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Biomedical subjects

R DiPaola

Publications and source records attributed to R DiPaola.

2 recordsLinked to original sources

Pulmonary edema during cardiac catheterization successfully treated with bolus administration of nicardipine.

This report describes a 62-year-old patient with ischemic dilated cardiomyopathy who presented pulmonary edema during cardiac catheterization. Bolus administration of nicardipine (5 mg in 5 min) into the pulmonary artery determined prompt recovery from the crisis and optimal hemodynamic conditions for completion of the catheterization. The action of the drug was mediated by the rapid reduction of the left ventricular preload and afterload. We believe that bolus administration of nicardipine is useful in treating episodes of acute left ventricular insufficiency.

Cardiac Catheterization

Microcomputer system for ion microscopy digital imaging and processing.

Analytical ion microscopy is a powerful tool for biological tissue analysis as it allows direct chemical distribution imaging, even at low element concentrations. A microcomputer based digital imaging system achieving acquisition at low light level is presented. It includes a high sensitivity video camera connected to a specialized image processor subsystem. Acquired images consist of 512 x 512 pixels with 8 bits accuracy. Real-time image processing software has been implemented so that image processing may be performed on-line. Image processing software allows off-line image manipulation and correlation for biological interpretation of elemental mapping images. System capabilities are illustrated by a study of stable and radio iodine mapping in rat thyroid tissue.

Algorithms