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European Radiology
Published in: European Radiology 9/2009

01-09-2009 | Interventional

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

Authors: S. S. Chopra, J. Rump, S. C. Schmidt, F. Streitparth, C. Seebauer, G. Schumacher, I. Van der Voort, U. Teichgräber

Published in: European Radiology | Issue 9/2009

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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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Metadata
Title
Imaging sequences for intraoperative MR-guided laparoscopic liver resection in 1.0-T high field open MRI
Authors
S. S. Chopra
J. Rump
S. C. Schmidt
F. Streitparth
C. Seebauer
G. Schumacher
I. Van der Voort
U. Teichgräber
Publication date
01-09-2009
Publisher
Springer-Verlag
Published in
European Radiology / Issue 9/2009
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-009-1393-7

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