A training system for ultrasound-guided needle insertion procedures.
Needle placement into a patient body under guidance of ultrasound is a frequently performed procedure in clinical practice. Safe and successful performance of such procedure requires a high level of spatial reasoning and hand-eye co-ordination skills, which must be developed through intensive practice. In this paper we present a training system designed to improve the skills of interventional radiology trainees in ultrasound-guided needle placement procedures. Key issues involved in the system include surface and volumetric registration, solid texture modelling, spatial calibration, and real-time synthesis and rendering of ultrasound images. Moreover, soft tissue deformation caused by the needle movement and needle cutting is realised using a mass-spring-model approach. These have led to a realistic ultrasound simulation system, which has been shown to be a useful tool for the training of needle insertion procedures. Preliminary results of a construct evaluation study indicate the effectiveness and usefulness of the developed training system.
School of Computing, University of Leeds, Leeds, UK.
Yanong
Y
Zhu
Derek
D
Magee
Rish
R
Ratnalingam
David
D
Kessel
D003198:Computer Simulation; D003194:Computer-Assisted Instruction / Q000379:methods*; D003238:Connective Tissue / Q000502:physiology / Q000601:surgery*; D006801:Humans; D008954:Models, Biological; D009339:Needles; D019919:Prosthesis Implantation / Q000193:education*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D018084:Ultrasonography, Interventional / Q000379:methods*; D014584:User-Computer Interface