title: Registration of 3D fetal neurosonography and MRI.
abstract: We propose a method for registration of 3D fetal brain ultrasound with a reconstructed magnetic resonance fetal brain volume. This method, for the first time, allows the alignment of models of the fetal brain built from magnetic resonance images with 3D fetal brain ultrasound, opening possibilities to develop new, prior information based image analysis methods for 3D fetal neurosonography. The reconstructed magnetic resonance volume is first segmented using a probabilistic atlas and a pseudo ultrasound image volume is simulated from the segmentation. This pseudo ultrasound image is then affinely aligned with clinical ultrasound fetal brain volumes using a robust block-matching approach that can deal with intensity artefacts and missing features in the ultrasound images. A qualitative and quantitative evaluation demonstrates good performance of the method for our application, in comparison with other tested approaches. The intensity average of 27 ultrasound images co-aligned with the pseudo ultrasound template shows good correlation with anatomy of the fetal brain as seen in the reconstructed magnetic resonance image.
authors: Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK; Department of Biomedical Engineering, King's College London, UK; Centre for the Developing Brain, King's College London, UK. Electronic address: maria.murgasova@kcl.ac.uk.
authors: Maria
authors: M
authors: Kuklisova-Murgasova
authors: Amalia
authors: A
authors: Cifor
authors: Raffaele
authors: R
authors: Napolitano
authors: Aris
authors: A
authors: Papageorghiou
authors: Gerardine
authors: G
authors: Quaghebeur
authors: Mary A
authors: MA
authors: Rutherford
authors: Joseph V
authors: JV
authors: Hajnal
authors: J Alison
authors: JA
authors: Noble
authors: Julia A
authors: JA
authors: Schnabel
mesh_terms: D000465:Algorithms; D001921:Brain / Q000033:anatomy & histology*; D004453:Echoencephalography / Q000379:methods*; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009929:Organ Size; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013382:Subtraction Technique; D016216:Ultrasonography, Prenatal / Q000379:methods*
keywords: Block matching; Fetal 3D ultrasound; Fetal neurosonography; MR ultrasound registration
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