Initial Experience in the Use of Integrated Electroanatomic Mapping with Three‐Dimensional MR/CT Images to Guide Catheter Ablation of Atrial Fibrillation

Dong, Jun; Dickfeld, Timm; Dalal, Darshan; Cheema, Aamir; Vasamreddy, Chandrasekhar R.; Henrikson, Charles A.; Marine, Joseph E.; Halperin, Henry R.; Berger, Ronald D.; Lima, João A.C.; Bluemke, David A.; Calkins, Hugh

doi:10.1111/j.1540-8167.2006.00425.x

Cited by 209 publications

(179 citation statements)

References 29 publications

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“…Acquisition time was approximately 15 s. This is an established scan technique, and the acquired images have been used for AF ablation procedures. 6 We then obtained DE-MRI with the following scan technique and parameters with reference to Magn Reson Med Sci, Vol. 14, No.…”

Section: Mr Imagingmentioning

confidence: 99%

Fusion of Delayed-enhancement MR Imaging and Contrast-enhanced MR Angiography to Visualize Radiofrequency Ablation Scar on the Pulmonary Vein

Shigenaga¹,

Kiuchi²,

Ikeuchi³

et al. 2015

magn reson med sci

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Delayed-enhancement magnetic resonance imaging (DE-MRI) is reported to detect the radiofrequency (RF) ablation scar of pulmonary vein isolation. However, the precise localization of RF scar is difficult to recognize due to the poor anatomical information of the 3-dimensionally reconstructed DE-MRI. We report 2 cases in which fusion of DE-MRI and contrast-enhanced MR angiography facilitated the identification of RF scar, and we detail our fusion method.

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Section: Mr Imagingmentioning

confidence: 99%

Fusion of Delayed-enhancement MR Imaging and Contrast-enhanced MR Angiography to Visualize Radiofrequency Ablation Scar on the Pulmonary Vein

Shigenaga¹,

Kiuchi²,

Ikeuchi³

et al. 2015

magn reson med sci

View full text Add to dashboard Cite

show abstract

“…After careful calibration for image distortion the x-ray projection images and the MR images can be merged, which is helpful during cardiac applications (7,8), where the soft tissue contrast of MR provides the anatomical information of the heart, and the x-ray contrast is used to steer the catheter.…”

Section: Xmr Systemsmentioning

confidence: 99%

“…MR image-guided myocardial ablation could be an alternative to the currently used functional guidance using electrograms and electromagnetic mapping, with adjunctive image guidance using x-ray fluoroscopy or ultrasound (2). Integration of electroanatomic mapping with preacquired MR images has been reported recently (8). Electrophysiology catheter prototypes suitable for real-time MR imaging guidance are also available (83).…”

Section: Endovascular Applicationsmentioning

confidence: 99%

MR‐guided intravascular interventions: Techniques and applications

Bock

Wacker

2008

Magnetic Resonance Imaging

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Magnetic resonance imaging (MRI) offers several advantages over other imaging modalities that make it an attractive imaging tool for diagnostic and therapeutic procedures. This tremendous potential of MRI has provided the rationale for increased attention toward MR-guided endovascular interventions. MR guidance has been used recently to navigate endovascular catheters and deliver stents, vena cava filters, embolization materials, and septum closure devices. However, its potential goes beyond just copying existing procedures toward the development of new minimally invasive techniques that cannot be performed with conventional guiding techniques. Because of technical limitations and safety issues associated with some of the currently available devices, a limited number of clinical studies have been performed so far. The overall success for this developing field requires considerable interdisciplinary research within both the interventional and the MR community. Only through a combined effort can this complex technology find its way into clinical practice. This review discusses the hardware and software improvements that have helped to advance endovascular interventions under MR imaging guidance from a pure research tool to become a clinical reality. In addition, technical and safety issues specific to endovascular MR image guidance will be described and practical applications will be shown that take advantage of the benefits of MR for endovascular interventions.

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“…5,[8][9][10][11] A combination of landmark and surface registration is used to register CT or MR with the CARTO system. Initially, several landmarks, usually 3, are manually chosen and annotated.…”

Section: Point and Surface-based Registrationmentioning

confidence: 99%

“…Intrasubject intermodal registration using 3D imaging modalities is an area of current focus with regards to radiofrequency catheter ablation procedures. [3][4][5][6][7][8][9][10][11] Cardiac motion of the heart and interpatient variability of anatomical features make the registration of cardiac images a unique challenge. Objective validation of the registration technique is, therefore, necessary before its utility as a tool for image-guided therapy can be properly assessed.…”

Section: Introductionmentioning

confidence: 99%

Cardiac Image Registration

Sra¹

2008

J.AFIB

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Long procedure time and somewhat suboptimal results hinder the widespread use of catheter ablation of complex arrhythmias such as atrial fibrillation (AF). Due to lack of contrast differentiation between the area of interest and surrounding structures in a moving organ like heart, there is a lack of proper intraprocedural guidance using current imaging techniques for ablation. Cardiac image registration is currently under investigation and is in clinical use for AF ablation. Cardiac image registration, which involves integration of two images in the context of left atrium (LA), is intermodal, with the acquired image and the real-time reference image residing in different image spaces, and involves optimization, where one image space is transformed into the other. Unlike rigid body registration, cardiac image registration is unique and challenging due to cardiac motion during the cardiac cycle and due to respiration. This review addresses the basic principles of the emerging technique of registration and the inherent limitations as they relate to cardiac imaging and registration

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Initial Experience in the Use of Integrated Electroanatomic Mapping with Three‐Dimensional MR/CT Images to Guide Catheter Ablation of Atrial Fibrillation

Abstract: Three-dimensional MR/CT images can be successfully extracted and registered to anatomically guided clinical AF ablations. The display of detailed and accurate anatomic information during the procedure enables tailored RF ablation to individual PV and LA anatomy.

Cited by 209 publications

References 29 publications

Fusion of Delayed-enhancement MR Imaging and Contrast-enhanced MR Angiography to Visualize Radiofrequency Ablation Scar on the Pulmonary Vein

Fusion of Delayed-enhancement MR Imaging and Contrast-enhanced MR Angiography to Visualize Radiofrequency Ablation Scar on the Pulmonary Vein

MR‐guided intravascular interventions: Techniques and applications

Cardiac Image Registration

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