Ultrasound simulators: experience with the SonoTrainer and comparative review of other training systems

Maul, Holger; Scharf, A.; Baier, P.; Wüstemann, M.; Günter, H. H.; Gebauer, Gerhard; Sohn, C

doi:10.1002/uog.1119

Cited by 109 publications

(74 citation statements)

References 25 publications

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“…This effect can be described by Lambertian scattering 1 . The intensity of the reflected signal at a point x on the interface of the media depends on the angle of incidence and can be written as…”

Section: Reflectionmentioning

confidence: 99%

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Real-Time Simulation of Medical Ultrasound from CT Images

Shams

Hartley

Navab

2008

Medical Image Computing and Computer-Assisted Intervention – MICCAI 2008

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Abstract. Medical ultrasound interpretation requires a great deal of experience. Real-time simulation of medical ultrasound provides a costeffective tool for training and easy access to a variety of cases and exercises. However, fully synthetic and realistic simulation of ultrasound is complex and extremely time-consuming. In this paper, we present a novel method for simulation of ultrasound images from 3D CT scans by breaking down the computations into a preprocessing and a run-time phase. The preprocessing phase produces detailed fixed-view 3D scattering images and the run-time phase generates view-dependent ultrasonic artifacts for a given aperture geometry and position within a volume of interest. We develop a simple acoustic model of the ultrasound for the run-time phase, which produces realistic ultrasound images in real-time when combined with the previously computed scattering image.

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Section: Reflectionmentioning

confidence: 99%

“…Real-time simulation of ultrasound can be used for training to complement a theoretical study program. A recent study in [1] reports a significant improvement in skills of subjects who received additional simulator-based training. The main advantage is easy access to a wealth of standard and rare cases collected over time.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Simulation of Medical Ultrasound from CT Images

Shams

Hartley

Navab

2008

Medical Image Computing and Computer-Assisted Intervention – MICCAI 2008

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“…Investigations have indicated the usefulness of simulators in the teaching of clinical ultrasound (1,4). These investigations have mostly been concerned with the overall learning outcome of simulator training.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of ultrasound training simulators: Method for assessing image realism

Bø

Gjerald

Brekken³

et al. 2010

Minimally Invasive Therapy & Allied Technologies

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Although ultrasound has become an important imaging modality within several medical professions, the benefit of ultrasound depends to some degree on the skills of the person operating the probe and interpreting the image. For some applications, the possibility to educate operators in a clinical setting is limited, and the use of training simulators is considered an alternative approach for learning basic skills. To ensure the quality of simulator based training, it is important to produce simulated ultrasound images that resemble true images to a sufficient degree. This article describes a method that allows corresponding true and simulated ultrasound images to be generated and displayed side by side in real time, thus facilitating an interactive evaluation of ultrasound simulators in terms of image resemblance, real-time characteristics and man-machine interaction. The proposed method could be used to study the realism of ultrasound simulators and how this realism affects quality of training, as well as being a valuable tool in the development of simulation algorithms.

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“…The classical way of simulating ultrasound images by interpolation is by slicing a 3D volume [8] and applying techniques such as voxel nearest-neighbor [9]. This approach cannot deal with view-dependent features of needle images.…”

Section: Introductionmentioning

confidence: 99%

Real Time Ultrasound Needle Image Simulation Using Multi-dimensional Interpolation

Zhu

Salcudean

2010

Medical Image Computing and Computer-Assisted Intervention – MICCAI 2010

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Abstract. In this paper, we propose an interpolation-based method for simulating needle images in B-mode ultrasound. We parametrize the needle image as a function of needle position and orientation. We collect needle images under various spatial configurations in a water-tank using a guidance robot. Then we use multi-dimensional tensor-product interpolation to simulate images of needles with arbitrary poses and positions using the collected images. Interpolated needle images are superimposed on top of phantom image backgrounds. The similarity between the simulated and the real images is measured using a correlation metric. A comparison with in-vivo images is also performed. The simulation procedure is demonstrated using transverse needle images and extended to sagittal needle images and brachytherapy seed images. The proposed method could be used in clinical procedure training simulators.

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Ultrasound simulators: experience with the SonoTrainer and comparative review of other training systems

Abstract: Ultrasound has become indispensable in prenatal diagnosis. Ultrasound training, however, still

Cited by 109 publications

References 25 publications

Real-Time Simulation of Medical Ultrasound from CT Images

Real-Time Simulation of Medical Ultrasound from CT Images

Efficiency of ultrasound training simulators: Method for assessing image realism

Real Time Ultrasound Needle Image Simulation Using Multi-dimensional Interpolation

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