Normal anatomy of the larynx and pharynx and the differential diagnosis of foreign bodies.
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Airway Obstruction↗
Biomedical subjects
L R Muroff
Publications and source records attributed to L R Muroff.
The use of multiple radionuclide imaging to differentiate the focal intrahepatic lesion.
Thirty-five patients with various focal intrahepatic lesions were evaluated with multiple radionuclides. Comparison of the blood pool scans with angiography and histology demonstrated an excellent correlation of these studies. Diagnostic accuracy was improved by separating the blood and pool scans into 3 categories. Each category suggested, at most, one further study to provide specific diagnostic information. Thus, by utilizing 3 radiopharmaceuticals, one can be more specific in preoperative diagnoses.
Carcinoma, Hepatocellular↗
Principles of contrast enhancement in the evaluation of brain diseases: an overview.
Intravenous contrast media are widely used in MR imaging of the brain. Clinical utility is high in both neoplastic and non-neoplastic disease. The agents approved to date are all gadolinium chelates, with extracellular distribution and renal excretion. The agents differ in regard to the maximum dose that can be administered and the theoretical safety margin. When administered at the same dose, the efficacy of the different available agents is comparable. Described in the following review article are the diagnostic use of contrast media and the patterns of enhancement encountered in neoplastic disease, infection, vascular disorders, and diseases of white matter. Only in congenital brain disease, when acute abnormalities are not suspected clinically and neoplastic disease is not a question, is contrast enhancement not indicated. The gadolinium chelates play a major role in the evaluation of patients by MR with known or suspected brain disease. These agents improve both the sensitivity and specificity of the examination. In many cases, lesions cannot be identified before contrast administration. Lesion delineation, assessment of lesion activity, and differential diagnosis are all improved, in general, with the addition of postcontrast scans. The scope of applications continues to expand as the modality and clinical experience matures.
Brain Diseases↗