Results: 4

Diagnóstico de infección por Helicobacter pylori mediante test de aliento con urea C-14 en población ecuatoriana
Diagnosis of Helicobacter pylori infection by C-14 urea breath test in Ecuadorian population

siendo el test de aliento con urea carbono-14 (C-14) uno de los métodos de diagnóstico no invasivos; sin embar-go, no ha sido comprobada su utilidad en la población ecuatoriana.Objetivo: Evaluar la sensibilidad y especificidad del test de aliento con urea C-14 para predecir la infección por HP en la ...

Topography of 11C-Pittsburgh compound B uptake in Alzheimer's disease: a voxel-based investigation of cortical and white matter regions

Objective: To compare results of positron emission tomography (PET) with carbon-11-labeled Pittsburgh compound B (11C-PIB) obtained with cerebellar or global brain uptake for voxel intensity normalization, describe the cortical sites with highest tracer uptake in subjects with mild Alzheimer's disease (A...

Dynamic 11C-Choline PET / CT for the primary diagnosis of prostate cancer

Int. braz. j. urol; 44 (5), 2018
ABSTRACT Objectives: To test the ability of dynamic 11C-PET / CT to discriminate cancerous tissue from background tissue in patients with localized prostate cancer. Materials and Methods: Twenty-four consecutive patients with prostate cancer were prospectively evaluated with dynamic 11C-choline PET / C...

Accuracy of the 14C-urea breath test for the diagnosis of Helicobacter pylori

Säo Paulo med. j; 120 (3), 2002
CONTEXT: The development of simple, accurate and low-expense techniques for detection of Helicobacter pylori infection has great relevance. OBJECTIVE: To determine the accuracy of a rapid 14C-urea breath test (UBT) employing a very simple device for breathed air collection. DESIGN: Prospective study. SET...