DocumentCode :
2791581
Title :
Intraoperative registration of preoperative 4D cardiac anatomy with real-time MR images
Author :
Xifeng Gao ; Navkar, Nikhil V. ; Shah, D.J. ; Tsekos, Nikolaos V. ; Zhigang Deng
Author_Institution :
Dept. of Comput. Sci., Univ. of Houston, Houston, TX, USA
fYear :
2012
fDate :
11-13 Nov. 2012
Firstpage :
583
Lastpage :
588
Abstract :
Co-registering pre- and intra- operative MR data is an important yet challenging problem due to different acquisition parameters, resolutions, and plane orientations. Despite its importance, previous approaches are often computationally intensive and thus cannot be employed in real-time. In this paper, a novel three-step approach is proposed to dynamically register pre-operative 4D MR data with intra-operative 2D RT-MRI to guide intracardiac procedures. Specifically, a novel preparatory step, executed in the pre-operative phase, is introduced to generate bridging information that can be used to significantly speed up the on-the-fly registration in the intraoperative procedure. Our experimental results demonstrate an accuracy of 0.42 mm and a processing speed of 26 FPS of the proposed approach on an off-the-shelf PC. This approach, is in particularly developed for performing intra-cardiac procedures with real-time MR guidance.
Keywords :
biomedical MRI; cardiology; image registration; image resolution; medical image processing; real-time systems; solid modelling; acquisition parameter; dynamic registration; image resolution; intracardiac procedure; intraoperative 2D RT-MRI; intraoperative MR data registration; off-the-shelf PC; on-the-fly registration; plane orientation; preoperative 4D cardiac anatomy; preoperative MR data registration; processing speed; real-time MR images; real-time magnetic resonance imaging; Accuracy; Computational modeling; Heart; Real-time systems; Registers; Solid modeling; Spatial resolution; 4D Mesh Models; Cardiac Surgery; Intra-operative Registration; Real-time MR;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Bioinformatics & Bioengineering (BIBE), 2012 IEEE 12th International Conference on
Conference_Location :
Larnaca
Print_ISBN :
978-1-4673-4357-2
Type :
conf
DOI :
10.1109/BIBE.2012.6399737
Filename :
6399737
Link To Document :
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