Development of real-time navigation system for laparoscopic hepatectomy using magnetic micro sensor.

IF 1.7 4区医学 Q2 SURGERY

Minimally Invasive Therapy & Allied Technologies Pub Date : 2024-06-01 Epub Date: 2024-01-24 DOI:10.1080/13645706.2023.2301594

Tsuyoshi Igami, Yuichiro Hayashi, Yukihiro Yokyama, Kensaku Mori, Tomoki Ebata

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引用次数: 0

Abstract

Background: We report a new real-time navigation system for laparoscopic hepatectomy (LH), which resembles a car navigation system.

Material and methods: Virtual three-dimensional liver and body images were reconstructed using the "New-VES" system, which worked as roadmap during surgery. Several points of the patient's body were registered in virtual images using a magnetic position sensor (MPS). A magnetic transmitter, corresponding to an artificial satellite, was placed about 40 cm above the patient's body. Another MPS, corresponding to a GPS antenna, was fixed on the handling part of the laparoscope. Fiducial registration error (FRE, an error between real and virtual lengths) was utilized to evaluate the accuracy of this system.

Results: Twenty-one patients underwent LH with this system. Mean FRE of the initial five patients was 17.7 mm. Mean FRE of eight patients in whom MDCT was taken using radiological markers for registration of body parts as first improvement, was reduced to 10.2 mm (p = .014). As second improvement, a new MPS as an intraoperative body position sensor was fixed on the right-sided chest wall for automatic correction of postural gap. The preoperative and postoperative mean FREs of 8 patients with both improvements were 11.1 mm and 10.1 mm (p = .250).

Conclusions: Our system may provide a promising option that virtually guides LH.

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利用磁性微型传感器开发腹腔镜肝切除术实时导航系统。

背景：我们报告了一种用于腹腔镜肝切除术（LH）的新型实时导航系统：我们报告了一种新的腹腔镜肝切除术（LH）实时导航系统，它类似于汽车导航系统：材料：使用 "New-VES "系统重建了虚拟三维肝脏和身体图像，该系统在手术过程中起到了路线图的作用。使用磁性位置传感器（MPS）在虚拟图像中记录患者身体的几个点。一个相当于人造卫星的磁性发射器被放置在病人身体上方约 40 厘米处。另一个与 GPS 天线相对应的磁位置传感器固定在腹腔镜的操作部位。利用靶标配准误差（FRE，实际长度与虚拟长度之间的误差）来评估该系统的准确性：21名患者使用该系统进行了腹腔镜手术。最初五名患者的平均配准误差为 17.7 毫米。作为第一次改进，在使用放射标记登记身体部位的 MDCT 中，8 名患者的平均 FRE 降至 10.2 mm (p = .014)。作为第二项改进，新的 MPS 作为术中体位传感器被固定在右侧胸壁上，用于自动校正体位间隙。经过这两项改进的 8 名患者的术前和术后平均 FRE 分别为 11.1 毫米和 10.1 毫米（p = .250）：结论：我们的系统可以为 LH 的实际指导提供一个很有前景的选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Minimally Invasive Therapy & Allied Technologies 医学-外科

CiteScore

3.80

自引率

5.90%

发文量

审稿时长

6-12 weeks

期刊介绍： Minimally Invasive Therapy and Allied Technologies (MITAT) is an international forum for endoscopic surgeons, interventional radiologists and industrial instrument manufacturers. It is the official journal of the Society for Medical Innovation and Technology (SMIT) whose membership includes representatives from a broad spectrum of medical specialities, instrument manufacturing and research. The journal brings the latest developments and innovations in minimally invasive therapy to its readers. What makes Minimally Invasive Therapy and Allied Technologies unique is that we publish one or two special issues each year, which are devoted to a specific theme. Key topics covered by the journal include: interventional radiology, endoscopic surgery, imaging technology, manipulators and robotics for surgery and education and training for MIS.