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10.1109/TBME.2015.2484262 http://scihub22266oqcxt.onion/10.1109/TBME.2015.2484262 C4862936!4862936!26441438     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       IEEE+Trans+Biomed+Eng 2016 ; 63 (6): 1167-77 Nephropedia Template TP {{tp|p=26441438|t=2016. Methods for Improving the Curvature of Steerable Needles in Biological Tissue |pdf=|usr=}}{{26441438}} gab.com Text Methods for Improving the Curvature of Steerable Needles in Biological Tissue JO: IEEE Trans Biomed Eng http://www.kidney.de/pget.php?&tw=1&pmid=26441438 #FOAvip Robotic needle steering systems have the potential to improve percutaneous interventions such as radiofrequency ablation of liver tumors, but steering techniques described to date have not achieved sufficiently small radius of curvature in biological tissue to be relevant to this application. In this work, the impact of tip geometry on steerable needle curvature is examined. Finite-element simulations and experiments with bent-tip needles in ex vivo liver tissue demonstrate that selection of tip length and angle can greatly improve curvature, with radius of curvature below 5 cm in liver tissue possible through judicious selection of these parameters. Motivated by the results of this analysis, a new articulated-tip steerable needle is described, in which a distal section is actively switched by a robotic system between a straight tip (resulting in a straight path) and a bent tip (resulting in a curved path). This approach allows the tip length and angle to be increased, while the straight configuration allows the needle tip to still pass through an introducer sheath and rotate inside the body. Validation testing in liver tissue shows that the new articulated-tip steerable needle achieves smaller radius of curvature compared to bent-tip needles described in previous work. Steerable needles with optimized tip parameters, which can generate tight curves in liver tissue, increase the clinical relevance of needle steering to percutaneous interventions. Twit Text FOAVip Methods for Improving the Curvature of Steerable Needles in Biological Tissue ????IEEE Trans Biomed Eng http://www.kidney.de/pget.php?&tw=1&pmid=26441438 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26441438 #FOAvip English Wikipedia <ref>{{Cite pmid|26441438}}</ref> Methods for Improving the Curvature of Steerable Needles in Biological Tissue #MMPMID26441438 Adebar TK; Greer JD; Laeseke PF; Hwang GL; Okamura AM IEEE Trans Biomed Eng 2016[Jun]; 63 (6): 1167-77 PMID26441438show ga Robotic needle steering systems have the potential to improve percutaneous interventions such as radiofrequency ablation of liver tumors, but steering techniques described to date have not achieved sufficiently small radius of curvature in biological tissue to be relevant to this application. In this work, the impact of tip geometry on steerable needle curvature is examined. Finite-element simulations and experiments with bent-tip needles in ex vivo liver tissue demonstrate that selection of tip length and angle can greatly improve curvature, with radius of curvature below 5 cm in liver tissue possible through judicious selection of these parameters. Motivated by the results of this analysis, a new articulated-tip steerable needle is described, in which a distal section is actively switched by a robotic system between a straight tip (resulting in a straight path) and a bent tip (resulting in a curved path). This approach allows the tip length and angle to be increased, while the straight configuration allows the needle tip to still pass through an introducer sheath and rotate inside the body. Validation testing in liver tissue shows that the new articulated-tip steerable needle achieves smaller radius of curvature compared to bent-tip needles described in previous work. Steerable needles with optimized tip parameters, which can generate tight curves in liver tissue, increase the clinical relevance of needle steering to percutaneous interventions. äMethods for Improving the Curvature of Steerable Needles in Biological(epmc).pdf DeepDyve Pubget Overpricing