An augmented reality delivery simulator for medical training

Abstract. This paper presents the extension of a birth simulator for medical training with an augmented reality system. The system presents an add-on of the user interface for our previous work on a mixed reality delivery simulator system [1]. This simulat

AMI-ARCS'04

An Augmented Reality Delivery Simulator for

Medical Training

Tobias Sielhorst1,Tobias Obst2,

Rainer Burgkart2,Robert Riener3,and Nassir Navab1

1Lehrstuhl f¨u r Informatikanwendungen in der Medizin,Institut f¨u r Informatik,TU M¨u nchen,Germany Tobias.Sielhorst@cs.tum.edu 2Klinik f¨u r Orthop¨a die und Sportorthop¨a die r.d.Isar,TU M¨u nchen,Munich,

Germany Tobias.Obst@lrz.tu-muenchen.de

3Automatic Control Lab,ETH,and Spinal Cord Injury Center,University Hospital Balgrist,Zurich,Switzerland riener@control.ee.ethz.ch

Abstract.This paper presents the extension of a birth simulator for

medical training with an augmented reality system.The system presents

an add-on of the user interface for our previous work on a mixed reality

delivery simulator system[1].This simulation system comprised direct

haptic and auditory feedback,and provided important physiological data

including values of blood pressure,heart rates,pain and oxygen supply,

necessary for training physicians.Major drawback of the system was

the indirect viewing of both the virtual models and thefinal delivery

process.The current paper extends the existing system by bringing in

the in-situ visualization.This plays an important role in increasing the

efficiency of the training,since the physician now concentrates on the

vaginal delivery rather than the remote computer screen.In addition,

forceps are modeled and an external optical tracking system is integrated

in order to provide visual feedback while training with the simulator for

complicated procedures such as forceps delivery.

1Introduction

1.1Problem statement

There is a trend from vaginal delivery to cesarean sections in German-speaking countries[2].Reasons for this change are earlier decisions for cesarean sections and sections on demand.This can be explained with improved techniques as well as new medication.Still sections have a higher risk of complications which cannot be neglected.For an emergency section the risk of complications is12 times higher compared to a vaginal delivery[3],[4].In a scheduled cesarean section the risk of complications is still1.5to2times higher.

Despite several technical improvements the perinatal mortality is nearly con-stant since1980.A reason might be found in the traditional way of medical education where practice follows theory seamlessly.The delivery simulator is supposed tofill that gap.Furthermore it gives the chance to experienced doctors

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