Cluley S R, Brener B J, Hollier L H, Eisenbud D E, Ferrara-Ryan M, Villaneuva A, Parsonnet V, Vilkomerson D
Division of Vascular Surgery, Newark Beth Israel Medical Centre, New Jersey 07112.
Am J Surg. 1991 Aug;162(2):117-21. doi: 10.1016/0002-9610(91)90171-9.
A new catheter has been developed that can be accurately and precisely positioned using duplex ultrasonography alone. A piezoelectric transducer that functions as a passive, omnidirectional receiver is attached to the mid-balloon region of an angioplasty catheter. Integration to a standard duplex imaging system allows visualization of this receiver in all planes, with the location of the receiver represented by a flashing bright arrow superimposed on the ultrasound B-mode image. This catheter was tested successfully in 10 dogs with bilateral femoral arteriovenous fistulas. With the use of duplex guidance, eight arterial and three venous stenoses were dilated and two stents were placed. Catheter placements and therapeutic outcomes predicted by ultrasound correlated with arteriographic findings. Ultrasound guidance has several advantages. It eliminates the risks associated with radiographic imaging. It also reduces patient costs and discomfort. Furthermore, procedures can be monitored continuously in real time with the collection of anatomic and physiologic data.
一种新型导管已被研发出来，仅使用双功超声检查就能准确且精确地定位。一个用作被动全向接收器的压电换能器附着在血管成形术导管的球囊中部区域。与标准双功成像系统集成后，可在所有平面上可视化该接收器，接收器的位置由叠加在超声B模式图像上闪烁的亮箭头表示。该导管在10只患有双侧股动静脉瘘的犬身上成功进行了测试。在双功引导下，扩张了8处动脉狭窄和3处静脉狭窄，并置入了2个支架。超声预测的导管放置情况和治疗结果与血管造影结果相关。超声引导有几个优点。它消除了与放射成像相关的风险。它还降低了患者成本和不适感。此外，可通过收集解剖和生理数据实时连续监测手术过程。
