{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T13:13:49Z","timestamp":1789823629253,"version":"4.0.1"},"reference-count":15,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2011,11,29]],"date-time":"2011-11-29T00:00:00Z","timestamp":1322524800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2012,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose:<\/jats:title><jats:p>To design a deflectable guiding catheter that omits long metallic components yet preserves mechanical properties to facilitate therapeutic interventional MRI procedures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods:<\/jats:title><jats:p>The catheter shaft incorporated <jats:italic>Kevlar<\/jats:italic> braiding. A 180\u00b0 deflection was attained with a 5\u2010cm nitinol slotted tube, a nitinol spring, and a <jats:italic>Kevlar<\/jats:italic> pull string. We tested three designs: passive, passive incorporating an inductively coupled coil, and active receiver. We characterized mechanical properties, MRI properties, RF induced heating, and in vivo performance in swine.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p>Torque and tip deflection force were satisfactory. Representative procedures included hepatic and azygos vein access, laser cardiac septostomy, and atrial septal defect crossing. Visualization was best in the active configuration, delineating profile and tip orientation. The passive configuration could be used in tandem with an active guidewire to overcome its limited conspicuity. There was no RF\u2010induced heating in all configurations under expected use conditions in vitro and in vivo.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion:<\/jats:title><jats:p><jats:italic>Kevlar<\/jats:italic> and short nitinol component substitutions preserved mechanical properties. The active design offered the best visibility and usability but reintroduced metal conductors. We describe versatile deflectable guiding catheters with a 0.057\u201d lumen for interventional MRI catheterization. Implementations are feasible using active, inductive, and passive visualization strategies to suit application requirements. J. Magn. Reson. Imaging 2012;35:908\u2013915. \u00a9 2011 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.23520","type":"journal-article","created":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T01:26:47Z","timestamp":1322702807000},"page":"908-915","source":"Crossref","is-referenced-by-count":36,"title":["A deflectable guiding catheter for real\u2010time MRI\u2010guided interventions"],"prefix":"10.1002","volume":"35","author":[{"given":"Jamie A.","family":"Bell","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christina E.","family":"Saikus","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kanishka","family":"Ratnayaka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vincent","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Merdim","family":"Sonmez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anthony Z.","family":"Faranesh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jessica H.","family":"Colyer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert J.","family":"Lederman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ozgur","family":"Kocaturk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,11,29]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1186\/1532-429X-10-62"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.mric.2005.04.004"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCINTERVENTIONS.110.957209"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.21410"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.22152"},{"key":"e_1_2_6_7_2","volume-title":"Standard test method for measurement of radio frequency induced heating on or near passive implants during magnetic resonance imaging. 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