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BMC Geriatrics

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Volume 10 Supplement 1

de Senectute: Age and Health Forum

Open Access

Perspectives of computer assisted resection planning and navigation for hepatic resections in the elderly

  • M Donati2,
  • G A Stavrou1,
  • H O Peitgen3 and
  • KJ Oldhafer1
BMC Geriatrics201010(Suppl 1):A7

https://doi.org/10.1186/1471-2318-10-S1-A7

Published: 19 May 2010

Background

Recent advances in image-based computer assistance in the last ten years allow computerized preoperative simulations, giving a lot of advantages in the preoperative surgical planning of resections1. Preoperative simulation represents the prerequisite for navigated liver surgery. The aim of this study is to describe elementary technical aspects of a navigated approach to liver resections showing the advantages of navigation-system especially in the elderly.

Materials and methods

The preliminary condition in order to realize the navigation system in liver surgery is the simulation software previously developed. In fact, after the first step consisting in the planning of the surgical resection surface and direction (Figure 1) and the second step of the registration of the surgical planning directly on patient’s anatomy by using an infrared optical localization-device positioned on a US-probe (Figure 2), there is the third phase performing the 3D-simulated liver resection directly on the patient driven by the navigation system. This information was in some resections also transferred to the liver surface using an image-guided stereotactically navigated ultrasound dissector (CUSA) (Figure 3).
Figure 1

Example of preoperative resection planning in a patient with a metastatic localization on the segment IV.

Figure 2

Step II, registration of the preoperative planning on real patient anatomy using infrared optical localization device positioned on US-probe.

Figure 3

CUSA® dissector modified by the positioning of an infrared optical device for the navigation during resection.

Results

The main advantages shown in old patients were: the possibility to extend major liver resections while calculating exactly the rest-volume of the liver, to give a more precise localization of vessels and biliary structures, to allow the recognition of anatomical variants, to drive multiple resection sparing as more parenchyma as possible avoiding re-resection. The navigation system seems to be very useful and applicable in old patients, reducing the risk of liver failure [1] and allowing us to also operate on a tumour no more to be localized after neoadjuvant chemotherapy [2].

Conclusions

The navigation system allowed us to exactly reproduce in the operatory theatre, on the patient, the previously computer-planned operation. In selected cases, this information may have a considerable influence on operative planning [3], especially with regard to the extent of resection or the need for vascular reconstruction. This seems to be particularly important in extended left hepatectomies or in repeat hepatectomy when intrahepatic vascular anatomy may be altered.

Authors’ Affiliations

(1)
Department of General, Visceral and Thoracic Surgery, Celle General Hospital (AKH)
(2)
Department of Surgical Sciences, Organ Transplantations and New Technologies, O.U. General and Week Surgery
(3)
Frauenhofer MEVIS, Institute for Medical Image Computing

References

  1. Lang H, Radtke A, Hindennach M, Schroeder T, Bourquain H, Schenk A, Oldhafer KJ, Prause G, Peitigen HO, Broelsch CE: Virtuelle hepatobiliare Chirurgie-computer-unterstutzte Resektionsplanung an der dreidimensional rekostruierten. Leber.Z.Gastroenterol. 2007, 45: 965-70. 10.1055/s-2007-963210.View ArticleGoogle Scholar
  2. Oldhafer KJ, Stavrou GA, Prause G, Peitgen HO, Lueth TC, Weber S: How to operate a liver tumor you cannot see. Langenbecks Arch Surg. 2009, 394 (3): 489-94. 10.1007/s00423-009-0469-9.PubMedView ArticleGoogle Scholar
  3. Lang H, Radtke A, Liu C, Fruhauf NR, Peitgen HO, Broelsch CE: Extended left hepatectomy— modified operation planning based on three-dimensional visualization of liver anatomy. Langenbecks Arch Surg. 2004, 389: 306-310. 10.1007/s00423-003-0441-z.PubMedView ArticleGoogle Scholar

Copyright

© Donati et al; licensee BioMed Central Ltd. 2010

This article is published under license to BioMed Central Ltd.

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