PURPOSE To evaluate how often delayed images, obtained during neurovascular CTA, provide unique information relative to early phase imaging alone. MATERIALS AND METHODS Informed consent was waived by the institutional review body for this study. Neurovascular CTAs from January through June 2009 were searched to identify those with delayed phase imaging. Reports were reviewed to identify cases...

A prospective clinical study was performed in 32 patients with multiple sclerosis (MS) to evaluate the sensitivity of lesion detection and accuracy of lesion localization by neurologic examination, delayed enhanced computed tomography (CT) with a double dose of contrast material, and proton magnetic resonance (MR) imaging. After neurologic examination patients were classified by probability of ...

Nuclear medicine imaging is routinely used for evaluation of perfusion and function of the transplanted kidneys. At present, the radiopharmaceutical of choice for this study in our center is Tc 99m-Ec. Complications of the kidney graft are demonstrable in the early and delayed images. One of these complications is vesicoureteral reflux to the graft or to the native kidneys. We present a 27 year...

tc-99m pertechnetate scintigraphy is the modality of choice for diagnosis of meckel's diverticulum. interpretation of meckel's scan identifies a focal area of radiopharmaceutical uptake in the anterior abdomen similar to normal gastric mucosa. the activity must be of the same pattern and intensity as gastric uptake. we present a 13-year-old patient with gastrointestinal bleeding and a...

Compton scatter from radiotracer in structures close to the heart may partially or completely mask myocardial perfusion defects on SPECT imaging. Previous reports have discussed benefits of additional delayed imaging. We present a case in which additional delayed stress imaging reduced Compton scatter and unveiled clinically significant, stress-induced ischemia.

Gastrointestinal duplications are rare congenital malformations and they may vary greatly in presentation, size, location and symptoms. The presence of ectopic gastric mucosa (EGM) in them is not common and they are difficult to diagnose prior to surgery. We present the case of a child with long intestinal duplication with ectopic gastric mucosa who presented with just severe anaemia and delaye...

nuclear medicine imaging is routinely used for evaluation of perfusion and function of the transplanted kidneys. at present, the radiopharmaceutical of choice for this study in our center is tc 99m-ec. complications of the kidney graft are demonstrable in the early and delayed images. one of these complications is vesicoureteral reflux to the graft or to the native kidneys. we present a 27 year...

tc-99m pertechnetate scintigraphy is the modality of choice for diagnosis of meckel's diverticulum. interpretation of meckel's scan identifies a focal area of radiopharmaceutical uptake in the anterior abdomen similar to normal gastric mucosa. the activity must be of the same pattern and intensity as gastric uptake. we present a 13-year-old patient with gastrointestinal bleeding and anemia. tc-...