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Biomedical subjects

A Ezekiel

Publications and source records attributed to A Ezekiel.

2 recordsLinked to original sources

Care of chronic neurotic out-patients by community psychiatric nurses. A long-term follow-up study.

Ninety-nine neurotic patients from a controlled trial of CPN v. psychiatric out-patient aftercare were followed up seven years later. Of the 92 survivors, 76 were successfully interviewed. Few differences were found between the groups. Chronic mild symptoms and moderate social disability persisted, and tended to worsen a little. Treatment patterns persisted for one to two years beyond the original study; the CPN group had more CPN contacts, fewer psychiatric out-patient contacts and less psychiatric care. Thereafter, more out-patients were discharged from psychiatric care and care patterns for the two groups became similar. Out-patients attended more non-psychiatric out-patient clinics than the CPN group, but it is possible that this reflected pre-existing differences. About a third of patients remained in contact with the psychiatric service during follow-up.

Activities of Daily Living

Digital processing in cardiac imaging.

In recent years, imaging modalities have realized the potential for digitizing images of the heart. These modalities include nuclear cardiology, echocardiography, digital subtraction angiography, computed tomography, positron emission tomography, and magnetic resonance imaging. Once the cardiac images have been digitized by the computer and formatted in a pixel array of data, the computer can perform mathematical operations on the input (original) images for the purpose of providing improved output (processed) images. The computer can also analyze the original (or processed) images for the purpose of extracting global, regional, or temporal measurements of cardiac perfusion and function. These processes include the restoration, enhancement, analysis, manipulation, and coding of images. These basic processes are implemented by a combination of image processing operations. These operations include pixel point processing, pixel group processing, frame processing, geometric processing, and information extraction. This article describes how these operations are used to perform processes, and how these processes are applied to cardiac imaging, currently and in the future.

Algorithms