Interventional Cardiovascular Magnetic Resonance Imaging

Saikus, Christina E.; Lederman, Robert J.

doi:10.1016/j.jcmg.2009.09.002

Cited by 58 publications

(20 citation statements)

References 93 publications

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“…For the current prototype it is not possible to affirm that this instrument enables safer or faster intervention or reduces the number of instrument exchanges yet. However, the authors believe that in the context of a MRI-guided intervention, where there is a lack of a MR-compatible instrumentation [32] with proper mechanical characteristics [33,34], an instrument with improved maneuverability at the tip could offer a unique opportunity for efficient peripheral navigation.…”

Section: Discussionmentioning

confidence: 99%

Multi-selective catheter for MR-guided endovascular interventions

Clogenson

Lith

Dankelman

et al. 2015

Medical Engineering & Physics

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Section: Discussionmentioning

confidence: 99%

Multi-selective catheter for MR-guided endovascular interventions

Clogenson

Lith

Dankelman

et al. 2015

Medical Engineering & Physics

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“…The device channel can also be colored to improve visualization. 11 The signal received by the device coil drops off quickly away from the coil, creating some blurring to the signal.…”

Section: Imaging Toolsmentioning

confidence: 99%

“…Multiple review papers have summarized clinical translation of interventional MR, 10, 11 electrophysiology applications, 10 valve and stent applications, 12 pediatric applications, 13 and technical requirements. 14, 15 …”

Section: Introductionmentioning

confidence: 99%

Real‐time MRI guidance of cardiac interventions

Campbell-Washburn

Tavallaei

Pop

et al. 2017

Magnetic Resonance Imaging

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Cardiac MR is appealing to guide complex cardiac procedures because it is ionizing radiation free and offers flexible soft tissue contrast. Interventional cardiac MR promises to improve existing procedures and enable new ones for complex arrhythmias, as well as congenital and structural heart disease. Guiding invasive procedures demands faster image acquisition, reconstruction and analysis, as well as intuitive intra-procedural display of imaging data. Standard cardiac MR techniques such as 3D anatomical imaging, cardiac function and flow, parameter mapping and late-gadolinium enhancement can be used to gather valuable clinical data at various procedural stages. Rapid intraprocedural image analysis can extract and highlight critical information about interventional targets and outcomes. In some cases, real-time interactive imaging is used to provide a continuous stream of images displayed to interventionalists for dynamic device navigation. Alternatively, devices are navigated relative to a roadmap of major cardiac structures generated through fast segmentation and registration. Interventional devices can be visualized and tracked throughout a procedure with specialized imaging methods. In a clinical setting, advanced imaging must be integrated with other clinical tools and patient data. In order to perform these complex procedures, interventional cardiac MR relies on customized equipment, such as interactive imaging environments, in-room image display, audio communication, hemodynamic monitoring and recording systems, and electroanatomical mapping and ablation systems. Operating in this sophisticated environment requires coordination and planning. This review will provide an overview of the imaging technology used in MRI-guided cardiac interventions. Specifically, this review will outline clinical targets, standard image acquisition and analysis tools, and the integration of these tools into clinical workflow.

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“…Effective methods to produce a diagnostic quality ECG would be of great clinical benefit. There are three main applications during which this knowledge is useful: 1) MRI guided surgery (McVeigh et al 2006; Saikus and Lederman 2009; Lederman 2005; George et al 2011), 2) intracardiac electrophysiology (Susil et al 2002) and 3) stress testing by MRI (Cheng et al 2005; Jekic et al 2008, 2010). However, in order to develop a tool which can provide a useful ECG during MRI, realistic models of the MHD effect are required.…”

Section: Introductionmentioning

confidence: 99%

Comparison of three artificial models of the magnetohydrodynamic effect on the electrocardiogram

Oster

Llinares

Payne

et al. 2014

Computer Methods in Biomechanics and Biomedical Engineering

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The Electrocardiogram (ECG) is often acquired during Magnetic Resonance Imaging (MRI) for both image acquisition synchronisation with heart activity and patient monitoring to alert for life-threatening events. Accurate ECG analysis is mandatory for cutting-edge applications, such as MRI guided interventions. Nevertheless, the majority of the clinical analysis of ECG acquired inside MRI is made difficult by the superposition of a voltage called the MagnetoHydroDynamic (MHD) effect. MHD is induced by the flow of electrically charged particles in the blood perpendicular to the static magnetic field, which creates a potential of the order of magnitude of the ECG and temporally coincident with the repolatisation period. In this study, a new MHD model is proposed which is an extension of several existing models and incorporates MRI-based blood flow measurements made across the aortic arch. The model is extended to several cardiac cycles to allow the simulation of a realistic ECG acquisition during MRI examination and the quality assessment of MHD suppression techniques. A comparison of two existing models is made with our new model and with an estimate of the MHD voltage observed during a real MRI scan. Results indicate a good agreement between our proposed model and the estimated MHD for most leads, although there are clearly some descrepencies with the observed signal which are likely to be due to remaining deficiencies in the model. However, the results demonstrate that our new model provides a closer approximation to observed MHD effects and a better depiction of the complexity of the MHD effect compared to the previously published models. The source code will be made freely available under and open source license to facilitate collaboration and allow more rapid development of more accurate models of the MHD effect.

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Interventional Cardiovascular Magnetic Resonance Imaging

Cited by 58 publications

References 93 publications

Multi-selective catheter for MR-guided endovascular interventions

Multi-selective catheter for MR-guided endovascular interventions

Real‐time MRI guidance of cardiac interventions

Comparison of three artificial models of the magnetohydrodynamic effect on the electrocardiogram

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