Feasibility of Intraoperative Navigation for Liver Resection Using Real‐time Virtual Sonography With Novel Automatic Registration System

Takamoto, Takeshi; Mise, Yoshihiro; Satou, Shouichi; Kobayashi, Yuta; Miura, Koui; Saiura, Akio; Hasegawa, Kiyoshi; Kokudo, Norihiro; Makuuchi, Masatoshi

doi:10.1007/s00268-017-4210-5

Cited by 25 publications

(20 citation statements)

References 19 publications

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“…The anatomic excision of the liver is one of the fundamentally important techniques in hepatic surgery [6][7][8][9][10] .…”

Section: Discussionmentioning

confidence: 99%

“…Although the shorter condition increases the accuracy, the 33 cm-distant conditions were selected for the limits of laparoscopic procedures. Although a shift and deformation of 44.6 mm on average was assumed because of the combined effect of respiration and pneumoperitoneum [15][16][17][18] , errors of the simulation have been reported within 2 cm in recent studies 7,19 . However, the dynamic navigation technique based on an electromagnetic-tracked laparoscopic ultrasound-based navigation approach reported accurate and efficient targeting of liver tumours in a laparoscopic ablation as the median target-positioning error was 4.2 mm and median effort time was 39 sec 20 .…”

Section: Discussionmentioning

confidence: 99%

“…Registration points were the same as the in vitro demonstration, and those were set by using a micro-convex probe equipped with a position sensor via a small 7.5 cm incision below the xiphoid process during laparoscopic surgery according to the method of Takamoto et.al. 7 . The simulation area, based on the three-dimensional construction, was marked by an energy device laparoscopically ( Fig.…”

Section: Methodsmentioning

confidence: 99%

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Initial Report: A Novel Intraoperative Navigation System for Laparoscopic Liver Resection Using Real-Time Virtual Sonography

Sakata

Kijima

Arai

2020

Sci Rep

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Recent progress in navigation has revealed problems involving non-rigid registration for hepatic surgery. With the increasing popularity of laparoscopic liver surgery, a new laparoscopic navigation system is necessary. this study involved an in-vitro demonstration of a 3-dimensional printer model and in vivo demonstration in four patients. for the in vitro examination, a position detecting unit attached at 33 cm and 13 cm distance conditions from the tip of the electrocautery was examined eight times at the marked points on the liver surface eight times respectively. The differences between the simulation and the authentic dissecting plane were conventionally investigated in vivo. In vitro, the errors of the 33 cm and 13 cm distance model were7.8 ± 3.5 mm (mean ± SD), and 3.3 ± 1.0 mm, respectively. The mean differences of the dissection plane were within 10 mm. The potentiality and safety of the novel navigation system was confirmed, although further investigation is recommended.

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“…The anatomic excision of the liver is one of the fundamentally important techniques in hepatic surgery [6][7][8][9][10] .…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Initial Report: A Novel Intraoperative Navigation System for Laparoscopic Liver Resection Using Real-Time Virtual Sonography

Sakata

Kijima

Arai

2020

Sci Rep

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“…This manual registration results in the need for a person outside the operative field to input the anatomical landmarks into the navigation system in cooperation with the surgeon in the operative field. Currently, the next generation of software has been developed, which uses an electromagnetic IOUS navigation system with machine learning and artificial intelligence to perform an automatic registration procedure, aiming at more convenient and smaller positional error 64 . …”

Section: Recent Topics Of Performing Anatomical Liver Resectionmentioning

confidence: 99%

Precision surgery for primary liver cancer

Takamoto

Makuuchi

2019

Cancer Biol Med

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Liver resection remains the best curative option for primary liver cancer, such as hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma. In particular, in liver resection for HCC, anatomical resection of the tumor-bearing segments is highly recommended to eradicate the intrahepatic metastases spreading through portal venous branches. Anatomical liver resection, including anatomical segmentectomy and subsegmentectomy using the dye-injection method, is technically demanding and requires experience for completion of a precise procedure. The recent development of imaging studies and new computer technologies has allowed for the preoperative design of the operative procedure, intraoperative navigation, and postoperative quality evaluation of the anatomical liver resection. Although these new technologies are related to the progress of artificial intelligence, the actual operative procedure is still performed as human-hand work. A precise anatomical liver resection still requires meticulous exposure of the boundary of hepatic venous tributaries with deep knowledge of liver anatomy and utilization of intraoperative ultrasonography.

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“…The aforementioned classes of ultrasound navigation and position tracking are by definition somewhat complicated, bulky, and therefore time-consuming and difficult to set up and use. Further, ultrasound probe tracking is typically used for CT-or MRI-to-ultrasound co-registration, often for guided biopsies or procedures [8,[13][14][15]. This is instead of providing easily interpretable information regarding probe and patient body surface for diagnostic ultrasound interpretations.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Surface Point Cloud Ultrasound for Better Understanding and Transmission of Ultrasound Scan Information

Stember

2018

J Digit Imaging

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Ultrasound is notoriously plagued by high user dependence. There is a steep drop-off in information in going from what the sonographer sees during image acquisition and what the interpreting radiologist is able to view at the reading station. One countermeasure is probe localization and tracking. Current implementations are too difficult and expensive to use and/or do not provide adequate detail and perspective. The aim of this work was to demonstrate that a protocol combining surface three-dimensional photographic imaging with traditional ultrasound images may be a solution to the problem of probe localization, this approach being termed surface point cloud ultrasound (SPC-US). Ultrasound images were obtained of major vessels in an ultrasound training phantom, while simultaneously obtaining surface point cloud (SPC) 3D photographic images, with additional scanning performed on the right forearm soft tissues, kidneys, chest, and pelvis. The resulting sets of grayscale/color Doppler ultrasound and SPC images are juxtaposed and displayed for interpretation in a manner analogous to current text-based annotation or computer-generated stick figure probe position illustrations. Clearly demonstrated is that SPC-US better communicates information of probe position and orientation. Overall, it is shown that SPC-US provides much richer image representations of probe position on the patients than the current prevailing schemes. SPC-US turns out to be a rather general technique with many anticipated future applications, though only a few sample applications are illustrated in the present work.

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Feasibility of Intraoperative Navigation for Liver Resection Using Real‐time Virtual Sonography With Novel Automatic Registration System

Abstract: The RVS with novel automatic registration system can provide quick and easy registration and acceptable accuracy, which can promote the usage of IOUS.

Cited by 25 publications

References 19 publications

Initial Report: A Novel Intraoperative Navigation System for Laparoscopic Liver Resection Using Real-Time Virtual Sonography

Initial Report: A Novel Intraoperative Navigation System for Laparoscopic Liver Resection Using Real-Time Virtual Sonography

Precision surgery for primary liver cancer

Three-Dimensional Surface Point Cloud Ultrasound for Better Understanding and Transmission of Ultrasound Scan Information

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