ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

A Tc-99m-methylene diphosphonate study in a 41- year-old man demonstrated multiple regions of intense activity in the appendicular and axial skeleton, characteristic of metastatic disease. However, bone biopsy demonstrated atypical mycobacterium osteomyelitis; there was no evidence of neoplasm.

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

Sixty-two patients hospitalized because of prolonged chest pain and initial electrocardiographic (ECG) changes of ST depression and T-wave inversion suggestive of acute subendocardial myocardial infarction were evaluated to determine the ability of Tc-99m-stannous pyrophosphate myocardial scintigraphy to detect the presence or absence of acute subendocardial myocardial necrosis. Three groups of patients were designated. Group A consisted of eight patients (13%) who developed reduction of R-waves of more than 25% or new Q-waves broader than 0.03 seconds; of these patients with acute transmural myocardial infarction, all had well-localized, abnormal scintigrams. Group B consisted of 30 patients with ECG changes and subsequent enzymatic documentation, including elevated serum creatine kinase-B levels as determined by radioimmunoassay, of the presence of acute subendocardial myocardial infarction. Of these, 27 had abnormal scintigrams, including 18 with well-localized patterns and nine with “poorly localized” patterns. Group C consisted of 24 patients (39%) with chest pain, but without enzymatic documentation of the presence of acute myocardial infarction (acute coronary insufficiency). Eight of these had abnormal scintigrams, including one with a well-localized pattern and seven with “poorly localized” patterns. In four of the latter, the scintigrams were “persistently positive” several weeks to months after a previous myocardial infarct. Serial myocardial imaging will be necessary to identify such patients.

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

Usually hepatic tumors show focal defects on both Tc-99m-colloid liver and Tc-99m-hepatobiliary imaging. This report involves a rare case in which a hepatoma did not take up Tc-99m-phytate, but concentrated and cleared a Tc-99m-hepatobiliary agent, Tc-99mpyridoxylidene isoleucine.

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

Sixty percent of differentiated thyroid carcinoma bone metastases identified by local radioactive iodide uptake and radiographic changes were negative in the bone scans. Another 20% of the bony metastases showed only a minimal increased uptake of bone imaging radionuclides. It is concluded that the bone scan is not a useful tool in the work-up for metastatic thyroid cancer.

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

Increased accumulation of radioactivity in a pericardial effusion was observed on a routine bone scan in a patient with known primary breast and lung carcinomas. A dynamic flow study and echocardiography confirmed the presence of the effusion. Microscopic examination of the pericardial fluid revealed the presence of malignant cells.

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

摘要:

The uptake of Tc-99m-diphosphonate was studied topographically and quantitatively on 258 diseased hips. For many diseased hips, bone scintigraphy provides items of information that complement the clinical, radiological, and biological data, with which it should always be compared. The localization, extent, and intensity of the uptake differ greatly according to the hip disorder studied, and depend not only on the cause of the lesion but also on its stage of evolution. Bone scintigraphy can shed light on the etiologic diagnosis of a painful hip at the beginning of its evolution, before definite roentgenographic signs appear, thanks to some very precise characteristics of the uptake; this is the case for transient osteoporosis of the hip, aseptic osteonecrosis, Legg-Perthes disease, early arthritis of the hip joint, and stress fractures of the femoral neck or of the pubic rami.

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID

ISSN:0363-9762    

出版商:OVID    

年代:1980

数据来源: OVID