Identifying the needs of radiographers working in nuclear medicine departments for the co-construction of XAI tools for enhanced PET image reconstruction
Author Block: M. Champendal1, H. Müller2, J. O. Prior1, C. S. D. Reis1; 1Lausanne/CH, 2Sierre/CH
Purpose: AI is often viewed as a 'black box,' causing some distrust among healthcare professionals. This study aimed to pinpoint the needs of radiographers working in a nuclear medicine department to understand better the AI algorithm used for enhancing PET/CT images.
Methods or Background: Two Focus Groups/(FG) were conducted to identify background knowledge and perspectives about AI. An introduction about XAI was performed, and specific needs and preferences were explored through the presentation of scenarios, giving results corresponding or not corresponding to the ground truth. The questions that XAI should explain to support radiographers in their practice were collected, as well as main characteristics in terms of output format, confidence levels, barriers and facilitators for AI use. Thematic analysis was carried out following the Braun & Clark Framework.
Results or Findings: Ten radiographers (aged 31-60) from various hospital settings discussed their needs for XAI. While three currently use AI tools in PET/CT with limited training, their main requirements for XAI tools include interactivity, adaptability, user-friendliness, and minimal workflow disruption. They found a 'trust index,' visual comparisons, example-based, and chatbots as valuable output formats. Facilitators for XAI use included training, support, early integration, and radiographers specialists, while barriers included lack of understanding, organisational challenges, and system capabilities.
Conclusion: Needs for XAI tools were identified, but it is important to improve radiographers' knowledge and prepare the system to implement it without negatively impacting the workflow and patient outcomes.
Limitations: Limitations were the focus group sample size impacting generalisation and XAI knowledge.
Funding for this study: No funding was received for this study.
Has your study been approved by an ethics committee? Not applicable
Ethics committee - additional information: This study did not require ethics committee approval since no personal data were collected.