Biomedical subjects
Publications and source records attributed to D L Maltz.
Blue Cross and Blue Shield of Massachusetts acquired Bay State Health Care after the HMO's tumultuous downturn. The case study described herein provides a useful lesson in the moves that must be made, particularly in an era of health care consolidation and intensive competition, to maintain health plan stability and reinforce its position in the marketplace.
In 105 patients defection and quantitation of left to right shunts was performed using quantitative radionuclide angiocardiography. The radionuclide angiocardiograms were acquired and analyzed by a gamma camera interfaced to a digital computer system. Pulmonary to systemic flow (Qp/As) ratios were calculated by analysis of pulmonary time-activity histograms using a gamma variate model. All patients were studied with cardiac catheterization, left ventricular angiocardiography and radionuclide angiocardiography. The radionuclide method allowed precise detection and quantitation of left to right shunts with a Qp/Qs ratio of 1.2 to 3.0. There was good agreement between the Ap/As ratio calculated by oximetry at cardiac catheterization and radionuclide angiocardiography (r = 0.94). The information gathered with this nontraumatic method appears sufficiently reliable to be used in the management of patients.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.