[en] Fifty-four sessions were held on various aspects of engineering in medicine and biology. Approximately ten papers were presented in each session and summaries of the papers are included. A paper on nuclear fueled circulatory support systems describes ²³⁸Pu fueled blood cooled heat exchangers and implants using ²⁴¹Am, ⁹Be, and ⁹⁰Sr in dogs. One dog died as a result of an extensive pulmonary neoplasm. Two sessions were devoted to cardiac pacemakers; topics included were data management systems, safety factors, implantation status of the NU-5 nuclear pacemaker, a rechargeable cardiac pacemaker system, and longevity of implantable pulse generators. A session on corporeal imaging included papers on computer processing of chest x-ray pictures, fluoroscopic image enhancement using a storage vidicon, ACTA (automatic computerized transverse axial tomographic)--the whole body scanner, and reconstruction of the image from the ACTA whole body x-ray scanner. (U.S.)