Clinical nuclear medicine
-
Clinical nuclear medicine · Feb 2002
Inaccuracy of Tl-201 brain SPECT in distinguishing cerebral infections from lymphoma in patients with AIDS.
Studies have suggested using Tl-201 brain SPECT to differentiate lymphoma from infectious processes and to determine the timing for biopsy or empirical therapy for patients with AIDS-related brain lesions. This study prospectively investigated the utility of Tl-201 SPECT in distinguishing central nervous system lymphoma from non-neoplastic disease in patients with AIDS. ⋯ Tl-201 brain SPECT appears unreliable for differentiating primary lymphoma from nonmalignant brain lesions in patients with AIDS. Early brain biopsy is necessary to establish a definitive diagnosis when appropriate.
-
Clinical nuclear medicine · Dec 2001
Comparative StudyComparison of Tc-99m methylene diphosphonate, Tc-99m human immune globulin, and Tc-99m-labeled white blood cell scintigraphy in the diabetic foot.
The aims of this prospective study were to evaluate the contribution of Tc-99m methylene diphosphonate (MDP), Tc-99m human immune globulin (HIG), and Tc-99m white blood cell (WBC) to the diagnosis of osteomyelitis in the diabetic foot and to evaluate the surgical or medical therapy with Tc-99m HIG and Tc-99m WBC scans. ⋯ These results show that four-phase bone scintigraphy with early Tc-99m WBC scanning is preferred for detecting osteomyelitis of the diabetic foot. To evaluate the response to therapy, Tc-99m WBC scans are the preferred method, but if this is not available, Tc-99m HIG scanning can be used.
-
Clinical nuclear medicine · Mar 2001
Case ReportsAsymptomatic large main pulmonary artery thromboembolism with a low-probability ventilation-perfusion lung scan.
The incidence of the interpretation of low-probability lung scans in asymptomatic patients with large central pulmonary embolisms and the prognostic implication of the ventilation-perfusion scan appearance in this clinical setting is not documented.