Steinbach, P. and Hofstaedter, Ferdinand and Nicolai, H. and Roessler, W. and Wieland, W. (1993) Determination of the energy-dependent extent of vascular damage caused by high-energy shock waves in an umbilical cord model. Urological research 21 (4), pp. 279-282.
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To determine the spatial extent of shock-wave-induced vascular damage human umbilical cords were exposed to electromagnetically generated, focused ultrasound waves of different energy densities. During treatment macroscopically visible hematoma and superficial holes appeared. Following exposure specimens were fixed and examined histologically. In addition to vessel wall necrosis and rupture, complete detachment of endothelial cells in defined regions was observed. A correlation of the extent of the damage with the energy density distribution revealed that a local energy density of 0.3 mJ/mm2 is the lower threshold for the occurrence of severe vascular damage.
|Institutions:||Medicine > Lehrstuhl für Pathologie|
|Subjects:||600 Technology > 610 Medical sciences Medicine|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||14 Apr 2010 08:08|
|Last Modified:||14 Apr 2010 08:08|