Periostitis due to low-dose fluoride intoxication demonstrated by bone scanning.
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Aged↗
Biomedical subjects
M J Eymontt
Publications and source records attributed to M J Eymontt.
Incidence of rapid resolution of defects on stress thallium scans.
A prospective study was performed to determine the frequency with which defects on stress thallium images undergo rapid resolution. Analysis of paired views showed that 15% of the defects present in anterior views resolve in less than 30 minutes. This study documents the loss of sensitivity that can occur if imaging does not begin promptly after injection.
Aged↗
Toxic nodular goitre in the cat.
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Animals↗
Bone scintigraphy in diabetic osteoarthropathy.
Bone scans of patients with diabetic osteoarthropathy of the ankle and foot were characterized by a combination of diffuse and focal increased uptake, similar to that seen with hyperemia and reactive new bone formation. Scintigraphy showed more extensive abnormalities than radiography, with the scan abnormalities sometimes preceding the radiographic changes. The clinical and scintigraphic appearance of osteoarthropathy may improve following strict diabetic control and non-weight-bearing.
Adult↗
Hepatic hemangiomas: pitfalls in scintigraphic detection.
The evaluation of solitary hepatic lesions detected on scintiscans is a common clinical problem. It is usually assumed that radionuclide rapid sequence flow studies and blood pool images are reliable and accurate methods of demonstrating the vascularity of hepatic lesions. Our recent experience with 3 patients with angiographically proven hepatic hemangiomas indicates that radionuclide techniques may fail to detect the vascularity of hemangiomas. We speculate that blood flow within a hepatic hemangioma may be sluggish and its vascularity may be appreciated only by arteriography. Therefore, we alert the clinician to assess the vascularity of solitary hepatic tumors by angiography before percutaneous liver biopsy and thereby avert the possibility of life-threatening exsanguination, as occurred in one of our patients.
Adult↗
Preparing your patient for nuclear medicine. The safe diagnostic tool.
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Humans↗
Effect of small amounts of 131I on 99mTc detection by the scintillation camera.
A patient who had recently received a therapeutic dose of Na131I showed no 99mTc activity on the scintillation camera when a pertechnetate brain scan was attempted. Subsequent experiments showed that, when even small amounts of 131I are present in the field of view of a scintillation camera equipped with a collimator designed for low-energy photons, counting rates from 99mTc are markedly affected.
Brain Diseases↗
The effects on synovial permeability and synovial fluid leukocyte counts in symptomatic osteoarthritis after intraarticular corticosteroid administration.
The mode of action of intraarticularly administered corticosteroids was studied. Fifteen patients with osteoarthritis and painful effusions had one knee injected with normal saline, triamcinolone hexacetonide 20 mg or prednisolone tebuate 20 mg. Fifteen millicuries of 99mTc-labeled albumin was given intravenously before and at various time intervals after the injection of the depot corticosteroid or saline. Whole blood and synovial fluid (SF) samples were used for blood to SF count rate ratio determinations. SF white blood cell counts (WBC) were also performed. The results indicated that intraarticular depot corticosteroids decreased synovial permeability and caused increases in the SF WBC. Moreover, decreases in pain and knee swelling correlated better with a decrease in vascular permeability, as assessed by the count ratio, than with SF leukocytosis.
Adrenal Cortex Hormones↗