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European Radiology

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01-08-2014 | Experimental

MRI-based 3D pelvic autonomous innervation: a first step towards image-guided pelvic surgery

Authors: M. M. Bertrand, F. Macri, R. Mazars, S. Droupy, J. P. Beregi, M. Prudhomme

Published in: European Radiology | Issue 8/2014

Abstract

Objective

To analyse pelvic autonomous innervation with magnetic resonance imaging (MRI) in comparison with anatomical macroscopic dissection on cadavers.

Material and methods

Pelvic MRI was performed in eight adult human cadavers (five men and three women) using a total of four sequences each: T1, T1 fat saturation, T2, diffusion weighed. Images were analysed with segmentation software in order to extract nervous tissue. Key height points of the pelvis autonomous innervation were located in every specimen. Standardised pelvis dissections were then performed. Distances between the same key points and the three anatomical references forming a coordinate system were measured on MRIs and dissections. Concordance (Lin’s concordance correlation coefficient) between MRI and dissection was calculated.

Results

MRI acquisition allowed an adequate visualization of the autonomous innervation. Comparison between 3D MRI images and dissection showed concordant pictures. The statistical analysis showed a mean difference of less than 1 cm between MRI and dissection measures and a correct concordance correlation coefficient on at least two coordinates for each point.

Conclusion

Our acquisition and post-processing method demonstrated that MRI is suitable for detection of autonomous pelvic innervations and can offer a preoperative nerve cartography.

Key Points

• Nerve preservation is a hot topic in pelvic surgery

• High resolution MRI can show distal peripheral nerves

• Anatomo-radiological comparison shows good correlation between MRI and dissection

• 3D reconstructions of pelvic innervation were obtained with an original method

• This is a first step towards image-guided pelvic surgery

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Title: MRI-based 3D pelvic autonomous innervation: a first step towards image-guided pelvic surgery
Authors: M. M. Bertrand
F. Macri
R. Mazars
S. Droupy
J. P. Beregi
M. Prudhomme
Publication date: 01-08-2014
Publisher: Springer Berlin Heidelberg
Published in: European Radiology / Issue 8/2014
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-014-3211-0

Keynote webinar | Spotlight on medication adherence

Springer Medicine

MRI-based 3D pelvic autonomous innervation: a first step towards image-guided pelvic surgery

Abstract

Objective

Material and methods

Results

Conclusion

Key Points

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Material and methods

Results

Conclusion

Key Points

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