Initial experience of intraoperative three-dimensional navigation for liver resection using real-time virtual sonography

Satou, Shouichi; Aoki, Taku; Kaneko, Junichi; Sakamoto, Yoshihiro; Hasegawa, Kiyoshi; Sugawara, Yasuhiko; Arai, Osamu; Mitake, Tsuyoshi; Miura, Koui

doi:10.1016/j.surg.2013.08.009

Cited by 39 publications

(26 citation statements)

References 15 publications

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“…In such a case, the location of the tumor should be speculated with reference to anatomical landmarks such as Glissonean pedicle and hepatic vein for limited resection. Use of an intraoperative navigation system using real‐time virtual sonography, which is under development, may become one of the useful methods to identify and resect lesion that cannot be detected by CE‐IOUS . Given that the DLMs that were identified by EOB‐MRI showed a higher probability of recurrence even if they could not be identified by CE‐IOUS, the findings on EOB‐MRI may be used for stratifying the risk of recurrence in patients with DLMs.…”

Section: Discussionmentioning

confidence: 99%

Management of disappearing lesions after chemotherapy for colorectal liver metastases: Relation between detectability and residual tumors

Tani

Shindoh

Akamatsu

et al. 2017

Journal of Surgical Oncology

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Section: Discussionmentioning

confidence: 99%

Management of disappearing lesions after chemotherapy for colorectal liver metastases: Relation between detectability and residual tumors

Tani

Shindoh

Akamatsu

et al. 2017

Journal of Surgical Oncology

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“…In this study, we could detect a tumor of 43.5 mm maximum depth from the liver surface ; that depth is only dependent on the ability of the ultrasound system with Sonazoid enhancement. Satou et al reported the usefulness of an RVS system combined with preoperative 3D simulation images to navigate the detection of tumors and for navigation of the resection plane for hepatic resection (17). This system may be very useful for intraoperative tumor detection and recognition of liver anatomy in hepatic resection.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the use of intraoperative real-time virtual sonography with sonazoid enhancement for detecting small liver metastatic lesions after chemotherapy in hepatic resection

et al. 2019

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Background : Systemic chemotherapy can drastically downsize metastatic liver tumors and these small liver lesions could sometimes be difficult for surgeons to detect during hepatectomy. We assessed the usefulness of intraoperative real-time virtual sonography (RVS) with contrast-enhanced ultrasonography (CEUS) using 'Sonazoid' contrast agent (RVS-CEUS). Methods : We performed the intraoperative RVS-CEUS technique on 10 tumor lesions in six cases, which were scheduled for hepatic resection of < 10 mm in diameter in our liver metastases series. These lesions were preoperatively diagnosed by contrast enhanced-computed tomography (CE-CT) or Gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (EOB-MRI). We assessed the detectability of a tumor with RVS-CEUS during surgery and compared it with that of preoperative CE-CT or EOB-MRI. Results : Detectability of RVS-CEUS for 10 small lesions was 90% (n = 9/10) and that of other preoperative modalities were 50% (n = 5/10, CE-CT) and 100% (n = 10/10, EOB-MRI). Minimum tumor size detected was 3.0 mm in diameter, and maximum depth of detection with RVS-CEUS was 43.5 mm ; these results could be an advantage when compared with other intraoperative diagnostic modalities. Conclusion : Intraoperative RVS-CEUS was useful for detecting small metastatic liver lesions after chemotherapy and could be an effective intraoperative diagnostic technique for hepatic resection of a size < 10 mm.

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“…This function is used in preoperative simulations prior to liver resection [21,22] to determine resection ranges [23,24]. By separately extracting all 8 segments as DICOM data using this function and uploading these segments into Ascendus, assigning different colors to each segment (fig.…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, there have been several reports regarding the utility of preoperative 3D simulation prior to liver resection, with various authors affirming the efficacy of preoperative 3D simulation using SYNAPSE VINCENT [24]. However, 3D simulation based on preoperative images is associated with issues such as inaccurate simulation because of factors including compression or distortion caused by intraoperative liver manipulations.…”

Section: Discussionmentioning

confidence: 99%

Initial Experience Performing Percutaneous Ultrasound Examination with Real-Time Virtual Sonography with Color Display

Ogawa

Minami²,

Noda³

et al. 2015

Oncology

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Purpose: We report the efficacy of percutaneous ultrasound (US) examination using a novel real-time virtual sonography (RVS) method that collates multiple Digital Imaging and Communications in Medicine (DICOM) data sources and displays reference images in color. Materials and Methods: A total of 7 patients with 9 hepatocellular carcinomas were evaluated. Using the SYNAPSE VINCENT volume analyzer, DICOM data of the portal vein, hepatic vein, tumor, and hepatic segment were isolated from contrast-enhanced computed tomography DICOM data. Each portion of DICOM data was uploaded into an US scanner (HI VISION Ascendus, Hitachi Aloka Medical Ltd., Tokyo, Japan) and unified on a US platform to create a single reference image. Each uploaded portion of DICOM data was assigned a different color. Further, conventional RVS was performed using this information. Results: The maximal tumoral diameter ranged from 6.4 to 15 mm (mean ± SD, 11.0 ± 2.8). DICOM data could be isolated, enabling the display of color RVS in all patients. Color RVS facilitated superior visibility compared with conventional grayscale RVS and facilitated the comprehension of spatial positioning. Conclusion: RVS with color display demonstrates utility in increasing operator comprehension of spatial and positional relationships during percutaneous US examination.

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Initial experience of intraoperative three-dimensional navigation for liver resection using real-time virtual sonography

Cited by 39 publications

References 15 publications

Management of disappearing lesions after chemotherapy for colorectal liver metastases: Relation between detectability and residual tumors

Management of disappearing lesions after chemotherapy for colorectal liver metastases: Relation between detectability and residual tumors

Evaluation of the use of intraoperative real-time virtual sonography with sonazoid enhancement for detecting small liver metastatic lesions after chemotherapy in hepatic resection

Initial Experience Performing Percutaneous Ultrasound Examination with Real-Time Virtual Sonography with Color Display

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