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Towards an advanced virtual ultrasound-guided renal biopsy trainer
Author(s): Samantha Horvath; Sreekanth Arikatla; Kevin Cleary; Karun Sharma; Avi Rosenberg; Andinet Enquobahrie
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Paper Abstract

Ultrasound (US)-guided renal biopsy is a critically important tool in the evaluation and management of non-malignant renal pathologies with diagnostic and prognostic significance. It requires a good biopsy technique and skill to safely and consistently obtain high yield biopsy samples for tissue analysis. This project aims to develop a virtual trainer to help clinicians to improve procedural skill competence in real-time ultrasound-guided renal biopsy. This paper presents a cost-effective, high-fidelity trainer built using low-cost hardware components and open source visualization and interactive simulation libraries: interactive medical simulation toolkit (iMSTK) and 3D Slicer. We used a physical mannequin to simulate the tactile feedback that trainees experience while scanning a real patient and to provide trainees with spatial awareness of the US scanning plane with respect to the patient’s anatomy. The ultrasound probe and biopsy needle were modeled using commonly used clinical tools and were instrumented to communicate with the simulator. 3D Slicer was used to visualize an image sliced from a pre-acquired 3-D ultrasound volume based on the location of the probe, with a realistic needle rendering. The simulation engine in iMSTK modeled the interaction between the needle and the virtual tissue to generate visual deformations on the tissue and tactile forces on the needle which are transmitted to the needle that the user holds. Initial testing has shown promising results with respect to quality of simulated images and system responsiveness. Further evaluation by clinicians is planned for the next stage.

Paper Details

Date Published: 12 March 2019
PDF: 8 pages
Proc. SPIE 10951, Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling, 109511W (12 March 2019); doi: 10.1117/12.2512871
Show Author Affiliations
Samantha Horvath, Kitware, Inc. (United States)
Sreekanth Arikatla, Kitware, Inc. (United States)
Kevin Cleary, Children's National Medical Ctr. (United States)
Karun Sharma, Children's National Medical Ctr. (United States)
Avi Rosenberg, Johns Hopkins Medicine (United States)
Andinet Enquobahrie, Kitware, Inc. (United States)


Published in SPIE Proceedings Vol. 10951:
Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling
Baowei Fei; Cristian A. Linte, Editor(s)

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