van Geffen G-J, Mulder J, Gielen M, van Egmond J, Scheffer G-J, Bruhn J
Radboud University Medical Centre, Nijmegen, the Netherlands.
Anaesthesia. 2008 Sep;63(9):986-90. doi: 10.1111/j.1365-2044.2008.05524.x. Epub 2008 Jun 6.
In this in vitro study, a needle guidance device and a 'free hand' technique for ultrasound guided needle insertion were compared in a simulated ultrasound-guided interventional task using a porcine phantom. Residents inexperienced in using ultrasonography were asked to insert a needle, using an in-plane techniques, and to make contact with metal rods at a depth of 2 and 4 cm in the phantom. The transducer made angles of 90 degrees, 60 degrees and 45 degrees with the surface of the phantom. The times to perform the procedures were significantly shorter and the needle visualisation was significantly better when using the needle guidance device. The residents ranked their satisfaction with the needle-guidance device significantly better than the 'free-hand' technique. This device may be beneficial when performing ultrasound guided peripheral nerve blocks, especially by inexperienced operators.
在这项体外研究中，在使用猪模型的模拟超声引导介入任务中，对一种针引导装置和超声引导针插入的“徒手”技术进行了比较。要求不熟悉超声检查的住院医师使用平面内技术插入一根针，并在模型中2厘米和4厘米深处接触金属棒。换能器与模型表面成90度、60度和45度角。使用针引导装置时，执行操作的时间显著缩短，针的可视化效果显著更好。住院医师对针引导装置的满意度排名明显高于“徒手”技术。该装置在进行超声引导外周神经阻滞时可能有益，尤其是对于经验不足的操作者。
