Improving mouse pointing for radiology tasks

Yan Tan; Geoffrey Tien; Bruce Forster; M. Stella Atkins

doi:10.1117/12.812278

12 March 2009 Improving mouse pointing for radiology tasks

Yan Tan, Geoffrey Tien, Bruce Forster, M. Stella Atkins

Proceedings Volume 7263, Medical Imaging 2009: Image Perception, Observer Performance, and Technology Assessment; 72631I (2009) https://doi.org/10.1117/12.812278
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

Radiologists make their main analysis and diagnosis based on careful observation of medical images, although there are all kinds of automatic methods under development. Radiologists typically use a scroll mouse to click on an image when they find something interesting, and they also use the mouse to navigate through the image slices in volumetric scans. Thus they perform many thousands of mouse clicks every day, causing wrist fatigue. This paper presents a method of improving the mouse pointing performance by reducing the time taken to move the mouse to a target. We use a dynamic Control-to-Display (C-D) ratio of the mouse, by adjusting the C-D ratio according to the current distance to the target. In theory this reduces the difficulty of the target selection, and also reduces the movement time. The result of preliminary study demonstrates that the speed of pointing can be improved under certain conditions, particularly for small targets and for long distances to move. In addition, all participants claim that this mouse speed change reduces the difficulty of selecting a small target.

Citation Download Citation

Yan Tan, Geoffrey Tien, Bruce Forster, and M. Stella Atkins "Improving mouse pointing for radiology tasks", Proc. SPIE 7263, Medical Imaging 2009: Image Perception, Observer Performance, and Technology Assessment, 72631I (12 March 2009); https://doi.org/10.1117/12.812278

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