Use of a Nonmetallic Guide Wire for Magnetic Resonance-Guided Coronary Artery Catheterization

Buecker, Arno; Spuentrup, Elmar; Schmitz‐Rode, Thomas; Kinzel, Sylvia; Pfeffer, Joachim; Hohl, C.; Vaals, J. J. Van; Günther, Rolf W.

doi:10.1097/00004424-200411000-00002

Cited by 43 publications

(24 citation statements)

References 18 publications

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“…To visualize the brachytherapy catheter we used a guide wire inside shortened to 38 cm (easing safety constraints with respect to a wavelength in tissue of ≈78 cm at 1 Tesla). Guide wires pose a challenge in interventional MRI only if used during imaging inside the magnet since they may induce sparking and heating [36]. Passively marked MR-safe guide wires may represent a valuable alternative [37].…”

Section: Discussionmentioning

confidence: 99%

MR-guided liver tumor ablation employing open high-field 1.0T MRI for image-guided brachytherapy

et al. 2010

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Section: Discussionmentioning

confidence: 99%

MR-guided liver tumor ablation employing open high-field 1.0T MRI for image-guided brachytherapy

et al. 2010

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“…Keeping the peri-interventional switch to conventional fluoroscopy guidance an option, XMR systems have been developed and are in use, combining MR system and conventional angiography [11,12]. Different designs are available on the market, with either the X-ray source between two halves of a magnet (so-called double doughnut) or keeping both systems separate connected by a patient transport lane (Fig.…”

Section: Mri Hardware and Visualization Toolsmentioning

confidence: 99%

MR-guided endovascular interventions: a comprehensive review on techniques and applications

et al. 2007

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The magnetic resonance (MR) guidance of endovascular interventions is probably one of the greatest challenges of clinical MR research. MR angiography is not only an imaging tool for the vasculature but can also simultaneously depict high tissue contrast, including the differentiation of the vascular wall and perivascular tissues, as well as vascular function. Several hurdles had to be overcome to allow MR guidance for endovascular interventions. MR hardware and sequence design had to be developed to achieve acceptable patient access and to allow real-time or near real-time imaging. The development of interventional devices, both applicable and safe for MR imaging (MRI), was also mandatory. The subject of this review is to summarize the latest developments in real-time MRI hardware, MRI, visualization tools, interventional devices, endovascular tracking techniques, actual applications and safety issues.

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“…Visualization of MR catheters in situ is based on passive and active approaches. Both passive (coating the shaft or tip of the catheter with paramagnetic markers, such as dysprosium oxide, gadolinium oxide, or ferrite admixture) [21,22] and active tracking (incorporating of a receiver coil into the shaft and tip of the catheter) [14,16,[23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42] are currently used in interventional procedures.…”

Section: Mr Devicesmentioning

confidence: 99%

An overview on the advances in cardiovascular interventional MR imaging

Saborowski

Saeed

2007

Magn Reson Mater Phy

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Interventional cardiovascular magnetic resonance imaging (iCMR) represents a new discipline whose systematic development will foster minimally invasive interventional procedures without radiation exposure. New generations of open, wide and short bore MR scanners and real time sequences made cardiovascular intervention possible. MR compatible endovascular catheters and guide-wires are needed for delivery of devices such as stents or atrial septal defect (ASD) closures. Catheter tracking is based on active and passive approaches. Currently performed MR-guided procedures are used to monitor, navigate and track endovascular catheters and to deliver local therapeutic agents to targets, such as infarcted myocardium and vascular walls. Heating of endovascular MR catheters, guide-wires and devices during imaging still presents high safety risks. MR contrast media improve the capabilities of MR imaging by enhancing blood signal, pathologic targets (such as myocardial infarctions and atherosclerotic plaques), endovascular catheters and by tracking injected therapeutic agents. Labeling injected soluble therapeutic agents, genes or cells with MR contrast media enables interventionalists to ensure the administration of the drugs in the target and to trace their distribution in the targets. The future clinical use of this iCMR technique requires (1) high spatial and temporal resolution imaging, (2) special catheters and devices and (3) effective therapeutic agents, genes or cells. These conditions are available at a low scale at the present time and need to be developed in the near future. Such progress will lead to improved patient care and minimize invasiveness.

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Use of a Nonmetallic Guide Wire for Magnetic Resonance-Guided Coronary Artery Catheterization

Cited by 43 publications

References 18 publications

MR-guided liver tumor ablation employing open high-field 1.0T MRI for image-guided brachytherapy

MR-guided liver tumor ablation employing open high-field 1.0T MRI for image-guided brachytherapy

MR-guided endovascular interventions: a comprehensive review on techniques and applications

An overview on the advances in cardiovascular interventional MR imaging

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