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      Hemodynamic Changes after Ruthenium Irradiation of Hippel's Angiomatosis

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          Abstract

          The authors report a case of Hippel’s angiomatosis successfully treated with contact Β irradiation. The area of the multiplex retinal angioma and the accompanying retinal detachment was irradiated with a <sup>106</sup>Ru/<sup>106</sup>Rh radioactive applicator. Hemodynamic changes due to irradiation were followed up in the ipsilateral ophthalmic artery with transcranial Doppler sonography. Scarring was also demonstrated by fluorescein angiography and A- and B-scan ultrasonography. Irradiation caused the narrowing and later the occlusion of the precapillaries and capillaries (i.e. the resistance vessels) and that of the shunts inside the angioma; consequently, vascular resistance increased. Transcranial Doppler sonographic recordings showed a decrease in blood flow velocity as compared to pathologically increased blood flow velocity in angiomas, and a gradual increase in vascular resistance which was lower before treatment.

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          Author and article information

          Journal
          OPH
          Ophthalmologica
          10.1159/issn.0030-3755
          Ophthalmologica
          S. Karger AG
          0030-3755
          1423-0267
          1990
          1990
          31 March 2010
          : 200
          : 3
          : 128-132
          Affiliations
          aDepartments of Ophthalmology and bNeurosurgery, University Medical School of Debrecen, Hungary
          Article
          310093 Ophthalmologica 1990;200:128–132
          10.1159/000310093
          2189085
          © 1990 S. Karger AG, Basel

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          Page count
          Pages: 5
          Categories
          Original Paper

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