Department of Medical Imaging and Radiation Sciences, Faculty of Medicine, Nursing and Health Science, Monash University, Clayton, Victoria, Australia.
Imaging Medical Beamline, Australian Synchrotron, Australian National Science and Technology Organisation, Clayton, Victoria, Australia.
Br J Radiol. 2022 Sep 1;95(1138):20211243. doi: 10.1259/bjr.20211243. Epub 2022 Mar 17.
To design a device that can support the breast during phase-contrast tomography, and characterise its fit parameterisation and comfort rating.
27 participants were recruited to trial a system for breast support during simulated phase contrast imaging, including being positioned on a prone imaging table while wearing the device. Participants underwent a photogrammetry analysis to establish the geometric parameterisations. All participants trialled a single-cup design while 14 participants also trialled a double-cup with suction holder and all completed a series of questionnaires to understand subjective comfort.
Photogrammetry revealed significant positive correlations between bra cup volume and measured prone volume ( < 0.001), and between "best fit" single-cup holder volume and measured prone volume ( < 0.005). Both holders were suitable devices in terms of subjective comfort and immobilisation while stationary. However, some re-engineering to allow for quick, easy fitting in future trials where rotation through the radiation beam will occur is necessary. Light suction was well-tolerated when required.
All participants indicated the table and breast support devices were comfortable, and they would continue in the trial.
Phase contrast tomography is an emerging breast imaging modality and clinical trials are commencing internationally. This paper describes the biomedical engineering designs, in parallel with optimal imaging, that are necessary to measure breast volume so that adequate breast support can be achieved. Breast support devices have implications for comfort, motion correction and maximising breast tissue visualisation.
设计一种可在相衬断层成像期间支撑乳房的设备，并对其适配参数和舒适度进行评估。
招募了 27 名参与者，试用模拟相衬成像期间乳房支撑系统，包括在配备该设备的俯卧成像台上定位。参与者接受了摄影测量分析，以建立几何参数化。所有参与者试用了单杯设计，而 14 名参与者还试用了带有吸力固定器的双杯，并完成了一系列问卷，以了解主观舒适度。
摄影测量显示，胸罩杯体积与测量的俯卧体积之间存在显著正相关（<0.001），“最佳适配”单杯固定器体积与测量的俯卧体积之间存在显著正相关（<0.005）。两个固定器在静止时的主观舒适度和固定性方面都是合适的设备。然而，需要对其进行一些重新设计，以便在未来需要旋转穿过辐射束的试验中能够快速、轻松地适配。当需要时，轻微的吸力也能很好地耐受。
所有参与者均表示，桌子和乳房支撑设备舒适，他们将继续参加试验。
相衬断层成像术是一种新兴的乳房成像方式，国际上正在开展临床试验。本文描述了与优化成像并行的生物医学工程设计，这些设计对于测量乳房体积是必要的，以便能够实现充分的乳房支撑。乳房支撑设备对于舒适度、运动校正和最大限度地提高乳房组织可视化具有重要意义。
