Intra-operative correction of brain-shift.
Acta Neurochir (Wien)
; 156(7): 1301-10, 2014 Jul.
Article
em En
| MEDLINE
| ID: mdl-24696180
ABSTRACT
BACKGROUND:
Brain-shift is a major source of error in neuronavigation systems based on pre-operative images. In this paper, we present intra-operative correction of brain-shift using 3D ultrasound.METHODS:
The method is based on image registration of vessels extracted from pre-operative MRA and intra-operative power Doppler-based ultrasound and is fully integrated in the neuronavigation software.RESULTS:
We have performed correction of brain-shift in the operating room during surgery and provided the surgeon with updated information. Here, we present data from seven clinical cases with qualitative and quantitative error measures.CONCLUSION:
The registration algorithm is fast enough to provide the surgeon with updated information within minutes and accounts for large portions of the experienced shift. Correction of brain-shift can make pre-operative data like fMRI and DTI reliable for a longer period of time and increase the usefulness of the MR data as a supplement to intra-operative 3D ultrasound in terms of overview and interpretation.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Encéfalo
/
Monitorização Intraoperatória
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Imageamento Tridimensional
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Neuronavegação
/
Movimento (Física)
Tipo de estudo:
Qualitative_research
Limite:
Humans
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article