A Virtual Joystick as a Novel Interaction Modality for Surgeon-Computer Interaction During Computer-Assisted Surgical Procedures

Interacting with a computer system in the operating room (OR) can be a frustrating experience for a surgeon, who currently has to verbally delegate to an assistant every computer interaction task. This indirect mode of interaction is time consuming, error prone and can lead to poor usability of OR computer systems. This thesis describes the design and evaluation of a joystick-like device that allows direct surgeon control of the computer in the OR. The device was tested extensively in comparison to a mouse and delegated dictation with seven surgeons, eleven residents, and five graduate students. The device contains no electronic parts, is easy to use, is unobtrusive, has no physical connection to the computer and makes use of an existing tool in the OR. We performed a user study to determine its effectiveness in allowing a user to perform all the tasks they would be expected to perform on an OR computer system during a computer-assisted surgery. Dictation was found to be superior to the joystick in qualitative measures, but the joystick was preferred over dictation in user satisfaction responses. The mouse outperformed both joystick and dictation, but it is not a readily accepted modality in the OR.

Simulation analysis of a network computer,

Bibliography: p. 43.

The statistical estimation of throughput and turnaround functions for a university computer system /

Vita.

GIMLI and GIML : a machine and programming language for low-cost interactive graphical systems /

"UILU-ENG 77 1708."

Comparative response times of time-sharing systems on the ARPA network /

Vita.

Time-sharing on a computer with a small memory,

"Supported in part by Atomic Energy Commission Contract AT(11-1)-1469."

Deadlock in distributed computer networks /

Originally presented as the author's thesis (M.S.), University of Illinois.

An interactive time-share system for a small computer /

"February 1, 1966."

Economies of scale in computer use : initial tests and implications for the computer utility /

"This report reproduces a thesis of the same title submitted to the Alfred P. Sloan School of Management, Massachusetts Institute of Technology, in partial fulfillment of the requirements for the degree of Doctor of Philosophy, June 1969."--p. 2.

A methodology for the selection of interactive computer services /

Includes bibliographical references (p. 39-42).

An analytic study of a shared device among independent computing systems /

Item 247.

Application of measurement criteria in the selection of interactive computer services /

"Issued April 1980."

A testbed for providing uniformity to user-computer interaction languages /

"Issued August 1980."

Considerations in the selection of security measures for automatic data processing systems /

"Contributed to the Federal Information Processing Standards Task Group 15 - Computer Systems Security" -t.p.

Producing computer-generated tailored written information for stroke patients and their carers: System development and preliminary evaluation

Purpose: The aim of this project was to design and evaluate a system that would produce tailored information for stroke patients and their carers, customised according to their informational needs, and facilitate communication between the patient and, health professional. Method: A human factors development approach was used to develop a computer system, which dynamically compiles stroke education booklets for patients and carers. Patients and carers are able to select the topics about which they wish to receive information, the amount of information they want, and the font size of the printed booklet. The system is designed so that the health professional interacts with it, thereby providing opportunities for communication between the health professional and patient/carer at a number of points in time. Results: Preliminary evaluation of the system by health professionals, patients and carers was positive. A randomised controlled trial that examines the effect of the system on patient and carer outcomes is underway. (C) 2004 Elsevier Ireland Ltd. All rights reserved.