title: [Determination of the count rate for quality control of combined lung ventilation and perfusion scintigraphy: case report].
abstract: We present the case of a 43-year-old male patient who suffered from a massive pulmonary embolism, induced by a peritoneovenous shunt of the Denver type. Calculation of the count rates of the ventilation and perfusion scintigraphy respectively showed a too low ventilation/perfusion ratio. After reinjection of additional 99mTc-MAA the second perfusion study showed further mismatch areals. Count rate ratio determination is essential as a clinical quality control.
authors.affiliation: Klinik für Nuklearmedizin, Rheinische Friedrich-Wilhelms-Universität zu Bonn, Deutschland.
authors.forename: T
authors.initials: T
authors.lastname: Bultmann
authors.forename: J
authors.initials: J
authors.lastname: Heller
authors.forename: C
authors.initials: C
authors.lastname: Scheurlen
authors.forename: F
authors.initials: F
authors.lastname: Grünwald
authors.forename: T
authors.initials: T
authors.lastname: Sauerbruch
authors.forename: H J
authors.initials: HJ
authors.lastname: Biersack
mesh_terms: D000328:Adult; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D008297:Male; D010536:Peritoneovenous Shunt / Q000009:adverse effects; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D011786:Quality Control; D011877:Radionuclide Imaging / Q000379:methods / Q000592:standards; D013668:Technetium Tc 99m Aggregated Albumin; D014692:Ventilation-Perfusion Ratio
chemical_list: D013668:Technetium Tc 99m Aggregated Albumin