| Title: | Impact of CT tube voltage and anode current on PET/CT image quality : a nema IQ phantom study |
|---|
| Authors: | ID Čavlin, Milana (Author)
ID Ležaič, Luka (Author)
ID Rep, Sebastijan (Author) |
|---|
| Files: |  PDF - Presentation file, download (762,36 KB)
MD5: 5BB82754A4ACBB1ABBCDFCA195BB5E88
 URL - Source URL, visit https://doi.org/10.2298/NTRP2602152C
|
|---|
| Language: | English |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: |  UKC LJ - Ljubljana University Medical Centre
|
|---|
| Abstract: | Positron emission tomography/computer tomography is a crucial modality for the quantification of metabolic activity and anatomical structure. Reducing radiation dose, especially in repeated imaging, remains a significant challenge. This study focuses on optimizing computer tomography parameters to reduce dose, while maintaining image quality. The aim of this research was to determine the impact of varying computer tomography tube voltage and anode current, on the quantification of standardized uptake value, contrast-to-noise ratio, and radiation exposure (volume CT dose index, dose-length product). A NEMA IQ body phantom was scanned using various combinations of tube voltage and anode current. Standardized up-take value, contrast-to-noise ratio, volume CT dose index and dose-length product, were evaluated from the different scans. The obtained results were statistically assessed. Reducing tube voltage and anode current did not significantly affect standardized uptake value accuracy but, reduced radiation dose. Image quality (contrast-to-noise ratio) remained diagnostically acceptable, supporting the potential for optimization without compromising accuracy. Optimization of computer tomography parameters (tube voltage, anode current) is feasible and beneficial in clinical practice, as it reduces patient radiation burden while maintaining image quality and standardized uptake value accuracy. |
|---|
| Keywords: | PET/CT, standardized uptake value, quantification, dose optimization, image quality, tube voltage, anode current |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Year of publishing: | 2026 |
|---|
| Number of pages: | str. 152-158 |
|---|
| Numbering: | Vol. 41, iss. 2 |
|---|
| PID: | 20.500.12556/DiRROS-31682  |
|---|
| UDC: | 61 |
|---|
| ISSN on article: | 1452-8185 |
|---|
| DOI: | 10.2298/NTRP2602152C |
|---|
| COBISS.SI-ID: | 286409987 |
|---|
| Copyright: | Na spletni strani revije navedeno: Nuclear Technology & Radiation Protection is an open access Journal. All articles can be downloaded free of charge and used in accordance with the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 Serbia (https://ntrp.vinca.rs/Editorial%20policy.htm) |
|---|
| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 30. 7. 2026;
Povzetek v angl. in srb.;
|
|---|
| Publication date in DiRROS: | 06.08.2026 |
|---|
| Views: | 126 |
|---|
| Downloads: | 85 |
|---|
| Metadata: |    |
|---|
|
:
|
Copy citation |
|---|
| | | | Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
