch MSCT i high pitch DSCT kod high pitch DSCT-a upotrebljavana je manja doza zračenja, a kod low pitch MSCT-a veća doza zračenja Tri rada uspoređivala su samo low i high pitch kod MSCT uređaja. U sva tri rada pronađeno je da je subjektivna kvaliteta slike jednaka, bez obzira na to koristi li se low ili high pitch. Pri korištenju low pitch MSCT-a za postizanje jednake kvalitete slike kao na high pitch MSCT-u korištene su više doze zračenja u sva tri slučaja. U ukupno 6 radova koji su uspoređivali subjektivnu kvalitetu snimke low pitch DSCT-a i high pitch DSCT-a, u tri studije pronađeno je da je kvaliteta snimke ista, a u tri slučaja da je kvaliteta slike manja s low pitch DSCT-om. Međutim, u svih 6 slučajeva low pitch DSCT-a korištene su veće doze zračenja u odnosu na high pitch DSCT kako bi se postigla bolja subjektivna kvaliteta slike u tih 50% studija. Zaključak: Ovim istraživanjem nije dokazano kako postoji statistički značajan utjecaj pitch faktora na kvalitetu slike kod višeslojnih CT uređaja, ali je potvrđeno kako high pitch faktor značajno utječe na smanjenje doze zračenja bolesnika. Less
Abstract (english)
Objective: The objective of this study is to determine how with changing the size of pitch factor at CT device we can affect the CT recording quality. Hypothesis of research: By increasing the pitch factor we do not affect the CT recording quality. Sample of examinees and methods: By using keywords syntax and searching the literature we found 170 potentially relevant articles. Following the application of the exclusion and inclusion criteria, we reviewed the complete texts of... More 39 articles, of which 20 were finally included in the analysis of our research, because they corresponded to the established image quality criteria and radiation dose in relation to the pitch factor. Results: Of 11 studies which compared low pitch MSCT and high pitch DSCT, in 8 studies (72.7%) it was found that the subjective image quality is the same. In 3 studies (27.3%), subjective image quality was lower with low pitch MSCT than with high pitch DSCT. In all eleven studies which compared low pitch MSCT and high pitch DSCT, at high pitch DSCT a lower radiation dose was used and at low pitch MSCT a higher dose of radiation was used. Three papers compared only low and high pitch at MSCT devices. In all three papers, subjective image quality was found to be equal regardless of whether low or high pitch was used. When using low pitch MSCT to achieve the same image quality as at high pitch MSCT, higher radiation doses were used in all three cases. In a total of 6 papers which compared the subjective quality of low pitch DSCT and high pitch DSCT, in three studies it was found that the image quality is the same, and in three cases the image quality was lower with low pitch DSCT. However, in all 6 cases of low pitch DSCT, higher radiation doses were used compared to high pitch DSCT in order to achieve better subjective image quality in 50% of these studies. Conclusion: This research did not find that there was a statistically significant influence of pitch factor on the image quality at multilayer CT devices, but we have confirmed that high pitch factor significantly affects the reduction of radiation dose of patients. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:176:438908
Study programmeTitle: Radiologic Technology (university/graduate)
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra radiološke tehnologije (magistar/magistra radiološke tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-05-27 07:37:24
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