Real-time magnetic resonance-guided placement of retrievable inferior vena cava filters: comparison with fluoroscopic guidance with use of in vitro and animal models

Journal of Vascular and Interventional Radiology : JVIR
Ming-Chen Paul ShihKlaus D Hagspiel

Abstract

To compare the precision of magnetic resonance (MR)-guided versus fluoroscopy-guided placement of retrievable inferior vena cava (IVC) filters with use of real-time MR imaging strategies optimized for each device in an in vitro model and in an animal model. Three different retrievable IVC filters were used in this study, including the Recovery, Günther Tulip, and OptEase devices. Experiments were performed on a 1.5 T-MR system with pre-release interactive MR software. For each device, high-resolution real-time MR imaging was optimized with use of steady-state free precession and fast low-angle shot sequences with radial and cartesian trajectories and varying flip angles (10 degrees -70 degrees ) and a frame rate of 2 per second. A custom-built IVC phantom was filled with dilute gadolinium contrast agent at a concentration of 0.05 mmol/L simulating a blood T1 of 8 msec and T2 of 6 msec. Signal intensities were measured in regions of interest at the filter, the IVC lumen, and the background. The contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) were calculated. The sequence suited best for each device was chosen for in vitro filter placement in a custom-made IVC phantom. Each device was deployed five times each under ...Continue Reading

References

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Citations

Aug 23, 2006·Topics in Magnetic Resonance Imaging : TMRI·Cengizhan OzturkRobert J Lederman
Nov 21, 2007·Topics in Magnetic Resonance Imaging : TMRI·Victor A Ferrari, Robert L Wilensky
Dec 31, 2008·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Kanishka RatnayakaRobert J Lederman
Oct 29, 2011·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Jerold S ShinbaneFrank G Shellock
Nov 29, 2011·Magnetic Resonance Imaging Clinics of North America·Aphrodite TzifaReza Razavi
Apr 13, 2011·Journal of Vascular and Interventional Radiology : JVIR·Ming-Chen Paul ShihKlaus D Hagspiel
Oct 27, 2015·Magnetic Resonance Imaging Clinics of North America·Fabio SettecaseSteven W Hetts
Jan 26, 2008·Journal of Magnetic Resonance Imaging : JMRI·Michael Bock, Frank K Wacker
Jan 8, 2009·Clinical Oral Implants Research·Marcus KleinHeinz Duschner
May 12, 2009·Minimally Invasive Therapy & Allied Technologies : MITAT : Official Journal of the Society for Minimally Invasive Therapy·Sebastian KosDeniz Bilecen
Oct 11, 2020·Current Cardiology Reports·Tomohito Kogure, Shakeel A Qureshi

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