Continuous bed motion has recently been introduced for whole-body PET/CT, and represents a paradigm shift towards individualized and flexible acquisition without the limitations of bed position-based planning. Increased patient comfort due to lack of abrupt table position changes may be another albeit still unproven advantage. For robust clinical implementation, image quality and quantitative accuracy should at least be equal to the prior standard of bed position-based step-and-shoot imaging.The study included 68 consecutive patients referred for whole-body PET/CT for various malignancies. The patients underwent traditional step-and-shoot and novel continuous bed motion acquisition in the same session in a randomized crossover design. The patients and two independent observers were blinded to the sequence of scan techniques. Patient comfort/satisfaction was examined using a standardized questionnaire. SUVs were compared for reference tissue (liver, muscle) and tumour lesions. PET image quality and misalignment with CT images were evaluated on a scale of 1 - 4.Patients preferred continuous bed motion over step-and-shoot (P = 0.0001). It was considered to be more relaxing (38
作者:Imke, Schatka;Desiree, Weiberg;Stephanie, Reichelt;Nicole, Owsianski-Hille;Thorsten, Derlin;Georg, Berding;Frank M, Bengel
来源:European journal of nuclear medicine and molecular imaging 2016 年 43卷 4期