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Imaging sequences for intraoperative MR-guided laparoscopic liver resection in 1.0-T high field open MRI

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Abstract

The aim of this study was to identify suitable interactive (dynamic) magnetic resonance (MR) sequences for real-time MR-guided liver dissection in a 1.0-T high field open MRI system. Four dynamic sequences encompassing balanced steady state free precession (bSSFP), T1W gradient echo (GRE), T2W GRE and T2W fast spin echo (FSE) were analysed regarding the image quality, artefact susceptibility and the performance of SNR and CNR. The T2W FSE sequence (1.5 s/image) was considered superior because of an intraoperative SNR of 6.9 (±0.7) and CNR (vessel to parenchyma) of 5.6 (±1.7) in the interventional setting. As a proof of concept, MR-guided laparoscopic liver resection was performed in two healthy domestic pigs by using the T2W FSE sequence. The additional MR images offered simultaneous multiplanar real-time visualisation of the liver vessels during the intervention and thereby increased the anatomical orientation of the surgeon.

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Authors and Affiliations

  1. Department of General, Visceral and Transplantation Surgery, Charité Campus Virchow Clinic, University Medicine Berlin, Augustenburger Platz 1, 13353, Berlin, Germany

    S. S. Chopra, S. C. Schmidt & G. Schumacher

  2. Department of Radiology, Charité Campus Mitte, University Medicine Berlin, Berlin, Germany

    J. Rump, F. Streitparth & U. Teichgräber

  3. Department of Trauma Surgery, Charité Campus Virchow Clinic, University Medicine Berlin, Berlin, Germany

    C. Seebauer

  4. Department of Gastroenterology, Charité Campus Virchow Clinic, University Medicine Berlin, Berlin, Germany

    I. Van der Voort

Authors
  1. S. S. Chopra
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  2. J. Rump
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  3. S. C. Schmidt
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  4. F. Streitparth
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  5. C. Seebauer
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  6. G. Schumacher
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  7. I. Van der Voort
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  8. U. Teichgräber
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Correspondence to S. S. Chopra.

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Chopra, S.S., Rump, J., Schmidt, S.C. et al. Imaging sequences for intraoperative MR-guided laparoscopic liver resection in 1.0-T high field open MRI. Eur Radiol 19, 2191–2196 (2009). https://doi.org/10.1007/s00330-009-1393-7

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  • DOI: https://doi.org/10.1007/s00330-009-1393-7

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