Interventionel MRT: Current Inventory and Preview

Wacker, Frank

doi:10.1055/s-2004-813318

Cited by 2 publications

(2 citation statements)

References 10 publications

(11 reference statements)

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“…(1) Free patient access, in combination with (2) fast MR data acquisition and (3) a high image quality. In reality interventional imaging is a trade-off between patient access, field of view, signal-to-noise ratio (SNR) and costs.…”

Section: Mri Hardware and Visualization Toolsmentioning

confidence: 99%

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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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Section: Mri Hardware and Visualization Toolsmentioning

confidence: 99%

“…In addition, functional parameters like flow, temperature, tissue oxygenation, perfusion and diffusion can also be visualized and might influence the end-point of an endovascular intervention in the near future [1]. Because of this, MRI is a valuable tool for endovascular procedures [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2007

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MR-compatible polyetheretherketone-based guide wire assisting MR-guided stenting of iliac and supraaortic arteries in swine: Feasibility study

Kos

Huegli

Hofmann

et al. 2009

Minimally Invasive Therapy & Allied Technologies

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The purpose of this study was to demonstrate first magnetic resonance (MR)-guided stenting of iliac and supraaortic arteries using a polyetheretherketone-based (PEEK) MR-compatible guide wire. In vitro and animal experiments were performed in a short magnet wide-bore scanner (1.5 Tesla, Espree, Siemens Healthcare, Erlangen, Germany). For all experiments, a 0.035'' MR-compatible guide wire prototoype was used. This wire had a compound core of PEEK with reinforcing fibres, a soft and atraumatic tip and a hydrophilic coating. For its passive visualization, paramagnetic markings were attached. All experiments were performed through a vascular introducer sheath under MR-guidance. In vitro repetitive selective over the wire catheterizations of either the right carotid artery and the left subclavian artery were performed. In vivo, selective catheterization and over-the-wire stenting of the brachiocephalic trunk and the left subclavian artery were performed. The common iliac arteries were catheterized retrogradely (left) and cross-over (right). Angioplasty and stenting were performed over-the-wire. All procedures were successful. Visibility of the PEEK-based guide-wire was rated good in vitro and acceptable in vivo. Guide wire pushability and endovascular device support were good. The PEEK-based MR-compatible guide wire is well visible and usable under MR-guidance. It supports over-the-wire treatment of iliac arteries and supraaortic arteries.

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Interventionel MRT: Current Inventory and Preview

Cited by 2 publications

References 10 publications

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

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

MR-compatible polyetheretherketone-based guide wire assisting MR-guided stenting of iliac and supraaortic arteries in swine: Feasibility study

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