Precordial Scanning

Precordial pain.

Radioisotope scanning of the precordial distribution of iodide in patients with myocardial infarction.

RADIOISOTOPE scanning has proved useful as a means of diagnosing pericardial effusion.1 Ten minutes after administration of human serum albumin labeled with radioiodine, the spatial distribution of the radioactivity throughout the central cardiovascular system is automatically measured and recorded photographically. The diagnosis of effusion is based on comparison of the scanning image of the c...

Quantitation of Precordial Movement

Precordial displacement records of 39 patients with mitral regurgitation have been analyzed using a new method of quantitation. Three groups of patients were studied, and the data from each group have been compared in a number of different ways to those obtained from a control group. The optimal method of discrimination is a graphic representation involving the two variables of the height of th...

Quantitation of Precordial Movement

A method has been devised for calibrating and measuring aspects of displacement records of cardiac movement. Forty-five normal subjects have been studied using this method, and a normal range has been calculated for the heights of the a wave, systolic outward movement, rapid-filling wave, and the ratio of rapid-filling wave to duration. The consistency of the results obtained and factors produc...

Precordial ST-Segment Mapping

Precordial ST-segment mapping was applied serially in the coronary care unit for the study of 46 patients with myocardial infarction (MI), using a 49-lead system. Data from the maps were compared with clinical status of patients, conventional ECGs obtained simultaneously, and serum enzyme levels. Stability of the maps over a one hour period was noted in the early phase of admission. However, a ...