Congress:
EuroSafe Imaging 2020
Keywords:
Performed at one institution, Experimental, Not applicable, Quality assurance, Education, Diagnostic procedure, CT, Radioprotection / Radiation dose, Professional issues, Abdomen, Action 3 - Image quality assessment based on clinical indications
Authors:
A. Fedusenko, M. Takha, O. Nikitina, V. Novokhatchenko
DOI:
10.26044/esi2020/ESI-05471
Background/introduction
Continuous CT thorax, abdomen and pelvis follow-ups are current cornerstone of response assessment to therapy for oncologic patients. Every year number of such examinations rises. Guided by ALARA principles vendors and healthcare professionals always seek for new methods of dose reduction, especially dealing with patients falling under repetitive radiation exposure. Patient tailored protocols, automatic exposure control, tube voltage optimization and new reconstruction technics play the main role in state-of-the-art low dose imaging.
Development of machines with proper processing power enabled IR algorithms which contribute to image quality improvement maintaining or even reducing radiation exposure.
Lowering tube parameters, operator decreases dose at the expense of raising noise. Greater noise may be modulated by software solutions, like IR in our case. The more level of iteration is the more noise reduction occur but there is also “smoothing artefact” which appears.