Navigated liver surgery: State of the art and future perspectives.

Gavriilidis, Paschalis, Edwin, Bjørn, Pelanis, Egidijus, Hidalgo, Ernest, de'Angelis, Nicola, Memeo, Riccardo, Aldrighetti, Luca and Sutcliffe, Robert P (2021) Navigated liver surgery: State of the art and future perspectives. Hepatobiliary & pancreatic diseases international : HBPD INT. ISSN 1499-3872.

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Abstract

BACKGROUND

In recent years, the development of digital imaging technology has had a significant influence in liver surgery. The ability to obtain a 3-dimensional (3D) visualization of the liver anatomy has provided surgery with virtual reality of simulation 3D computer models, 3D printing models and more recently holograms and augmented reality (when virtual reality knowledge is superimposed onto reality). In addition, the utilization of real-time fluorescent imaging techniques based on indocyanine green (ICG) uptake allows clinicians to precisely delineate the liver anatomy and/or tumors within the parenchyma, applying the knowledge obtained preoperatively through digital imaging. The combination of both has transformed the abstract thinking until now based on 2D imaging into a 3D preoperative conception (virtual reality), enhanced with real-time visualization of the fluorescent liver structures, effectively facilitating intraoperative navigated liver surgery (augmented reality).

DATA SOURCES

A literature search was performed from inception until January 2021 in MEDLINE (PubMed), Embase, Cochrane library and database for systematic reviews (CDSR), Google Scholar, and National Institute for Health and Clinical Excellence (NICE) databases.

RESULTS

Fifty-one pertinent articles were retrieved and included. The different types of digital imaging technologies and the real-time navigated liver surgery were estimated and compared.

CONCLUSIONS

ICG fluorescent imaging techniques can contribute essentially to the real-time definition of liver segments; as a result, precise hepatic resection can be guided by the presence of fluorescence. Furthermore, 3D models can help essentially to further advancing of precision in hepatic surgery by permitting estimation of liver volume and functional liver remnant, delineation of resection lines along the liver segments and evaluation of tumor margins. In liver transplantation and especially in living donor liver transplantation (LDLT), 3D printed models of the donor's liver and models of the recipient's hilar anatomy can contribute further to improving the results. In particular, pediatric LDLT abdominal cavity models can help to manage the largest challenge of this procedure, namely large-for-size syndrome.

Item Type: Article
Subjects: WI Digestive system. Gastroenterology
Divisions: Planned IP Care > Gastroentrology
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Depositing User: Mrs Caroline Tranter
Date Deposited: 01 Oct 2021 13:56
Last Modified: 01 Oct 2021 13:56
URI: http://www.repository.uhblibrary.co.uk/id/eprint/4677

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