BACKGROUND
Internet technologies can create advanced and rich web-based applications that allow radiologists to access easily to the teleradiology system and remotely view medical images. However, each technology has its own drawbacks. Thus, it is difficult to balance the advantages and disadvantages of these Internet technologies and identify an optimum solution for the development of medical imaging applications.
OBJECTIVE
This study aimed to compare different Internet technologies for remote viewings of radiological images and analyze their advantages and disadvantages.
METHODS
Three main Internet technologies, i.e. Oracle Java, Adobe Flash, and HTML5, were used to respectively develop a comprehensive web-based medical imaging application. This application connects to a medical image server and can provides several required functions for radiological interpretation, e.g. navigation, magnification, windowing, and fly-through. Java-, Flash-, and HTML5-based medical imaging applications were tested on different operating systems over a local area network and a wide area network. Three computed tomography colonography datasets and two ordinary laptops were used in the experiment.
RESULTS
The experimental results demonstrate that Java-, Flash-, and HTML5-based applications have the ability to provide real-time performances for all the provided two-dimensional tools. However, the three-dimensional (3D) performances of the three applications are different. The Java-based application needs the longest time for 3D rendering and the Flash-based application has the lowest frame rate for fly-through. Among these applications, the HTML5-based application is able to provide the fastest 3D rendering and the highest speed for fly-through without platform dependence.
CONCLUSIONS
Although HTML5 can evoke an excellent performance, it currently suffers from the browser support issue that may lead to inconsistent user experiences. In this case, Adobe Flash is good alternative technology. Both Adobe Flash and HTML5 have their individual strengths in the development of remote access medical imaging applications.