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Semantic-based indexing of fetal anatomies from 3-d ultrasound data using global/semi-local context and sequential sampling. Cvpr (2008).
| Content Provider | CiteSeerX |
|---|---|
| Author | Carneiro, Gustavo Amat, O. Georgescu, Bogdan Good, Sara Comaniciu, Dorin |
| Abstract | The use of 3-D ultrasound data has several advantages over 2-D ultrasound for fetal biometric measurements, such as considerable decrease in the examination time, possibility of post-exam data processing by experts and the ability to produce 2-D views of the fetal anatomies in orientations that cannot be seen in common 2-D ultrasound exams. However, the search for standardized planes and the precise localization of fetal anatomies in ultrasound volumes are hard and time consuming processes even for expert physicians and sonographers. The relative low resolution in ultrasound volumes, small size of fetus anatomies and intervolume position, orientation and size variability make this localization problem even more challenging. In order to make the plane search and fetal anatomy localization problems completely automatic, we introduce a novel principled probabilistic model that combines discriminative and generative classifiers with contextual information and sequential sampling. We implement a system based on this model, where the user queries consist of semantic keywords that represent anatomical structures of interest. After queried, the system automatically displays standardized planes and produces biometric measurements of the fetal anatomies. Experimental results on a held-out test set show that the automatic measurements are within the inter-user variability of expert users. It resolves for position, orientation and size of three different anatomies in less than 10 seconds in a dual-core computer running at 1.7 GHz 1. 1. |
| File Format | |
| Publisher Date | 2008-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fetal Anatomy 3-d Ultrasound Data Sequential Sampling Global Semi-local Context Semantic-based Indexing Ultrasound Volume Considerable Decrease Dual-core Computer Precise Localization User Query Semantic Keywords Expert User Automatic Measurement Relative Low Resolution Post-exam Data Processing Biometric Measurement Examination Time Expert Physician Contextual Information Several Advantage Common 2-d Ultrasound Exam Plane Search Time Consuming Process Standardized Plane 2-d Ultrasound Intervolume Position Generative Classifier Anatomical Structure Different Anatomy Fetus Anatomy Held-out Test Set Show Fetal Anatomy Localization Problem 2-d View Probabilistic Model Inter-user Variability Localization Problem Size Variability Fetal Biometric Measurement Experimental Result Small Size |
| Content Type | Text |
