Rapid image registration of three-dimensional transesophageal echocardiography and X-ray fluoroscopy for the guidance of cardiac interventions

Authors:
Gang Gao;Graeme Penney;Nicolas Gogin;Pascal Cathier;Aruna Arujuna;Matt Wright;Dennis Caulfield;Aldo Rinaldi;Reza Razavi;Kawal Rhode
Affiliations:
Division of Imaging Sciences, King's College London, London, UK;Division of Imaging Sciences, King's College London, London, UK;Medisys Group, Philips Research, Paris, France;Medisys Group, Philips Research, Paris, France;Division of Imaging Sciences, King's College London, London, UK;Division of Imaging Sciences, King's College London, London, UK;Department of Cardiology, Guy's and St.Thomas' Hospital, London, UK;Department of Cardiology, Guy's and St.Thomas' Hospital, London, UK;Division of Imaging Sciences, King's College London, London, UK;Division of Imaging Sciences, King's College London, London, UK
Venue:
IPCAI'10 Proceedings of the First international conference on Information processing in computer-assisted interventions
Year:
2010

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Abstract

The recent availability of three-dimensional (3D) transesophageal echocardiography (TEE) provides cardiologists with real-time 3D imaging of cardiac anatomy. X-ray fluoroscopy is the conventional modalilty that is used for guiding many cardiac interventions. Increasingly this is now supported using intra-procedure 3D TEE imaging. We hypothesize that the real-time co-registration and visualization of 3D TEE and X-ray fluoroscopy data will provide a powerful guidance tool for cardiologists. In this paper, we propose a novel, robust and efficient method for performing this registration. Our method consists of an image-based TEE probe localization algorithm and a calibration procedure. While the calibration needs to be done only once, the registration takes approximately 9.5 seconds to complete. The accuracy of our method was assessed by using both a crosswire phantom and a more realistic heart phantom. The target registration error for the heart phantom was less than 2mm. In addition, the accuracy and the clinical feasiblity of our method was evaluated in two cardiac electrophysiology procedures. The registration results showed in-plane errors of 1.5 and 3mm.