Biomedical subjects
Publications and source records attributed to T Poss.
The authors describe a concept of converting microsurgical instruments into endoscopes and demonstrate prototype devices. These instruments combine the benefits of microsurgery (multiple instruments, tactile feedback, bimanual manipulation, magnification) with those of endoscopy (minimally invasiveness, indirect line of vision).
The volumes of the four recti muscles and the orbital fat was measured by CT in 40 normal persons and in 60 patients with clinically confirmed Graves' disease. Compared with normal persons, 42 patients (70%) showed an increase in muscle volume and 28 patients (46.7%) an increase in the amount of fat. In nine patients (15%) muscle volume was normal, but the fat was increased. By using volumetric measurements, the amount of fat in the orbits in patients with Graves' disease could be determined.