Tempolenses with variable magnification for sonic representation of medical data. Application for cardiac signals.

The purpose of this study was to develop the tools and the methodology for a systematic analysis of usefulness of adding sonic representation of data, supplementary to visualization. This paper is mainly dedicated various temporal lenses, including the newly developed lenses with variable magnification, proposed as a tool for a better perception of short events combined with a compression of irrelevant intervals. Sonification procedures are also briefly presented.

Multipolar maps in patients with postinfarction heart failure.

Purpose: The aim of this study was to assess the changes in body surface maps in patients with postinfarction heart failure (PIHF).

Materials And Methods: Body surface mapping was performed in 22 patients with PIHF and 20 age-matched healthy controls, using a 64-electrode vest. A card index was made for every patient and person of the control group, containing isopotential and isointegral maps.