@inbook{9a8a928301c44b62b35c5a7a1c21955f,
title = "Evaluation of the use of multimodality skin markers for the registration of pre-procedure cardiac MR images and intra-procedure x-ray fluoroscopy images for image guided cardiac electrophysiology procedures - art. no. 69181R",
abstract = "This paper presents the evaluation of the use of multimodality skin markers for the registration of cardiac magnetic resonance (MR) image data to x-ray fluoroscopy data for the guidance of cardiac electrophysiology procedures. The approach was validated using a phantom study and 3 patients undergoing pulmonary vein (PV) isolation for the treatment of paroxysmal atrial fibrillation. In the patient study, skin markers were affixed to the patients' chest and used to register pre-procedure cardiac MR image data to intra-procedure fluoroscopy data. Registration errors were assessed using contrast angiograms of the left atrium that were available in 2 out of 3 cases. A clinical expert generated {"}gold standard{"} registrations by adjusting the registration manually. Target registration errors (TREs) were computed using points on the PV ostia. Ablation locations were computed using biplane x-ray imaging. Registration errors were further assessed by computing the distances of the ablation points to the registered left atrial surface for all 3 patients. The TREs were 6.0 & 3.1 mm for patients 1 & 2. The mean ablation point errors were 6.2, 3.8, & 3.0mm for patients 1, 2, & 3. These results are encouraging in the context of a 5mm clinical accuracy requirement for this type of procedure. We conclude that multimodality skin markers have the potential to provide anatomical image integration for x-ray guided cardiac electrophysiology procedures, especially if coupled with an accurate respiratory motion compensation strategy",
author = "K Rhode and Ma, {Y L} and A Chandrasena and A King and G Gao and P Chinchapatnam and M Sermesant and D Hawkes and T Schaeffter and J Gill and R Razavi",
year = "2008",
language = "English",
isbn = "0277-786X",
series = "PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)",
publisher = "SPIE - INT SOC OPTICAL ENGINEERING",
pages = "R9181 -- R9181",
booktitle = "Medical Imaging 2008: Visualization, Image-Guided Procedures, and Modeling, Pts 1 and 2",
note = "Medical Imaging 2008 Conference ; Conference date: 01-01-2008",
}