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Results for “RADIOISOTOPE SCANNING”

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At least 19 recordsLinked to original sources
PubMed1980

Testicular torsion: the role of radioisotopic scanning.

Radioisotopic scortal scanning was used as a triage maneuver to assess 18 boys with scrotal and/or testicular complaints. In 4 puberal boys the diagnosis was torsion and treatment consisted of orchiectomy because of testicular necrosis. This technique proved to be of value in studying infants and older children. It appears to be highly reliable and accurate. We believe that it should be used in making the diagnosis of non-operable conditions, such as epididymitis and idiopathic scrotal swelling, thereby avoiding an unnecessary operation.

Acute Disease↗
PubMed1975

Radioisotope scanning for the spinal cord tumor.

Radioisotope scanning with 99mTc-pertechnetate or 67Ga-citrate for the spinal cord tumors was reported. Six patients with spinal cord tumors including 2 ependymomas, 1 neurinoma, 1 metastatic medulloblastoma, 1 metastatic astrocytoma, and 1 metastatic pinealoma as well as 6 patients with non-neoplastic lesions were examined with this method. Two out of 6 cases with tumors showed positive scans and two equivocal scans. This new method is different from myeloscintigraphy and radioisotope angiography as already reported. It directly demonstrates tumor itself like brain scanning and is very useful as nontraumatic method for screening spinal cord lesions, especially in poor risk patient. The usefulness and limitation of this method are discussed.

Adult↗
PubMed1981

The use of radioisotope scans in the preoperative evaluation of epidermoid carcinoma of the head and neck.

Because of the growing awareness of metastatic disease in head and neck patients, a protocol including radioisotope scans was begun through the Baylor Department of Otolaryngology at the Houston V.A. Hospital in an attempt to identify these patients preoperatively. Out of 198 death charts reviewed, only 3 had positive preoperative scans and only one of these was clinically significant. Chest X-rays identified more preoperative metastatic disease than the radioisotope scans. Twenty percent of patients had second primaries, which was more than the number of patients dying with distant metastatic disease. Only 5% of these patients died of metastatic disease with local control. Local control with follow-up for second primaries should be the primary objective of the surgeon. Radioisotope scans were of no significant value in evaluating preoperative metastatic disease.

Carcinoma, Squamous Cell↗
PubMed1978

Experimental subcapsular hematoma of the spleen: natural history and radioisotope scan correlation.

An experimental model was developed in dogs to correlate radioisotope scan findings of iatrogenic, in vivo, splenic injury with the natural history of the injury as determined by the clinical course and both gross and microscopic observations. It was found that small subcapsular injuries do not appear as discrete focal defects on scanning as do larger injuries; however, both small and large injuries cause an increased uptake of the radioactive colloid and increased clearing from the blood. In no dog did the subcapsular injury lead to delayed rupture, bleeding, or cyst formation, and all injuries healed by scarring and thickening of the overlying capsule. This study suggests that the entity of delayed rupture of the spleen in humans is, in fact, delayed diagnosis and not delayed bleeding.

Animals↗
PubMed1978

Radioisotope scanning in the initial staging of bronchogenic carcinoma.

The use of routine radioisotope scanning to screen for subclinical metastatic disease in the initial staging of bronchogenic carcinoma was studied. To define the value of scans, liver, brain, and bone scans were studied prospectively in 111 patients and retrospectively in 114 patients. Among patients with clinical findings suggesting metastatic disease, 14.4 per cent of the liver scans, 12.3 per cent of the brain scans, and 35.7 per cent of the bone scans were positive. All patients free of clinical findings had negative liver and brain scans. Positive bone scans occurred in 8 per cent of the patients without clinical abnormalities. True-positive bone scans occurred in less than 4 per cent of the patients free of clinical abnormalities. The clinical findings noted in the patients pointed to the organ involved in only 76 per cent of the abnormal liver scans, 62 per cent of the abnormal brain scans, and 75 per cent of the abnormal bone scans. Clinical findings associated with positive liver and brain scans were multiple and significant, whereas findings with the positive bone scans could be few or subtle. Routine scanning failed to identify a significant number of patients with clinically unsuspected metastatic disease. Liver, brain, and bone scanning is indicated only in patients suspected of having metastatic disease.

Adult↗
PubMed1977

A comparison of radiography and radioisotope scanning in the detection of Paget's disease and in the assessment of response to human calcitonin.

In eight patients with symptomatic Paget's disease, radiographs and radioisotope bone scans have been compared before treatment by high dose synthetic human calcitonin (CIBA 47175-Ba) and three months and 12 months later. In six patients quantitative radioisotope scans allowed calculation of relative radioactivity in normal bone, Paget's disease and bone adjacent to osteoarthritic joints. Comparison of radiographs and scans showed 69 sites diagnosed as Paget's disease on both examinations; nine sites showed radiographic changes of Paget's disease but had negative radioisotope scans and two sites were abnormal on the scan but radiologically normal. One of these two reverted towards normal during treatment with calcitonin. Comparison of analogue scans done at three months and 12 months with initial scans showed diminished uptake in Paget's disease compared with normal bone, and quantitation showed this was due to decreased absolute uptake in Paget's disease and a slight increase in normal bone. Osteoarthritic bone showed no significant response to calcitonin.

Aged↗
PubMed1980

Radioisotope section scanning.

Radioisotope section scanning, a relatively new imaging technique, can be regarded as "in vivo autoradiography." It permits, via computer utilization, reconstruction of a three-dimensional image of the distribution of a radioactive tracer within the body. Rapid progress in the design of instrumentation has allowed for initial clinical trials to be carried out. Worldwide, some 30 centers are currently engaged in research in this field, simultaneously ascertaining the physical performance characteristics and figures of merit of the different apparatuses and clarifying the most promising areas of clinical application. This paper is concerned only with radioisotope section scanning via standard radionuclides and radiopharmaceuticals. It does not address itself to work involving positron-emitting radionuclides. Data are given on the physical parameters and areas of clinical application of several types of available equipment.

Breast Neoplasms↗
PubMed1983

Cost effective analysis of prenephrectomy radioisotope scans in renal cell carcinoma.

To evaluate the cost-effectiveness of liver and bone isotope scans, results of scans were reviewed in 60 patients with renal cell carcinoma. In no patient did the results of the scans influence or change the treatment plan. Routine utilization of radioisotope scans as part of the preoperative evaluation of patients with renal cell carcinoma should be discouraged.

Adenocarcinoma↗
PubMed1975

Radioisotope scans in the evaluation of metastatic bronchogenic carcinoma.

In this study, we evaluated the accuracy of radioisotope scans in detecting metastatic lesions in patients with bronchogenic carcinoma. To be included in the study, the patient had to have undergone liver, brain, and/or bone scanning within 10 weeks of autopsy. Other means of evaluating these organs for metastatic involvement were used as well. The liver was checked by palpation and by determination of enzyme levels. A history, physical examination, and neurologic examination were used to establish the possibility of brain metastases. For studying bones, a history, physical examination, and conventional x-ray films were employed. Results of the scans and other tests were compared with findings at autopsy, and accuracy rates for each method of study were determined.

Alkaline Phosphatase↗
PubMed1976

Diagnosis of Meckel's diverticulum by radioisotope scanning.

The clinical illness observed in a 5-month-old infant with Meckel's diverticulum is described. A sodium pertechnetate radioisotope scan was employed to confirm the clinical impression. The technical procedure, evaluation, and importance of the radioisotope study is discussed.

Humans↗
PubMed1976

Radioisotope scanning in inflammatory muscle disease.

Fourteen whole-body rectilinear bone scans using technetium 99m-polyphosphate were done in nine patients with well-documented inflammatory myopathy (either polymyositis or dermatomyositis). In all nine patients, the scans showed evidence of increased muscle labeling. Muscle uptake was markedly increased in one patient, moderately increased in two patients, and minimally increased in six patients. The degree of muscle labeling correlated with the severity of the muscle weakness at the time the scan was done. In four patients, who received high-dose corticosteroid treatment, muscle uptake was decreased following therapy. These findings suggest that radioisotope scanning may be useful in the diagnosis and management of patients with inflammatory muscle diseases.

Adrenal Cortex Hormones↗