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The ocular changes due to chronic ischaemia are described in seven patients, aged between 59 and 77 years, with severe carotid artery disease. Doppler sonography was used to confirm the presence of high-grade arterial stenosis or occlusion in all the patients. The treatment of chronic ocular ischaemia is discussed, including the role of carotid bypass(More)
Normal prostate glands from 6 men less than 30 years old and enucleated tissue of benign prostatic hyperplasia were analyzed by stereological methods. Studies on the relative volumetric amount of fibromuscular (stromal) and glandular areas of the gland reveal no statistically significant difference between the inner and outer parts of the normal prostate(More)
The diameter of 261 middle cerebral and 225 anterior cerebral arteries was measured on half axial antero-posterior (ap) view, and the diameter of 217 internal carotid arteries on side view angiograms. Mean diameter was significantly larger by 9.3%, 8.8% and 9.7% respectively in males than in females. In the females the vessels of the left hemisphere were(More)
Using a special probe holder, cross-sectional area and time-averaged mean spatial velocity of the internal jugular vein were measured by means of a duplex scanner and multiplied to calculate volume flow. In a cohort of 100 subjects ages 21 to 70 years, average right plus left flow was 740 +/- 209 mL/min. Flow was 8.7% lower in females than in males.(More)
High intensity transcranial Doppler signals (HITS), assumed to be caused by microemboli, have been reported to occur in many patients with mechanical heart valve prostheses. The aim of our study was to quantify these phenomena and to find possible differences. Furthermore, parameters which might influence the prevalence of HITS were investigated. Monitoring(More)