The "hot nose" sign in the cerebral radionuclide angiogram.
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Brain Diseases↗
Biomedical subjects
N Kutka
Publications and source records attributed to N Kutka.
Pulmonary vascular hemodynamics in chronic lung disease patients with and without oxyhemoglobin desaturation during sleep.
Nonapneic, nocturnal oxyhemoglobin desaturation (NOD) during rapid-eye-movement (REM) sleep has been proposed as a predecessor and possible etiologic factor in the development of pulmonary hypertension in patients both with restrictive and obstructive chronic lung disease. The association between abnormal waking cardiopulmonary hemodynamics and NOD has not been established in patients with mild daytime hypoxemia. Gas exchange, pulmonary function, red cell mass, radionuclide gated cardiac ejection fraction, and supine cardiopulmonary hemodynamics were examined in 36 patients with chronic lung disease. All had a daytime PaO2 greater than 60 mm Hg and REM sleep-related NOD for greater than 5 minutes, to 85 percent or lower. These data were compared to those from 13 subjects with similar symptoms and objective measures of pulmonary dysfunction but without evidence of NOD. Patients with NOD showed more end organ evidence of hypoxemia and more abnormal cardiopulmonary hemodynamics than patients with similar degrees of lung disease but without NOD. The relative role of daytime vs nocturnal hypoxemia in inducing hemodynamic differences between groups cannot be determined from this study.
Heart↗
Lymphomatous intracardiac mass detected by radionuclide ventriculography.
A case of non-Hodgkin's lymphocytic lymphoma with cardiac involvement shown as an intracardiac-filling defect on the radionuclide ventriculogram is presented. The non-invasive diagnostic methods for cardiac lymphoma work-up are discussed. The known causes of cardiac-chamber filling defect(s) are reviewed.
Adult↗
Diffuse bone metastases in a case of astrocytoma.
Presented is an unusual case of astrocytoma with diffuse multiple bony metastases in bone imaging. The classification, spread, and prognosis of astrocytoma are briefly reviewed.
Adult↗
Identification of rhabdomyolysis with technetium-99m HDP bone imaging.
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Bone and Bones↗
Coronary artery disease in patients with cerebrovascular disease: a prospective study.
Coronary artery disease is the cause of death in most patients who have transient ischemic attacks or stroke. Evaluation for this condition is not routinely performed in such patients, and no prospective studies have been reported. We prospectively examined 50 consecutive patients with transient ischemic attacks or mild stroke to determine the prevalence and importance of coronary artery disease. All patients were examined by a cardiologist and underwent both exercise thallium-201 scintigraphy and exercise radionuclide ventriculography. Sixteen patients were suspected to have coronary artery disease on the basis of clinical evaluation. In 15 of these the was confirmed by the nuclear scans. The remaining 34 patients had no clinical evidence of heart disease, yet 14 had abnormal cardiac scans. Twenty of 22 patients with abnormal scans who underwent cardiac catheterization had significant coronary artery disease or a cardiomyopathy. The discovery of heart disease altered clinical management in 13 patients. Overall, 29 of 50 patients had significant coronary artery disease, compared with a 7% prevalence of the condition in other patients of similar age at the same institution.
Cerebral Angiography↗
Technetium 99m sulfur colloid spleen/liver ratio and other liver tests in the diagnosis of cirrhosis.
The results of seven laboratory tests of liver function, including spleen/liver activity ratios obtained by densitometric analysis of scans, are analyzed in 50 patients with proven Laennec's cirrhosis. In this series, the liver scan not only disclosed the liver gross anatomy and structural abnormality and established the best possible site for biopsy examination, but also, the increased splenic activity served as a useful diagnostic indication of Laennec's cirrhosis. Of 50 proven cases of Laennec's cirrhosis, 41 (82%) had abnormal spleen/liver ratios. An abnormal spleen/liver ratio in combination with abnormal results from any one or two other tests was relatively effective in the detection of cirrhosis. The accuracy is improved if the other laboratory tests are chosen from among tests for serum albumin, serum bilirubin, and SGOT. (Liver abnormalities other than cirrhosis can also present an abnormal spleen/liver ratio.) This simple determination extends the value of the liver scan commonly requested in search of metastases, primary lesions, or inflammatory processes, or in preparation for needle biopsy examination.
Alkaline Phosphatase↗