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首页> 外文期刊>Journal of vascular and interventional radiology: JVIR >US-guided nephrostomy with the aid of a magnetic field-based navigation device in the porcine pelvicaliceal system.
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US-guided nephrostomy with the aid of a magnetic field-based navigation device in the porcine pelvicaliceal system.

机译：猪骨盆系统中基于磁场的导航设备在美国指导下进行肾造口术。

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PURPOSE: To assess the technique and feasibility of ultrasound (US)-guided nephrostomy performed with the aid of a magnetic field-based navigation device. MATERIALS AND METHODS: Twelve percutaneous nephrostomy procedures were performed in seven domestic pigs under real-time US guidance employing a navigation system. Two magnetic field sensors registered the actual position of the puncture needle and the US transducer. The actual needle position and the aimed puncture tract were graphically projected into the real-time US images, allowing exact navigation of the needle. After placement of the needle into the renal pelvis, the nephrostomy tube was inserted by means of the Seldinger technique. RESULTS: The puncture procedure was successfully performed in each case. The renal pelvis was punctured in a single attempt in 10 of 12 cases. In two cases, multiple attempts were necessary because bending of the puncture needle led to inaccuracies of the navigation system. With exception of two small perirenal urinomas, no complications were seen. CONCLUSIONS: The magnetic field-based navigation device allows easy and accurate performance of nephrostomy guided solely by US.
机译：目的：评估借助基于磁场的导航设备进行超声（US）引导的肾造口术的技术和可行性。材料与方法：在7头家猪的实时美国指导下，采用导航系统对十二只经皮肾造口术进行了手术。两个磁场传感器记录了穿刺针和US换能器的实际位置。实际的针头位置和目标穿刺道以图形方式投影到了实时US图像中，从而可以精确地导航针头。将针头插入肾盂后，通过Seldinger技术插入肾造瘘管。结果：每种情况下均成功执行了穿刺程序。一次尝试穿刺肾盂12例中的10例。在两种情况下，必须进行多次尝试，因为穿刺针的弯曲会导致导航系统不准确。除两个小的肾周尿路上皮瘤外，未见并发症。结论：基于磁场的导航设备可以简单，准确地执行仅由美国指导的肾造口术。

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