The Experts below are selected from a list of 216 Experts worldwide ranked by ideXlab platform

Andy Gijbels - One of the best experts on this subject based on the ideXlab platform.

  • ICRA - Development and Experimental Validation of a Combined FBG Force and OCT Distance Sensing Needle for Robot-Assisted Retinal Vein Cannulation
    2018 IEEE International Conference on Robotics and Automation (ICRA), 2018
    Co-Authors: Jonas Smits, Andy Gijbels, Peter Stalmans, Mouloud Ourak, Laure Esteveny, Gianni Borghesan, Laurent Schoevaerdts, Koen Willekens, Eva Lankenau, Hinnerk Schulz-hildebrandt
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation followed by injection of an anti-coagulant into the affected vein is a promising treatment. However, given the scale and fragility of the surgical workfield, this procedure is considered too high-risk to perform manually. A first successful robot-assisted procedure has been demonstrated. Even though successful, the procedure remains extremely challenging. This paper aims at providing a solution for the limited perception of instrument-tissue interaction forces as well as depth estimation during Retinal vein cannulation. The development of a novel combined force and distance sensing cannulation needle relying on Fiber Bragg grating (FBG) and Optical Coherence Tomography (OCT) A-scan technology is reported. The design, the manufacturing process, the calibration method, and the experimental characterization of the produced sensor are discussed. The functionality of the combined sensing modalities and the real-time distance estimation algorithm are validated respectively on in-vitro and ex-vivo models.

  • ICRA - Development and experimental validation of a force sensing needle for robotically assisted Retinal vein cannulations
    2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation and subsequent injection of anti-coagulant in the affected vein is a promising treatment. Given the scale and the fragility of Retinal veins on one side and the surgeons limited positioning precision and force perception on the other side, this procedure is considered too risky to perform manually at the moment. The paper tackles the limited force perception problem. The development of a novel force sensing cannulation needle based on Fiber Bragg Gratings is reported. The design, the calibration method and the experimental characterization of the produced force sensor are discussed. The functionality of the needle is validated by measuring puncture forces during cannulations in a custom-made retina model.

  • BioRob - Experimental Validation of a Robotic Comanipulation and Telemanipulation System for Retinal Surgery
    5th IEEE RAS EMBS International Conference on Biomedical Robotics and Biomechatronics, 2014
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Benjamin Gorissen, Alain Devreker, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation is a promising treatment, but given the small diameter of Retinal veins and the surgeon's limited positioning precision, it is considered too risky to perform this procedure manually. The authors previously reported on the development of both a robotic comanipulation and telemanipulation system which have the potential to augment the surgeon's positioning precision. This work investigates the potential benefit of these systems for Retinal surgery. For this purpose, a targeting test setup was developed to quantify the attainable positioning precision one can expect when using the robotic systems during procedures like Retinal vein cannulation. Ten subjects completed targeting tests in a free-hand, comanipulation and telemanipulation fashion. Results show that both the usage of the comanipulation and telemanipulation system significantly improve the positioning precision compared to a free-hand test. The telemanipulation system currently outperforms the comanipulation system with respect to precision, while subjects appreciate the remarkable ease of use of the comanipulation system.

  • IROS - Design and realisation of a novel robotic manipulator for Retinal surgery
    2013 IEEE RSJ International Conference on Intelligent Robots and Systems, 2013
    Co-Authors: Andy Gijbels, Peter Stalmans, Dominiek Reynaerts, Niels Wouters, H. Van Brussel, E.b. Vander Poorten
    Abstract:

    Retinal Vein Occlusion (RVO) is a common Retinal Vascular Disorder which may cause severe loss of vision. Retinal cannulation appears to be the most effective treatment, but given the small diameter of a Retinal vein, it is too difficult and risky for a surgeon to perform this procedure manually. This work reports on the development of an innovative robotic manipulator to assist vitreoRetinal surgeons during this procedure using a co-manipulation control strategy. The robotic manipulator features a new Remote-Center-of-Motion mechanism with four degrees of freedom. This mechanism is particularly interesting for applications in minimally invasive surgery where an instrument needs to be manoeuvred in a highly confined space around a fixed incision point. The developed manipulator is shown to be a great asset in improving the quality of Retinal cannulations compared to the manual procedure. This is shown by cannulation experiments performed on a custom made eye model and an injectable retina model that effectively simulate real Retinal cannulations.

Paul B Greenberg - One of the best experts on this subject based on the ideXlab platform.

  • anti Vascular endothelial growth factor for macular oedema secondary to central Retinal vein occlusion
    Cochrane Database of Systematic Reviews, 2014
    Co-Authors: Tasanee Braithwaite, Afshan A Nanji, Kristina Lindsley, Paul B Greenberg
    Abstract:

    Background Central Retinal vein occlusion (CRVO) is a common Retinal Vascular Disorder in which macular edema (ME) may develop, with a consequent reduction in visual acuity. The visual prognosis in CRVO-ME is poor in a substantial proportion of patients, especially those with the ischemic subtype, and until recently there has been no treatment of proven benefit. Macular grid laser treatment is ineffective, and whilst a few recent randomized controlled trials (RCTs) suggest short-term gains in visual acuity with intravitreal steroids for patients with non-ischemic CRVO-ME, there is no established treatment for ischemic CRVO-ME. Anti-Vascular endothelial growth factor (anti-VEGF) agents have been used to treat ME resulting from a variety of causes and may represent a treatment option for CRVO-ME.

  • The Cochrane Library - Anti-Vascular endothelial growth factor for macular oedema secondary to central Retinal vein occlusion.
    The Cochrane database of systematic reviews, 2010
    Co-Authors: Tasanee Braithwaite, Afshan A Nanji, Kristina Lindsley, Paul B Greenberg
    Abstract:

    Background Central Retinal vein occlusion (CRVO) is a common Retinal Vascular Disorder in which macular edema (ME) may develop, with a consequent reduction in visual acuity. The visual prognosis in CRVO-ME is poor in a substantial proportion of patients, especially those with the ischemic subtype, and until recently there has been no treatment of proven benefit. Macular grid laser treatment is ineffective, and whilst a few recent randomized controlled trials (RCTs) suggest short-term gains in visual acuity with intravitreal steroids for patients with non-ischemic CRVO-ME, there is no established treatment for ischemic CRVO-ME. Anti-Vascular endothelial growth factor (anti-VEGF) agents have been used to treat ME resulting from a variety of causes and may represent a treatment option for CRVO-ME.

Peter Stalmans - One of the best experts on this subject based on the ideXlab platform.

  • ICRA - Development and Experimental Validation of a Combined FBG Force and OCT Distance Sensing Needle for Robot-Assisted Retinal Vein Cannulation
    2018 IEEE International Conference on Robotics and Automation (ICRA), 2018
    Co-Authors: Jonas Smits, Andy Gijbels, Peter Stalmans, Mouloud Ourak, Laure Esteveny, Gianni Borghesan, Laurent Schoevaerdts, Koen Willekens, Eva Lankenau, Hinnerk Schulz-hildebrandt
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation followed by injection of an anti-coagulant into the affected vein is a promising treatment. However, given the scale and fragility of the surgical workfield, this procedure is considered too high-risk to perform manually. A first successful robot-assisted procedure has been demonstrated. Even though successful, the procedure remains extremely challenging. This paper aims at providing a solution for the limited perception of instrument-tissue interaction forces as well as depth estimation during Retinal vein cannulation. The development of a novel combined force and distance sensing cannulation needle relying on Fiber Bragg grating (FBG) and Optical Coherence Tomography (OCT) A-scan technology is reported. The design, the manufacturing process, the calibration method, and the experimental characterization of the produced sensor are discussed. The functionality of the combined sensing modalities and the real-time distance estimation algorithm are validated respectively on in-vitro and ex-vivo models.

  • ICRA - Development and experimental validation of a force sensing needle for robotically assisted Retinal vein cannulations
    2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation and subsequent injection of anti-coagulant in the affected vein is a promising treatment. Given the scale and the fragility of Retinal veins on one side and the surgeons limited positioning precision and force perception on the other side, this procedure is considered too risky to perform manually at the moment. The paper tackles the limited force perception problem. The development of a novel force sensing cannulation needle based on Fiber Bragg Gratings is reported. The design, the calibration method and the experimental characterization of the produced force sensor are discussed. The functionality of the needle is validated by measuring puncture forces during cannulations in a custom-made retina model.

  • BioRob - Experimental Validation of a Robotic Comanipulation and Telemanipulation System for Retinal Surgery
    5th IEEE RAS EMBS International Conference on Biomedical Robotics and Biomechatronics, 2014
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Benjamin Gorissen, Alain Devreker, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation is a promising treatment, but given the small diameter of Retinal veins and the surgeon's limited positioning precision, it is considered too risky to perform this procedure manually. The authors previously reported on the development of both a robotic comanipulation and telemanipulation system which have the potential to augment the surgeon's positioning precision. This work investigates the potential benefit of these systems for Retinal surgery. For this purpose, a targeting test setup was developed to quantify the attainable positioning precision one can expect when using the robotic systems during procedures like Retinal vein cannulation. Ten subjects completed targeting tests in a free-hand, comanipulation and telemanipulation fashion. Results show that both the usage of the comanipulation and telemanipulation system significantly improve the positioning precision compared to a free-hand test. The telemanipulation system currently outperforms the comanipulation system with respect to precision, while subjects appreciate the remarkable ease of use of the comanipulation system.

  • IROS - Design and realisation of a novel robotic manipulator for Retinal surgery
    2013 IEEE RSJ International Conference on Intelligent Robots and Systems, 2013
    Co-Authors: Andy Gijbels, Peter Stalmans, Dominiek Reynaerts, Niels Wouters, H. Van Brussel, E.b. Vander Poorten
    Abstract:

    Retinal Vein Occlusion (RVO) is a common Retinal Vascular Disorder which may cause severe loss of vision. Retinal cannulation appears to be the most effective treatment, but given the small diameter of a Retinal vein, it is too difficult and risky for a surgeon to perform this procedure manually. This work reports on the development of an innovative robotic manipulator to assist vitreoRetinal surgeons during this procedure using a co-manipulation control strategy. The robotic manipulator features a new Remote-Center-of-Motion mechanism with four degrees of freedom. This mechanism is particularly interesting for applications in minimally invasive surgery where an instrument needs to be manoeuvred in a highly confined space around a fixed incision point. The developed manipulator is shown to be a great asset in improving the quality of Retinal cannulations compared to the manual procedure. This is shown by cannulation experiments performed on a custom made eye model and an injectable retina model that effectively simulate real Retinal cannulations.

Dominiek Reynaerts - One of the best experts on this subject based on the ideXlab platform.

  • ICRA - Development and experimental validation of a force sensing needle for robotically assisted Retinal vein cannulations
    2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation and subsequent injection of anti-coagulant in the affected vein is a promising treatment. Given the scale and the fragility of Retinal veins on one side and the surgeons limited positioning precision and force perception on the other side, this procedure is considered too risky to perform manually at the moment. The paper tackles the limited force perception problem. The development of a novel force sensing cannulation needle based on Fiber Bragg Gratings is reported. The design, the calibration method and the experimental characterization of the produced force sensor are discussed. The functionality of the needle is validated by measuring puncture forces during cannulations in a custom-made retina model.

  • BioRob - Experimental Validation of a Robotic Comanipulation and Telemanipulation System for Retinal Surgery
    5th IEEE RAS EMBS International Conference on Biomedical Robotics and Biomechatronics, 2014
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Benjamin Gorissen, Alain Devreker, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation is a promising treatment, but given the small diameter of Retinal veins and the surgeon's limited positioning precision, it is considered too risky to perform this procedure manually. The authors previously reported on the development of both a robotic comanipulation and telemanipulation system which have the potential to augment the surgeon's positioning precision. This work investigates the potential benefit of these systems for Retinal surgery. For this purpose, a targeting test setup was developed to quantify the attainable positioning precision one can expect when using the robotic systems during procedures like Retinal vein cannulation. Ten subjects completed targeting tests in a free-hand, comanipulation and telemanipulation fashion. Results show that both the usage of the comanipulation and telemanipulation system significantly improve the positioning precision compared to a free-hand test. The telemanipulation system currently outperforms the comanipulation system with respect to precision, while subjects appreciate the remarkable ease of use of the comanipulation system.

  • IROS - Design and realisation of a novel robotic manipulator for Retinal surgery
    2013 IEEE RSJ International Conference on Intelligent Robots and Systems, 2013
    Co-Authors: Andy Gijbels, Peter Stalmans, Dominiek Reynaerts, Niels Wouters, H. Van Brussel, E.b. Vander Poorten
    Abstract:

    Retinal Vein Occlusion (RVO) is a common Retinal Vascular Disorder which may cause severe loss of vision. Retinal cannulation appears to be the most effective treatment, but given the small diameter of a Retinal vein, it is too difficult and risky for a surgeon to perform this procedure manually. This work reports on the development of an innovative robotic manipulator to assist vitreoRetinal surgeons during this procedure using a co-manipulation control strategy. The robotic manipulator features a new Remote-Center-of-Motion mechanism with four degrees of freedom. This mechanism is particularly interesting for applications in minimally invasive surgery where an instrument needs to be manoeuvred in a highly confined space around a fixed incision point. The developed manipulator is shown to be a great asset in improving the quality of Retinal cannulations compared to the manual procedure. This is shown by cannulation experiments performed on a custom made eye model and an injectable retina model that effectively simulate real Retinal cannulations.

E.b. Vander Poorten - One of the best experts on this subject based on the ideXlab platform.

  • ICRA - Development and experimental validation of a force sensing needle for robotically assisted Retinal vein cannulations
    2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation and subsequent injection of anti-coagulant in the affected vein is a promising treatment. Given the scale and the fragility of Retinal veins on one side and the surgeons limited positioning precision and force perception on the other side, this procedure is considered too risky to perform manually at the moment. The paper tackles the limited force perception problem. The development of a novel force sensing cannulation needle based on Fiber Bragg Gratings is reported. The design, the calibration method and the experimental characterization of the produced force sensor are discussed. The functionality of the needle is validated by measuring puncture forces during cannulations in a custom-made retina model.

  • BioRob - Experimental Validation of a Robotic Comanipulation and Telemanipulation System for Retinal Surgery
    5th IEEE RAS EMBS International Conference on Biomedical Robotics and Biomechatronics, 2014
    Co-Authors: Andy Gijbels, E.b. Vander Poorten, Peter Stalmans, Benjamin Gorissen, Alain Devreker, Dominiek Reynaerts
    Abstract:

    Retinal Vein Occlusion is a common Retinal Vascular Disorder which can cause severe loss of vision. Retinal vein cannulation is a promising treatment, but given the small diameter of Retinal veins and the surgeon's limited positioning precision, it is considered too risky to perform this procedure manually. The authors previously reported on the development of both a robotic comanipulation and telemanipulation system which have the potential to augment the surgeon's positioning precision. This work investigates the potential benefit of these systems for Retinal surgery. For this purpose, a targeting test setup was developed to quantify the attainable positioning precision one can expect when using the robotic systems during procedures like Retinal vein cannulation. Ten subjects completed targeting tests in a free-hand, comanipulation and telemanipulation fashion. Results show that both the usage of the comanipulation and telemanipulation system significantly improve the positioning precision compared to a free-hand test. The telemanipulation system currently outperforms the comanipulation system with respect to precision, while subjects appreciate the remarkable ease of use of the comanipulation system.

  • IROS - Design and realisation of a novel robotic manipulator for Retinal surgery
    2013 IEEE RSJ International Conference on Intelligent Robots and Systems, 2013
    Co-Authors: Andy Gijbels, Peter Stalmans, Dominiek Reynaerts, Niels Wouters, H. Van Brussel, E.b. Vander Poorten
    Abstract:

    Retinal Vein Occlusion (RVO) is a common Retinal Vascular Disorder which may cause severe loss of vision. Retinal cannulation appears to be the most effective treatment, but given the small diameter of a Retinal vein, it is too difficult and risky for a surgeon to perform this procedure manually. This work reports on the development of an innovative robotic manipulator to assist vitreoRetinal surgeons during this procedure using a co-manipulation control strategy. The robotic manipulator features a new Remote-Center-of-Motion mechanism with four degrees of freedom. This mechanism is particularly interesting for applications in minimally invasive surgery where an instrument needs to be manoeuvred in a highly confined space around a fixed incision point. The developed manipulator is shown to be a great asset in improving the quality of Retinal cannulations compared to the manual procedure. This is shown by cannulation experiments performed on a custom made eye model and an injectable retina model that effectively simulate real Retinal cannulations.