Effects of Percutaneous Transluminal Angioplasty and Endovascular Brachytherapy on Vascular Remodeling of Human Femoropopliteal Artery: 2 Years Follow-up by Noninvasive Magnetic Resonance Imaging

Wyttenbach, Rolf; Corti, Roberto; Alerci, Mario; Cozzi, Luca; Valentino, Marcello Di; Segatto, Jeanne-Marie; Badimón, Juan J.; Fuster, Valentín; Gallino, Augusto

doi:10.1016/j.ejvs.2007.05.017

Cited by 13 publications

(6 citation statements)

References 29 publications

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“…Benefits include evaluation of atherosclerotic plaque burden, barotrauma after angioplasty, and monitoring the release of agents from drug-eluting stents and drug-coated balloons. 61 Dynamic imaging with steady-state free procession sequences allows real-time catheter guidance and steering with dilute gadolinium contrast used for DSA-like angiography. Advanced sequences allow for four-dimensional datasets to provide flexible roadmaps for intravascular procedures.…”

Section: Mri and Hybrid Mrimentioning

confidence: 99%

Navigational Tools for Interventional Radiology and Interventional Oncology Applications

Chehab

Brinjikji

Copelan

et al. 2015

Semin intervent Radiol

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The interventional radiologist is increasingly called upon to successfully access challenging biopsy and ablation targets, which may be difficult based on poor visualization, small size, or the proximity of vulnerable regional anatomy. Complex therapeutic procedures, including tumor ablation and transarterial oncologic therapies, can be associated with procedural risk, significant procedure time, and measurable radiation time. Navigation tools, including electromagnetic, optical, laser, and robotic guidance systems, as well as image fusion platforms, have the potential to facilitate these complex interventions with the potential to improve lesion targeting, reduce procedure time, and radiation dose, and thus potentially improve patient outcomes. This review will provide an overview of currently available navigational tools and their application to interventional radiology and oncology. A summary of the pertinent literature on the use of these tools to improve safety and efficacy of interventional procedures compared with conventional techniques will be presented.

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Section: Mri and Hybrid Mrimentioning

confidence: 99%

Navigational Tools for Interventional Radiology and Interventional Oncology Applications

Chehab

Brinjikji

Copelan

et al. 2015

Semin intervent Radiol

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“…Maki, et al [55]compared 3D SSFP MRA to CE-MRA at 1.5T in 40 patients and showed that 3D SSFP MRA had a sensitivity of 100% and specificity of 84%. Similarly, Wyttenbach, et al [56] evaluated 53 patients suspected of renal artery stenosis with 3D SSFP and CE-MRA at 1.5T, with 3D SSFP MRA having a sensitivity and specificty of 100% and 84%, respectively. A study by Lanzman et al [57] compared the image quality and visibility of renal arteries at 1.5T and 3.0T and demonstrated a significant gain in SNR and CNR at 3.0T of 13-16% and 16-23% respectively, with the greatest improvement of mean image quality at the segmental artery branches.…”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance angiography: current status and future directions

Hartung

Grist

François

2011

Journal of Cardiovascular Magnetic Resonance

166

113

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With recent improvement in hardware and software techniques, magnetic resonance angiography (MRA) has undergone significant changes in technique and approach. The advent of 3.0 T magnets has allowed reduction in exogenous contrast dose without compromising overall image quality. The use of novel intravascular contrast agents substantially increases the image windows and decreases contrast dose. Additionally, the lower risk and cost in non-contrast enhanced (NCE) MRA has sparked renewed interest in these methods. This article discusses the current state of both contrast-enhanced (CE) and NCE-MRA. New CE-MRA methods take advantage of dose reduction at 3.0 T, novel contrast agents, and parallel imaging methods. The risks of gadolinium-based contrast media, and the NCE-MRA methods of time-of-flight, steady-state free precession, and phase contrast are discussed.

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“…Examples include evaluating vessel wall barotraumas and remodeling following balloon angioplasty, and monitoring the release of antirestenotic agents from the top surface of drug-eluting stents and drug-coated balloons. 62 High SNR and imaging speed are necessary for real-time MR-fluoroscopic guided catheter steering and guidewire manipulation inside human vessels. Real-time imaging is available with steady-state free precession (SSFP) sequences, and diluted gadolinium agents may be infused to increase blood contrast and provide DSA-like angiography.…”

Section: Iie Interventional Mr and Hybrid Xmrmentioning

confidence: 99%

Emerging technologies for image guidance and device navigation in interventional radiology

Kagadis¹,

Κατσάνος²,

Karnabatidis³

et al. 2012

Medical Physics

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Recent developments in image-guidance and device navigation, along with emerging robotic technologies, are rapidly transforming the landscape of interventional radiology (IR). Future state-of-the-art IR procedures may include real-time three-dimensional imaging that is capable of visualizing the target organ, interventional tools, and surrounding anatomy with high spatial and temporal resolution. Remote device actuation is becoming a reality with the introduction of novel magnetic-field enabled instruments and remote robotic steering systems. Robots offer several degrees of freedom and unprecedented accuracy, stability, and dexterity during device navigation, propulsion, and actuation. Optimization of tracking and navigation of interventional tools inside the human body will be critical in converting IR suites into the minimally invasive operating theaters of the future with increased safety and unsurpassed therapeutic efficacy. In the not too distant future, individual image guidance modalities and device tracking methods could merge into autonomous, multimodality, multiparametric platforms that offer real-time data of anatomy, morphology, function, and metabolism along with on-the-fly computational modeling and remote robotic actuation. The authors provide a concise overview of the latest developments in image guidance and device navigation, while critically envisioning what the future might hold for 2020 IR procedures.

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Effects of Percutaneous Transluminal Angioplasty and Endovascular Brachytherapy on Vascular Remodeling of Human Femoropopliteal Artery: 2 Years Follow-up by Noninvasive Magnetic Resonance Imaging

Cited by 13 publications

References 29 publications

Navigational Tools for Interventional Radiology and Interventional Oncology Applications

Navigational Tools for Interventional Radiology and Interventional Oncology Applications

Magnetic resonance angiography: current status and future directions

Emerging technologies for image guidance and device navigation in interventional radiology

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