56th SSRMP Annual Meeting

Session

Session IV

1 Dec 2023, 10:40

Konferenzsaal Coronado (Conference Center)

16. Influence of age and breast density on the radiation dose received for a mammography examination

Laura Dupont (Hôpitaux Universitaires de Genève)

01/12/2023, 10:40

Radiation Protection

Oral

Purpose:
The breast is a radiation-sensitive organ, and its composition varies from one individual to another. But does its composition affect the dose received during a mammography examination? The objective of this study is to determine the influence of age and breast density on the dose of radiation received during a mammography examination.
Methods:
A retrospective study was conducted...

5. Optimization of CT pulmonary angiography using task-based image quality assessment and diagnostic reference levels: An example of the implication of medical physicists in CT

Anais Viry (CHUV - Centre hospitalier universitaire vaudois)

01/12/2023, 10:50

Diagnostics

Oral

Purpose: In accordance with Article 36 of the Radiation Protection Ordinance (ORap), medical physicists must be involved in all CT applications, particularly for the optimization of CT protocols. In this framework, the purpose of this study is to establish size specific diagnostic reference levels (DRLs) for pulmonary embolism (PE) based on patient CT examinations performed on 74 CT devices in...

7. Integrating temporal resolution on the non-prewhitening model observer in computed tomography

Damien Racine (CHUV - Centre hospitalier universitaire vaudois)

01/12/2023, 11:00

Diagnostics

Oral

Image quality in computed tomography is generally assessed using model observers (MO) without integrating the influence of temporal resolution. The aim of this study was to develop a methodology to integrate the temporal resolution in MO.
A cubic water phantom containing a cylinder in polymethyl methacrylate was scanned using various acquisition parameters (rotation times, pitch factors and...

10. Patient eye lens radiation exposure during interventional neuroradiology procedures

Elina Samara (Radiation Protection Unit, University Hospital Zurich, University of Zurich, Zurich, Switzerland)

01/12/2023, 11:10

Diagnostics

Oral

Purpose
Neuroradiological interventions are minimally invasive procedures that can provide diagnostic information and offer treatment for diseases such as an ischemic stroke or cerebral aneurysm. These procedures have several advantages for the patient, such as fewer complications than open operations and shorter recovery times. However, they are accompanied by radiation exposure. Aim of this...

11. Probabilistic U-Net model observer for the DDC method in CT scan protocol optimization

David Stocker (ZHAW - Zürcher Hochschule für Angewandte Wissenschaften)

01/12/2023, 11:20

Diagnostics

Oral

Purpose
The task of co-optimizing dose and image quality is challenged by technological advancements in Computed Tomography (CT), including Machine Learning (ML)-driven image reconstructions. Conventional methods of image quality assessment often fail to capture radiologists’ clinical perspective. To address this, a method based on the Difference-Detailed Curve (DDC) has been developed,...