Differential renal function assessment using 99mTc-DTPA was carried out in 12 children aged between 3 weeks and 11 years who had undergone surgical procedures which allowed separate access to the urine output from each kidney. The results correlated well with those obtained by measuring individual kidney creatinine clearances. The best result was obtained using the technique of deconvolution an...

We applied a renal blood flow (RBF) quantification technique to pediatric data, which depends minimally on bolus shape, uses a conventional radiopharmaceutical 99mTc-DTPA, and generates a value for RBF as a percentage of cardiac output (RBF/CO). Mean RBF was 16.9% (+/- 4.8) for normal transplants, 13.1% (+/- 2.9) for transplants undergoing mild-to-moderate chronic rejection, 7.9% (+/- 1.3) for ...

Unexpected iliac uptake of 99mTc-DTPA was noted in a 10-year old female referred for evaluation of renal function prior to receiving chemotherapy for relapsed acute lymphocytic leukemia. This scan finding corresponded to the site of a bone marrow biopsy performed five days earlier. X-ray of the area revealed no abnormality. It is assumed that the extrarenal uptake was due to increased vasculari...

Several discussions of the neuroimaging of inflammatory diseases with emphasis on computerized tomography (CT) and magnetic resonance imaging (MRI) findings and on rare diseases, such as sparganosis, neuroborreliosis and various types of encephalitis, have been published during the past year. Infectious processes in immunosuppressed patients have been described by many authors, especially in th...