Modulacija tokovnih sunkov glede na anatomske strukture pri CT slikanju glave in prsnih organov : diplomsko delo

Korošec, Vita (avtor), Alukić, Erna (mentor), Kaučič, Aleš (komentor), Mekiš, Nejc (recenzent)

Uvod: CT glave in prsnih organov sta pogosti preiskavi, pri katerih očesne leče in dojke izpostavljamo ionizirajočemu sevanju, zato so tehnike za znižanje doze sevanja zelo pomembne. Eden izmed načinov zniževanja doze sevanja je tehnika modulacije tokovnih sunkov z dodatnim zniževanjem toka v področju očesnih leč in dojk (OBTCM). Toda pomembno je upoštevati kako OBTCM tehnike za znižanje doze vplivajo na kakovost slik. Namen: Namen diplomske naloge je prikazati kako OBTCM vpliva na dozno obremenitev pacienta pri CT slikanju glave in prsnih organov ter to prikazati tudi s praktičnimi primeri. Ob zniževanju doze sevanja smo želeli ugotoviti tudi, kako OBTCM vpliva na kakovost slik. Metode dela: Uporabili smo deskriptivno metodo zbiranja podatkov s pregledom literature. Vire smo zbirali na straneh Cobiss, DiKUL, Google Scholar, PubMed, Radiopedia, Science Direct, Springer Link. Rezultati: Za 53 CT preiskav glave z uporabo OBTCM in 53 preiskav s klasično modulacijo toka smo opazovali ekspozicijske parametre, DLP in CTDIvol in glede na vrednosti SNR in CNR opazovali kako se spreminja kakovost slik. Razprava in zaključek: Rezultati so pokazali, da je skupna doza sevanja višja pri OBTCM, doza na očesne leče in dojke pa je nižja. Kakovost CT slik je pri OBTCM primerljiva s CT slikami brez uporabe OBTCM.

• Jezik: Slovenski jezik
• Ključne besede: diplomska dela, radiološka tehnologija, anatomska modulacija toka, X-CARE, OBTCM, CT prsnega koša, CT glave, dozna obremenitev
• Vrsta gradiva: Diplomsko delo/naloga
• Tipologija: 2.11 - Diplomsko delo
• Organizacija: ZF - Zdravstvena fakulteta
• Kraj izida: Ljubljana
• Založnik: [V. Korošec]
• Leto izida: 2023
• Št. strani: 53 str.
• PID: 20.500.12556/RUL-149993
• UDK: 616-07
• COBISS.SI-ID: 164392963
• Datum objave v RUL: 13.09.2023

KOROŠEC, Vita, 2023, Modulacija tokovnih sunkov glede na anatomske strukture pri CT slikanju glave in prsnih organov : diplomsko delo [na spletu]. Diplomsko delo. Ljubljana : V. Korošec. [Dostopano 3 maj 2025]. Pridobljeno s: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=149993

Sekundarni jezik

• Jezik: Angleški jezik
• Naslov: Modulation of electrical current surges according to anatomical structures in CT imaging of the head and the chest organs : diploma work

Izvleček

Introduction: CT scans of the head and chest organs are common examinations in which the lens of the eye and the breast are exposed to to ionizing radiation, so techniques to reduce the radiation dose are very important. One of the methods to reduce radiation dose is the current pulse modulation technique with additional current reduction in the eye lens and breast area (OBTCM). But it is important to consider how OBTCM dose reduction techniques affect image quality. Purpose: The aim of the diploma thesis is to show how OBTCM affects the dose load in the patient during CT imaging of the head and chest organs, and to demonstrate this also with practical examples. While reducing the radiation dose, we also wanted to find out how OBTCM affects the quality of the images. Methods: We used a descriptive method of data collection with a literature review. We collected sources on the pages of Cobiss, DiKUL, Google Scholar, PubMed, Radiopedia, Science Direct, Springer Link. Results: For 53 CT examinations of the head using OBTCM and 53 examinations with classical current modulation, we observed the exposure parameters, DLP and CTDI, and observed how the quality of the images changes according to the SNR and CNR values. Discussion and conclusion: The results showed that the total radiation dose is higher in OBTCM, but dose to the eye lens and breast is lower. The quality of CT images with OBTCM is comparable to CT images without the use of OBTCM.

• Ključne besede: diploma theses, radiologic technology, anatomical tube current modulation, X-CARE, OBTCM, chest CT, head CT, dose