Radiology
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Biography Historical Article
In memoriam. Jean-Jacques Garneau, M.D. 1916--1977.
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Fifteen patients with clinical and electrocardiographic features of acute pericarditis underwent myocardial scintigraphy using 99mTc-pyrophosphate. All had normal images. ⋯ No stainable tissue calcium was demonstrated histochemically in the pericardium or myocardium of these dogs. Our results suggest that 99mTc-PYP myocardial radionuclide images are normal in acute pericarditis in the absence of ischemic heart disease.
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Obstructing esophageal food impaction was successfully relieved in 3 patients by the administration of intravenous glucagon. Since proteolytic enzyme digestion of bolus impaction carries a clear risk of fatal esophageal perforation, early therapeutic administration of glucagon during initial esophagography affords a safe and effective acute-care radiologic adjunct. Advantages include immediate diagnosis and therapy, effectiveness in meat and vegetable impactions, and safety for repeated doses. A glucagon-papain combination is suggested as a routine regimen during standard efforts at enzymatic disimpaction.
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Two patients with scleroderma demonstrated intra-articular calcification, which is rarely observed in this disease. The authors suggest that intra-articular calcification and erosion of adjacent cartilage and bone are related.
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Scattered radiation doses to the eyes, thyroid and gonads of infants and children undergoing EMI head scans have been measured with thermoluminescent dosimeters. An average skin dose of 1.3 rad per scan was measured. Results are reported relative to incident skin dose and indicate that it is likely that there is no somatic or genetic hazard due to scattered radiation during an EMI head scan.