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Kilbride BF, Narsinh KH, Jordan CD, Mueller K, Moore T, Martin AJ, Wilson MW, Hetts SW. MRI-guided endovascular intervention: current methods and future potential. Expert Rev Med Devices 2022; 19:763-778. [PMID: 36373162 PMCID: PMC9869980 DOI: 10.1080/17434440.2022.2141110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Image-guided endovascular interventions, performed using the insertion and navigation of catheters through the vasculature, have been increasing in number over the years, as minimally invasive procedures continue to replace invasive surgical procedures. Such endovascular interventions are almost exclusively performed under x-ray fluoroscopy, which has the best spatial and temporal resolution of all clinical imaging modalities. Magnetic resonance imaging (MRI) offers unique advantages and could be an attractive alternative to conventional x-ray guidance, but also brings with it distinctive challenges. AREAS COVERED In this review, the benefits and limitations of MRI-guided endovascular interventions are addressed, systems and devices for guiding such interventions are summarized, and clinical applications are discussed. EXPERT OPINION MRI-guided endovascular interventions are still relatively new to the interventional radiology field, since significant technical hurdles remain to justify significant costs and demonstrate safety, design, and robustness. Clinical applications of MRI-guided interventions are promising but their full potential may not be realized until proper tools designed to function in the MRI environment are available. Translational research and further preclinical studies are needed before MRI-guided interventions will be practical in a clinical interventional setting.
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Affiliation(s)
- Bridget F. Kilbride
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - Kazim H. Narsinh
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | | | | | - Teri Moore
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - Alastair J. Martin
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - Mark W. Wilson
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - Steven W. Hetts
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
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Lillaney PV, Yang JK, Losey AD, Martin AJ, Cooke DL, Thorne BRH, Barry DC, Chu A, Stillson C, Do L, Arenson RL, Saeed M, Wilson MW, Hetts SW. Endovascular MR-guided Renal Embolization by Using a Magnetically Assisted Remote-controlled Catheter System. Radiology 2016; 281:219-28. [PMID: 27019290 DOI: 10.1148/radiol.2016152036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Purpose To assess the feasibility of a magnetically assisted remote-controlled (MARC) catheter system under magnetic resonance (MR) imaging guidance for performing a simple endovascular procedure (ie, renal artery embolization) in vivo and to compare with x-ray guidance to determine the value of MR imaging guidance and the specific areas where the MARC system can be improved. Materials and Methods In concordance with the Institutional Animal Care and Use Committee protocol, in vivo renal artery navigation and embolization were tested in three farm pigs (mean weight 43 kg ± 2 [standard deviation]) under real-time MR imaging at 1.5 T. The MARC catheter device was constructed by using an intramural copper-braided catheter connected to a laser-lithographed saddle coil at the distal tip. Interventionalists controlled an in-room cart that delivered electrical current to deflect the catheter in the MR imager. Contralateral kidneys were similarly embolized under x-ray guidance by using standard clinical catheters and guidewires. Changes in renal artery flow and perfusion were measured before and after embolization by using velocity-encoded and perfusion MR imaging. Catheter navigation times, renal parenchymal perfusion, and renal artery flow rates were measured for MR-guided and x-ray-guided embolization procedures and are presented as means ± standard deviation in this pilot study. Results Embolization was successful in all six kidneys under both x-ray and MR imaging guidance. Mean catheterization time with MR guidance was 93 seconds ± 56, compared with 60 seconds ± 22 for x-ray guidance. Mean changes in perfusion rates were 4.9 au/sec ± 0.8 versus 4.6 au/sec ± 0.6, and mean changes in renal flow rate were 2.1 mL/min/g ± 0.2 versus 1.9 mL/min/g ± 0.2 with MR imaging and x-ray guidance, respectively. Conclusion The MARC catheter system is feasible for renal artery catheterization and embolization under real-time MR imaging in vivo, and quantitative physiologic measures under MR imaging guidance were similar to those measured under x-ray guidance, suggesting that the MARC catheter system could be used for endovascular procedures with interventional MR imaging. (©) RSNA, 2016.
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Affiliation(s)
- Prasheel V Lillaney
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Jeffrey K Yang
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Aaron D Losey
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Alastair J Martin
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Daniel L Cooke
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Bradford R H Thorne
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - David C Barry
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Andrew Chu
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Carol Stillson
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Loi Do
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Ronald L Arenson
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Maythem Saeed
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Mark W Wilson
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
| | - Steven W Hetts
- From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, 185 Berry St, Suite 350, Room 320, San Francisco, CA 94107-5705 (P.V.L., J.K.Y., A.D.L., A.J.M., D.L.C., B.R.H.T., C.S., L.D., R.L.A., M.S., M.W.W., S.W.H.); and Penumbra, Alameda, Calif (D.C.B., A.C.)
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Moftakhar P, Lillaney P, Losey AD, Cooke DL, Martin AJ, Thorne BRH, Arenson RL, Saeed M, Wilson MW, Hetts SW. New-Generation Laser-lithographed Dual-Axis Magnetically Assisted Remote-controlled Endovascular Catheter for Interventional MR Imaging: In Vitro Multiplanar Navigation at 1.5 T and 3 T versus X-ray Fluoroscopy. Radiology 2015; 277:842-52. [PMID: 26030659 DOI: 10.1148/radiol.2015142648] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
PURPOSE To assess the feasibility of multiplanar vascular navigation with a new magnetically assisted remote-controlled (MARC) catheter with real-time magnetic resonance (MR) imaging at 1.5 T and 3 T and to compare it with standard x-ray guidance in simulated endovascular catheterization procedures. MATERIALS AND METHODS A 1.6-mm-diameter custom clinical-grade microcatheter prototype with lithographed double-saddle coils at the distal tip was deflected with real-time MR imaging. Two inexperienced operators and two experienced operators catheterized anteroposterior (celiac, superior mesenteric, and inferior mesenteric arteries) and mediolateral (renal arteries) branch vessels in a cryogel abdominal aortic phantom. This was repeated with conventional x-ray fluoroscopy by using clinical catheters and guidewires. Mean procedure times and percentage success data were analyzed with linear mixed-effects regression. RESULTS The MARC catheter tip was visible at 1.5 T and 3 T. Among inexperienced operators, MARC MR imaging guidance was not statistically different from x-ray guidance at 1.5 T (67% successful vessel selection turns with MR imaging vs 76% with x-ray guidance, P = .157) and at 3 T (75% successful turns with MR imaging vs 76% with x-ray guidance, P = .869). Experienced operators were more successful in catheterizing vessels with x-ray guidance (98% success within 60 seconds) than with 1.5-T (65%, P < .001) or 3-T (75%) MR imaging. Among inexperienced operators, mean procedure time was nearly equivalent by using MR imaging (31 seconds) and x-ray guidance (34 seconds, P = .436). Among experienced operators, catheterization was faster with x-ray guidance (20 seconds) compared with 1.5-T MR imaging (42 seconds, P < .001), but MARC guidance improved at 3 T (31 seconds). MARC MR imaging guidance at 3 T was not significantly different from x-ray guidance for the celiac (P = .755), superior mesenteric (P = .358), and inferior mesenteric (P = .065) arteries. CONCLUSION Multiplanar navigation with a new MARC catheter with real-time MR imaging at 1.5 T and 3 T is feasible and comparable to x-ray guidance for anteroposterior vessels at 3 T in a vascular phantom.
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Affiliation(s)
- Parham Moftakhar
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Prasheel Lillaney
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Aaron D Losey
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Daniel L Cooke
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Alastair J Martin
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Bradford R H Thorne
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Ronald L Arenson
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Maythem Saeed
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Mark W Wilson
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
| | - Steven W Hetts
- From the Department of Radiology and Biomedical Imaging, University of California-San Francisco, 505 Parnassus Ave, L-352, San Francisco, CA 94143-0628
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