Needle-tissue interaction modeling using ultrasound-based motion estimation: Phantom study
نویسندگان
چکیده
منابع مشابه
Modeling of Needle-Tissue Interaction Using Ultrasound-Based Motion Estimation
A needle-tissue interaction model is an essential part of every needle insertion simulator. In this paper, a new experimental method for the modeling of needle-tissue interaction is presented. The method consists of measuring needle and tissue displacements with ultrasound, measuring needle base forces, and using a deformation simulation model to identify the parameters of a needle-tissue inter...
متن کاملA training phantom for ultrasound-guided needle insertion and suturing.
PURPOSE During gynecologic brachytherapy (BT), suturing and image-guided needle insertions are highly skill-dependent tasks. Medical residents often have to practice these techniques in the operating room; this is sub-optimal for many reasons. We present a fast and low-cost method of building realistic and disposable gynecologic phantoms, which can be used to train physicians new to gynecologic...
متن کاملExperimental study of needle-tissue interaction forces: effect of needle geometries, insertion methods and tissue characteristics.
A thorough understanding of needle-tissue interaction mechanics is necessary to optimize needle design, achieve robotically needle steering, and establish surgical simulation system. It is obvious that the interaction is influenced by numerous variable parameters, which are divided into three categories: needle geometries, insertion methods, and tissue characteristics. A series of experiments a...
متن کاملUsing an abdominal phantom to teach urology residents ultrasound-guided percutaneous needle placement
INTRODUCTION To assess the effect of a hands-on ultrasound training session to teach urologic trainees ultrasound-guided percutaneous needle placement. MATERIALS AND METHODS University of California, San Francisco (UCSF) urology residentes completed a time trial, placing a needle into a phantom model target under ultrasound guidance. Participants were randomized into three educational exposur...
متن کاملEvaluation of ultrasound Tissue Velocity Imaging: a phantom study of velocity estimation in skeletal muscle low-level contractions
BACKGROUND Tissue Velocity Imaging (TVI) is an ultrasound based technique used for quantitative analysis of the cardiac function and has earlier been evaluated according to myocardial velocities. Recent years several studies have reported applying TVI in the analysis of skeletal muscles. Skeletal tissue velocities can be very low. In particular, when performing isometric contractions or contrac...
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ژورنال
عنوان ژورنال: Computer Aided Surgery
سال: 2008
ISSN: 1092-9088,1097-0150
DOI: 10.3109/10929080802383173