The study investigated ultrasound (US) transducer push, tantamount to applied transducer pressure, during abdominal aortic aneurysm (AAA) US scanning in a simulated non-clinical setup.

During an assessment of maximal AAA diameter on a three-dimensional print-based AAA phantom, US transducer push varied as much as 2000% (range: 0.52–12.45 kPa) amongst 16 experienced sonographers. The mean transducer push was 5.54 ± 3.91 kPa (CV = 0.71).

Deformation of a standardized gel-pad allowed for transducer push calculation based on US images; Young’s modulus of the gel-pad was estimated to 44,26 N/m².

The method is theoretically validated in a safe and non-clinical environment. Future investigations with the aim of clinical validation of the gel-pad principle on AAA patients are suggested, including the objectification of the magnitude of an eventual transducer push-related error during US AAA diameter measurement.

该研究调查了在模拟非临床设置中腹主动脉瘤 (AAA) US 扫描期间超声 (US) 换能器推动，相当于应用换能器压力。

在基于三维打印的 AAA 体模上评估最大 AAA 直径期间，16 名经验丰富的超声医师之间的美国换能器推动变化高达 2000%（范围：0.52–12.45 kPa）。平均传感器推动为 5.54 ± 3.91 kPa (CV = 0.71)。

标准化凝胶垫的变形允许基于美国图像的换能器推动计算；凝胶垫的杨氏模量估计为 44,26 N/m ²。

该方法在安全和非临床环境中得到了理论上的验证。建议未来的研究旨在对 AAA 患者的凝胶垫原理进行临床验证，包括在美国 AAA 直径测量期间对最终传感器推动相关误差的大小进行客观化。