摘要:

A small encapsulated papillary thyroid cancer was found in a patient who had received 1–131 therapy for Graves' disease 31 months previously. The relationship of Graves' hyperthyroidism and thyroid cancer is discussed, as well as the possible role of 1–131 as a cause of the cancer. The published data do not support 1–131 as an etiology. The patient is clinically well and cured of both hyperthyroidism and the cancer.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

The detection of metastatic disease confined to the bone marrow compartment has in the past been technically limited. We have identified excellent imaging of bone marrow metastases during the evaluation of a Tc-99m labeled monoclonal antibody (NR-LU-10 Fab) (NeoRx Corp., Seattle, WA). This occurred during a study to assess the monoclonal antibody's ability to detect sites of small cell cancer (primary and metastatic). The study by design compares areas seen by the monoclonal antibody scan with those found by standard staging methods in patients with small cell lung cancer. Standard staging included chest x-rays, bone scans, CT studies of the abdomen, and histologic examination of the bone marrow. Fifteen patients have been evaluated, four on two occasions, for a total of 19 monoclonal imaging studies. Metastasis to the marrow compartment was identified by the monoclonal imaging in all patients whose bone marrow biopsies were positive for small cell carcinoma, and it was primarily responsible for the eventual detection of extensive disease (marrow involvement) in one patient. Thus it appears that compartmental bone marrow imaging for metastatic disease is possible with immunoscintigraphy.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

Phlegmasia cerulea dolens (PCD) is characterized by the presence of massive venous occlusion of the veins in an extremity, leading to ischemia and sometimes gangrene. We report a case of phlegmasia cerulea dolens that was evaluated by radionuclide venography. We report both this case and information regarding phlegmasia and therapy of PCD to promote awareness of this disorder among radiologists and nuclear medicine physicians who perform radionuclide venograms.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

Voiding cystourethrography is widely used in children to detect vesicoureteral reflux disease. A case of radionuclide voiding cystourethrography is reported, where the initial location of the catheter tip in an open ureter ostium might have lead to erroneous interpretation. Recommendations for catheter technique and control of imaging in voiding cystourethrography are given.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

The authors present the case of a child with a predominantly unilateral craniofacial fibrous dysplasia and a substantial redirection of internal carotid blood flow to the dysplastic bone. The case illustrates the advantages of using multiple imaging modalities in the evaluation of this disorder. CT showed the diagnostic findings of fibrous dysplasia and demonstrated the extent of bony involvement. MRI showed the extent and vascularity of the intradiploic fibrous mass and best demonstrated the distortion of underlying cerebral structures. Tc-99m HMPAO brain scintigraphy demonstrated adequate ipsilat-eral cerebral perfusion, thereby excluding any significant cerebral “steal.”

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

Two cases of splenic uptake of Tc-99m MDP are presented, in which there was preserved reticuloendothelial activity (Tc-99m sulfur colloid accumulation). In addition to the literature data, data from these cases were used to show the disassociation of uptake of bone agents and radiocolloid in the spleen. Prior reports, in which both agents concentrated in the spleen, were tabulated. An updated gamut on splenic accumulation of Tc-99m MDP or analogues was given.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

Using short axis slices of TI-201 myocardial SPECT images, total left ventricular (LV) mass, perfused LV mass, defect size, defect mass, ratio of total LV area to cavity area (T/C), ratio of radius of total LV area to radius of cavity area (TR/CR), and ratio of wall thickness to radius of cavity area (W/R) were obtained. The left ventricular ejection fraction (LVEF) was calculated using blood pool imaging studies. A total of 33 patients with old myocardial infarctions were studied. The patients were divided into group 1 (n = 16) with no history of heart failure, and group 2 (n = 17) with a history of heart failure. The LVEF (P< 0.001), T/C (P< 0.005), TR/CR (P< 0.005) and W/R (P< 0.01) were significantly lower, while the total LV mass (P< 0.001) and perfused LV mass (P< 0.01) were significantly higher in group 2. In the whole group of 33 patients, there was inverse linear correlation between the total LV mass and LVEF (r = −0.82), perfused LV mass and LVEF (r = −0.67), and defect mass and LVEF (r = −0.59). There was linear correlation between W/R and LVEF (r = 0.64). Nonlinear correlations were found between T/C and LVEF (r = 0.81) and TR/CR and LVEF (r = 0.80). TI-201 myocardial SPECT imaging is useful for the evaluation of LV hypertrophy and cavity dilation in patients with previous myocardial infarction.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

Cardiac metastasis can occur with any widely disseminated malignancy, especially from carcinoma of the kidney, stomach, lung, breast, or from melanocarcinoma. Metastasis to the myocardium can protrude from the endocardium into the intraventricular cavity of the left ventricle. We present a case of renal cell carcinoma and left ventricle cavitary metastases, documented by an echocardiogram demonstrated in a cardiac blood pool study as a photon-deficient area in the left ventricle cavity.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

A rare kind of obstructive jaundice caused by compression on the common bile duct due to an inflated Foley catheter balloon placed in the duodenum after Suguira surgery for bleeding esophageal vesicles secondary to portal hypertension is presented. After deflating the balloon, the obstruction was relieved. Tc-99m HIDA studies were helpful in the diagnosis of obstruction of the common bile duct and the response following the deflation.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID

摘要:

A 44-year-old woman with a history of systemic lupus erythematosus on no steroid or immunosuppressive medication presented in septic shock complicated by renal failure and disseminated intravascular coagulation. The patient was treated with antibiotics. Liver-spleen scintigraphy with Tc-99m albumin colloid initially failed to reveal tracer accumulation in the spleen. Follow-up study after one year revealed normal tracer uptake in the spleen. The transient blockade of reticuloendothelial system by immune complexes is the most likely mechanism. Other possible mechanisms include disturbed vascular supply due to thrombosis secondary to the disseminated intravascular coagulation or vasculitis.

ISSN:0363-9762    

出版商:OVID    

年代:1991

数据来源: OVID