Cardiac phase: amplitude analysis using macro programming.

K W Logan; K A Hickey

doi:10.1118/1.595043

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PubMed · 7322088

Cardiac phase: amplitude analysis using macro programming.

K W Logan·K A Hickey

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Abstract

The analysis of EKG gated radionuclide cardiac imaging data with Fourier amplitude and phase images is becoming a valuable clinical technique, demonstrating location, size, and severity of regional ventricular abnormalities. Not all commercially available nuclear medicine computer systems offer software for phase and amplitude analysis; however, many systems do have the capability of linear image arithmetic using simple macro commands which can easily by sequenced into stored macro-strings or programs. Using simple but accurate series approximations for the Fourier operations, macro programs have been written for a Digital Equipment Corporation Gamma-11 system to obtain phase and amplitude images from routine gated cardiac studies. In addition, dynamic cine-mode presentation of the onset of mechanical systole is generated from the phase data, using only a second set of macro programs. This approach is easily adapted to different data acquisition protocols, and can be used on any system with macro commands for image arithmetic.

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Computers Electrocardiography Fourier Analysis Heart Ventricles Hemodynamics Humans Myocardial Contraction Radionuclide Imaging Journal Article

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K W Logan, K A Hickey. Cardiac phase: amplitude analysis using macro programming.. https://doi.org/10.1118/1.595043

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