ABSTRACT
BACKGROUND/AIMS: Constipation is the most common digestive complaint. Radionuclide colon transit study is a useful tool for assessing the motility of the colon. In this study, we evaluate patients with idiopathic constipation using the radionuclide colon transit study. METHODOLOGY: We studied radionuclide colon transit in 23 patients with idiopathic constipation. Thirty healthy volunteers were included as a control. RESULTS: Overall, patients with idiopathic constipation usually had slow or normal colon transit. CONCLUSIONS: Our study suggested that the radionuclide colon transit study may be clinically useful in evaluating and assessing the efficacy of therapy in patients with idiopathic constipation.
Subject(s)
Constipation/diagnostic imaging , Gastrointestinal Transit , Radiopharmaceuticals , Technetium Tc 99m Pentetate , Adult , Aged , Female , Humans , Male , Middle Aged , Radionuclide ImagingABSTRACT
BACKGROUND/AIMS: We compared ultrasound and Xenon-133 hepatic retention ratio to evaluate the accuracy of ultrasound in diagnosing fatty liver. METHODOLOGY: One hundred and forty-six patients with suspected fatty liver were included. All patients underwent an ultrasound study followed by a determination of the Xenon-133 hepatic retention. RESULTS: Using the Xenon-133 hepatic retention ratio as the diagnostic standard, the overall accuracy of ultrasound in detecting fatty liver was 57.5%, with 100% sensitivity and 6.0% specificity. CONCLUSIONS: Ultrasound can be used as a first-line screening imaging modality for fatty liver. If the result of ultrasound is equivocal, then Xenon-133 hepatic retention determination should be performed for the diagnosis and management of fatty liver.
