Sato Nao, Karino Kenji
Clinical Skill Up Center, Shimane University Hospital, Shimane, JPN.
Cureus. 2022 Dec 16;14(12):e32596. doi: 10.7759/cureus.32596. eCollection 2022 Dec.
Background Vascular compression is important for deep vein thrombosis screening. However, pressure analysis of ultrasound vessel models has not been performed. Therefore, we compared the human popliteal vein and several ultrasound vessel models at 50% compression. Methodology Four major ultrasound vascular models used in Japan and the popliteal vein of one subject constituted our measurement targets. Using a pressure-sensitive measuring device, the compressive force required to shorten the vessel diameter by 50% was determined. Results The compression force that shortened the popliteal vein by 50% was measured to be 191 ± 65 g. The blue phantom, ultrasound CV Pad II, ultrasound training block, and UGP-GEL required compression force of 701 ± 8 g, 265 ± 12 g, 697 ± 20 g, and 745 ± 15 g, respectively. The compression force for the ultrasound training block was 2.6 times higher than that for the ultrasound CV Pad II. The gel material around the vessels was the same; however, different vascular tubes required 2.6 times higher compression force. Conclusions This study showed that the objective numerical values of the compressive force were required to compress an ultrasound vascular model. Reproduction of the compressibility of veins required either removing the vascular structure or using thin tubing material.
背景 血管压迫对于深静脉血栓筛查很重要。然而，尚未对超声血管模型进行压力分析。因此，我们比较了人体腘静脉和几种在50%压迫状态下的超声血管模型。方法 日本使用的四种主要超声血管模型和一名受试者的腘静脉构成了我们的测量对象。使用压力敏感测量装置，确定将血管直径缩短50%所需的压缩力。结果 测量得出将腘静脉缩短50%的压缩力为191±65克。蓝色体模、超声CV Pad II、超声训练模块和UGP - GEL所需的压缩力分别为701±8克、265±12克、697±20克和745±15克。超声训练模块的压缩力比超声CV Pad II高2.6倍。血管周围的凝胶材料相同；然而，不同的血管管需要高2.6倍的压缩力。结论 本研究表明，压缩超声血管模型需要客观的压缩力数值。要重现静脉的可压缩性，要么去除血管结构，要么使用薄管材。
