Real-time gating of IVUS sequences based on motion blur analysis: method and quantitative validation
MICCAI'10 Proceedings of the 13th international conference on Medical image computing and computer-assisted intervention: Part II
Automatic branching detection in IVUS sequences
IbPRIA'11 Proceedings of the 5th Iberian conference on Pattern recognition and image analysis
Combining Growcut and temporal correlation for IVUS lumen segmentation
IbPRIA'11 Proceedings of the 5th Iberian conference on Pattern recognition and image analysis
A holistic approach for the detection of media-adventitia border in IVUS
MICCAI'11 Proceedings of the 14th international conference on Medical image computing and computer-assisted intervention - Volume Part III
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Clinical studies on atherosclerosis regression/progression performed by Intravascular Ultrasound analysis require the alignment of pullbacks of the same patient before and after clinical interventions. In this paper, a methodology for the automatic alignment of IVUS sequences based on the Dynamic Time Warping technique is proposed. The method is adapted to the specific IVUS alignment task by applying the non-rigid alignment technique to multidimensional morphological signals, and by introducing a sliding window approach together with a regularization term. To show the effectiveness of our method, an extensive validation is performed both on synthetic data and in-vivo IVUS sequences. The proposed method is robust to stent deployment and post dilation surgery and reaches an alignment error of approximately 0.7 mm for in-vivo data, which is comparable to the inter-observer variability.