title: [Clinical interpretation of retinal circulatory measurements. III. Blood flow velocity and vessel diameter in normal persons and in patients with venous occlusive diseases].
abstract: Based on results from measurements of arterial blood velocity, arterial and venous diameters of major segmental retinal vessels in normal persons and in patients with venous occlusive diseases and in continuation of the two preceding parts of this series of articles, further possibilities for the differential diagnosis of measurements of retinal microcirculation magnitudes are discussed. Whereas the measurement of blood velocity is an important criterion for the assessment of the stasis conditions and the arterial involvement in an occlusive disease, the diameters of the vessels offer essential suggestions to local regulative processes. In this connection, a dependence on pH of the contraction state of the smooth vascular musculature detected in porcine coronary arteries is presented. By its transmission to the arterial retinal vessels, it is possible to unequivocally clarify the local regulative and pathological behavior of arterial retinal vessels in terms of flow physiology.
mesh_terms: D001783:Blood Flow Velocity; D006801:Humans; D008833:Microcirculation; D012016:Reference Values; D012164:Retinal Diseases / Q000175:diagnosis*; D012170:Retinal Vein Occlusion / Q000175:diagnosis*; D012171:Retinal Vessels / Q000473:pathology*; D012212:Rheology; D014655:Vascular Resistance
vernacular_title: Klinische Interpretation retinaler Durchblutungsmessungen. III. Blutgeschwindigkeit und Gefässdurchmesser bei Normalpersonen und bei Patienten mit venösen Verschlusskrankheiten.