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Title

3D organ motion prediction for MR-guided high intensity focused ultrasound

Authors
Arnold, Patrik
Preiswerk, Frank
Fasel, Beat
Scheffler, Klaus
Cattin, Philippe C
Published in Fichtinger, G., Martel, A. and Peters, T. Medical image computing and computer-assisted intervention MICCAI. Toronto - 18-22 september 2011 - Berlin; New York: Springer. 2011, p. 623-630
Collection Lecture Notes in Computer Science; 6893
Abstract MR-guided High Intensity Focused Ultrasound is an emerging non-invasive technique capable of depositing sharply localised energy deep within the body, without affecting the surrounding tissues. This, however, implies exact knowledge of the target's position when treating mobile organs. In this paper we present an atlas-based prediction technique that trains an atlas from time-resolved 3D volumes using 4DMRI, capturing the full patient specific motion of the organ. Based on a breathing signal, the respiratory state of the organ is then tracked and used to predict the target's future position. To additionally compensate for the non-periodic slower organ drifts, the static motion atlas is combined with a population-based statistical exhalation drift model. The proposed method is validated on organ motion data of 12 healthy volunteers. Experiments estimating the future position of the entire liver result in an average prediction error of 1.1 mm over time intervals of up to 13 minutes.
Keywords AdolescentAdultAgedAlgorithmsDatabases, FactualFemaleHumansImage Processing, Computer-AssistedImaging, Three-Dimensional/methodsLiver/pathologyMagnetic Resonance Imaging/methodsMaleMiddle AgedMotionReproducibility of ResultsRespirationUltrasonography/methods
Identifiers
PMID: 21995081
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Proceedings chapter (Published version) (750 Kb) - document accessible for UNIGE members only Limited access to UNIGE
Structures
Research groups Groupe Krejci Ivo (médecine dentaire) (240)
Imagerie per-opératoire multi-modalité en radiologie interventionnelle (949)
Project FNS: FNS CR33I3_143980
Citation
(ISO format)
ARNOLD, Patrik et al. 3D organ motion prediction for MR-guided high intensity focused ultrasound. In: Fichtinger, G., Martel, A. and Peters, T. (Ed.). Medical image computing and computer-assisted intervention MICCAI. Toronto. Berlin; New York : Springer, 2011. p. 623-630. (Lecture Notes in Computer Science; 6893) https://archive-ouverte.unige.ch/unige:73010

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Deposited on : 2015-06-05

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