Introduction: QTVR is a movie format, developed by Apple, that enables users to work interactively with 2D and 3D objects in a variety of ways that enhance visualization as compared to still images or linear movie files. This standard has been available for some years but the potentials of its use in medical education has not yet been fully exploited.
Methods: Like linear quick time movies, QTVR movies can be readily viewed with an Internet browser (Netscape or Internet Explorer versions 3 or higher) when quick time viewer (available free from Apple) has been installed. Thus the format is well suited for integration into educational web pages. QTVR movies are non-linear movie files that can be manoeuvred by users to:
Each frame in the QTVR movie may itself be a movie. QTVR movies are created with the program QTVR authoring studio on Macintosh computers but resulting files are cross-platform compatible and can be distributed on the Internet or on a CD.
Results: The versatility of the tool enables a large variety of different applications to be made (see:http://www.intermed.dk/qtvr for examples and links to other QTVR resources):
In one example we have placed a sequence of serial MR movies each representing the cardiac cycle. When this movie is moved using the mouse, another plane of the heart is shown, revealing a very dynamic representation of the entire heart.
Discussion: We plan to further exploit this tool and expect it to be very effective in enhancing interactive learning in topics such as anatomy, cell biology, histology, radiology and cardiology.
Edited by G Eysenbach; This is a non–peer-reviewed article. published 19.09.99Copyright
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