A dialup wide-bandwidth digital teleradiology system is discussed. A laser film digitizer and a gray scale display system are used at Irwin and Munson Army Community Hospitals to digitize radiographic films and display digital images. A laser film printer at the University of Kansas Medical Center generates a film hardcopy of the transmitted digital data, and an interactive gray scale display is used to review the digital image data. The communication system consists of dialup switched multiple 56000 b/s digital channels, transmitting digital image data in parallel. Conventional radiographic films, multiformat camera films, and laser printed films from multimodality imaging systems have been successfully digitized, transmitted, and laser film recorded or gray scale displayed. It was found that the system provided clinically acceptable image quality reproductions.>

A prototype Computed Tomography Breast Scanner (CT/M) built by General Electric Medical Systems Divi sion was installed at the University of Kansas Medical Center in October 1976. Over 1,500 patients have now been examined by this CT/M Scanner. During this period of clinical evaluation it was determined that clinical effectiveness could be enhanced by correlating iodine concentration with CT number changes. The comparison of tissue localization of iodinated contrast material is achieved by performing two sets of similar CT/M scans, one pre-contrast study and one post-contrast study. The percent iodinated uptake, as reflected by comparing changes in CT/M numbers, was found to vary for breast lesions. An interactive graphics software system was designed and evaluated as a computer-aided system for detecting distinguishable changes in the present iodinated breast tissue uptake. Multiple CT/M images may be displayed simultaneously. Interactive CTIM image processing includes a Region of Interest selection. Image processing includes estimates of first and second order statistics from selected regions of interest in comparing pre and post contrast CT/M scans.

The intent of this paper is to describe an implementation of a curriculum computable with the recently established ACM Community and Junior College Career in Computer Programming Guidelines (the “Little” Report). The proposed curriculum consists of a two-year associate degree program in Computer and Information Studies containing four options, one of which is a career option for computer programmers. The programs are supported by a set of twenty-five one, two, and three credit courses. Those courses will be discussed in this report.

Frequently, as in missile control systems, linear differential equations are simultaneous with nonlinear but slower acting differential equations. The numerical solution of this type of system on a digital computer is significantly speeded up by approximating the forcing functions with polynomials, solving the linear equations exactly, and numerically integrating the nonlinear equations with Milne integration. Automatic interval adjustment is possible by comparing errors in the nonlinear integration. The interval selected is related to the shortest time constant of the nonlinear equations rather than the shortest of all the equations. With this system, both detailed transient response and steady state conditions are revealed with a minimum of machine time.