Robert N. Berk

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Cryptosporidiosis is a parasitic disease of the gastrointestinal tract that causes a choleralike diarrhea in patients with the acquired immunodeficiency syndrome (AIDS). Review of barium studies of the stomach and small intestine in 16 AIDS patients with cryptosporidiosis showed that the studies were abnormal in 13. Of these, five had moderate or marked(More)
  • R N Berk
  • 1992
The purpose of this paper is to give inexperienced authors inside advice that will help them prepare articles for submission to a radiology journal, particularly the AJR. Experienced authors may also find a useful hint or two. I discuss five guiding principles that authors should follow, the correct organization of manuscripts, the proper content of each(More)
Because the efficacy of cholecystokinin cholecystography in the detection of chronic acalculous cholecystitis remains in doubt, the procedure is rarely used in clinical practice. However, the ability to observe gallbladder contraction with sonography and 99mTc-para-isopropylacetanilido-iminodiacetic acid cholescintigraphy (PIPIDA) offers a possibility to(More)
Changes in the radiological diagnosis of gallbladder disease are occurring at a remarkable rate. In this symposium, several recognized authorities place the various diagnostic modalities and their interrelation in modern perspective. The present and future roles of oral cholecystography and intravenous cholangiography, the radiological diagnosis of chronic(More)
The extent to which various concentrations of the paramagnetic metal ions [gadolinium (III), manganese (II), chromium (III), iron (III), nickel (II), copper (II), and cobalt (II)] affect proton magnetic relaxation times of distilled water, 4% human serum albumin (HSA), and dog plasma was studied in vitro. The pH of water and HSA varied from 4 to 8. Nuclear(More)