University of Dundee, Dundee, Scotland, UK; Furtwangen University, Villingen-Schwenningen, Germany.
Schuler-Konstruktionen GmbH, Nuremberg, Germany.
Ultrasound Med Biol. 2020 Sep;46(9):2556-2559. doi: 10.1016/j.ultrasmedbio.2020.04.017. Epub 2020 Jun 15.
Shear-wave elastography may produce misleadingly high values if too much pressure is applied during the imaging process. However, in clinical routine there is presently no way to monitor the pressure applied during the measurements. In this work we introduce a novel measurement setup which can directly be attached to an ultrasonic imaging transducer and allows observation of the applied pressure in real time. The setup supports free-hand imaging according to the clinical standard. We tested the setup by carrying out shear-wave elastography under varying pressures on ex vivo animal tissue. The values increased with pressure, as was expected. Thus, the setup is a possible solution for measuring applied pressure in real time.
如果在成像过程中施加的压力过大，剪切波弹性成像可能会产生误导性的高值。然而，在临床常规中，目前没有办法监测测量过程中施加的压力。在这项工作中，我们引入了一种新颖的测量设置，它可以直接连接到超声成像换能器，并允许实时观察施加的压力。该设置支持根据临床标准进行自由手成像。我们通过在离体动物组织上施加不同压力来进行剪切波弹性成像来测试该设置。正如预期的那样，值随压力的增加而增加。因此，该设置是实时测量施加压力的一种可行解决方案。
