General Object Reconstruction Based on Simplex Meshes
International Journal of Computer Vision
LV segmentation through the analysis of radio frequency ultrasonic images
IPMI'07 Proceedings of the 20th international conference on Information processing in medical imaging
3D radio frequency ultrasound cardiac segmentation using a linear predictor
MICCAI'10 Proceedings of the 13th international conference on Medical image computing and computer-assisted intervention: Part I
Segmentation of 3D RF echocardiography using a multiframe spatio-temporal predictor
IPMI'11 Proceedings of the 22nd international conference on Information processing in medical imaging
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Semi-automatic segmentation of the myocardium in 3D echographic images may substantially support clinical diagnosis of heart disease. Particularly in children with congenital heart disease, segmentation should be based on the echo features solely since a priori knowledge on the shape of the heart cannot be used. Segmentation of echocardiographic images is challenging because of the poor echogenicity contrast between blood and the myocardium in some regions and the inherent speckle noise from randomly backscattered echoes. Phase information present in the radio frequency (rf) ultrasound data might yield useful, additional features in these regions. A semi-3D technique was used to determine maximum temporal cross-correlation values locally from the rf data. To segment the endocardial surface, maximum cross-correlation values were used as additional external force in a deformable model approach and were tested against and combined with adaptive filtered, demodulated rf data. The method was tested on full volume images (Philips, iE33) of four healthy children and evaluated by comparison with contours obtained from manual segmentation.