TU Darmstadt / ULB / TUbiblio

Unique set-up for training of CTO intervention and evaluation of new catheter technologies with haptic feedback

Hatzfeld, Christian and Stefanova, Nataliya and Opitz, Thomas and Genzel, Jochen and Werthschützky, Roland and Kupnik, Mario and Voelker, Wolfram Technische Universität Darmstadt, Juliusspital Würzburg, Uniklinikum Würzburg (Corporate Creators) (2016):
Unique set-up for training of CTO intervention and evaluation of new catheter technologies with haptic feedback.
In: BMT 2016, Dreiländertagung, Basel, [Conference or Workshop Item]

Abstract

Recanalization of chronic total occlusions of coronary vessels is a wide-spread catheter intervention with proven bene-fit for the patient. However, it incorporates a certain risk of penetrating the vessel as well as increasing patient’s expo-sure to radiation and contrast agent with longer procedural time. As with many medical applications, the physician’s expertise is a key to successful interventions. In this work, we present a specially designed model circuit, which provides CTO-training for interventional cardiologists. As a test scenario, a silicone model of a coronary vessel is modified to ex-hibit comparable haptic properties of a CTO with and without microchannels. Expert evaluation in the development phase will ensure a realistic haptic impression of the model. Extending the state-of-the-art, a special guide wire from the HapCath project with a diameter of 0.014 inch and an integrated force sensor at the tip can measure the intracorporal forces of the intervention. Additionally, a modified torquer with an integrated single-axis force sensor is used to meas-ure the forces executed by the cardiologist during the test procedure. The movement of the guide wire is measured by an encoder in order to assess movement-based quality criteria. A camera setup with software filtering is used to obtain an x-ray-like image of the training scenario that can be used with a human-machine-interface similar to a real operat-ing setup. Applied x-ray and contrast agent doses can be measured as well. Thus, a new training and evaluation setting for CTO training with haptic feedback will be developed to optimize training in interventional cardiology and to evalu-ate new technologies for the interventional treatment of these challenging scenarios. The setup will also help to evalu-ate whether haptic facilitates the CTO-intervention.

Item Type: Conference or Workshop Item
Erschienen: 2016
Creators: Hatzfeld, Christian and Stefanova, Nataliya and Opitz, Thomas and Genzel, Jochen and Werthschützky, Roland and Kupnik, Mario and Voelker, Wolfram
Title: Unique set-up for training of CTO intervention and evaluation of new catheter technologies with haptic feedback
Language: English
Abstract:

Recanalization of chronic total occlusions of coronary vessels is a wide-spread catheter intervention with proven bene-fit for the patient. However, it incorporates a certain risk of penetrating the vessel as well as increasing patient’s expo-sure to radiation and contrast agent with longer procedural time. As with many medical applications, the physician’s expertise is a key to successful interventions. In this work, we present a specially designed model circuit, which provides CTO-training for interventional cardiologists. As a test scenario, a silicone model of a coronary vessel is modified to ex-hibit comparable haptic properties of a CTO with and without microchannels. Expert evaluation in the development phase will ensure a realistic haptic impression of the model. Extending the state-of-the-art, a special guide wire from the HapCath project with a diameter of 0.014 inch and an integrated force sensor at the tip can measure the intracorporal forces of the intervention. Additionally, a modified torquer with an integrated single-axis force sensor is used to meas-ure the forces executed by the cardiologist during the test procedure. The movement of the guide wire is measured by an encoder in order to assess movement-based quality criteria. A camera setup with software filtering is used to obtain an x-ray-like image of the training scenario that can be used with a human-machine-interface similar to a real operat-ing setup. Applied x-ray and contrast agent doses can be measured as well. Thus, a new training and evaluation setting for CTO training with haptic feedback will be developed to optimize training in interventional cardiology and to evalu-ate new technologies for the interventional treatment of these challenging scenarios. The setup will also help to evalu-ate whether haptic facilitates the CTO-intervention.

Title of Book: BMT 2016, Dreiländertagung
Place of Publication: Basel
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Measurement and Sensor Technology
18 Department of Electrical Engineering and Information Technology
Date Deposited: 02 Nov 2016 10:54
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