title: [Radionuclide angiography (RNA) with 99mTc-DTPA to follow palliative embolization of renal cell carcinoma (author's transl)].
abstract: In 14 patients with renal cell carcinoma, not to be treated by nephrectomy, radionuclide angiography with 99mTc-DTPA (RNA) was employed before and after palliative tumor embolization. If RNA revealed remaining perfusion of the tumor, functional scintigraphy with 131J-hippurate was performed to detect and quantify residual function. Up to 16 months after embolization, 7 patients (50%) revealed neither residual perfusion nor function. In 5 patients (36%) remaining perfusion without functioning renal parenchyma and in 2 patients (14%) residual perfusion with additional function were found. In 4 cases (28%) a nuclear "tumor-halo" was imaged, describing a stripe of high radioactivity caused by capsular arteries surrounding the avascular tumor. RNA has proven to be a suitable non-invasive procedure for to blow-up of embolized renal cell carcinomas.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000628:therapy*; D000368:Aged; D004621:Embolization, Therapeutic; D006801:Humans; D007668:Kidney / Q000098:blood supply; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010166:Palliative Care; D004369:Pentetic Acid; D011877:Radionuclide Imaging; D013667:Technetium; D016284:Technetium Tc 99m Pentetate
chemical_list: D013667:Technetium; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate
vernacular_title: Erfolgsbeurteilung der palliativen transfemoralen Nierentumorembolisation durch die Radionuklidangiographie (RNA) mit 99mTc-DTPA.