摘要:

A patient with cholelithiasis and clinically suspected of acute cholecystitis underwent hepatobillary scintigraphy that demonstrated initial nonvisualization of the gallbladder in association with a subtle rim sign, but subsequent gallbladder visualization after administration of intravenous morphine. After an 8-day period of medical management, an elective cholecystectomy was performed, which revealed a gangrenous gallbladder with a gallstone in the neck and full thickness necrosis. These results suggest that gallbladder visualization on morphine-augmented hepatobiliary scintigraphy should be interpreted cautiously in the presence of a rim sign because acute cholecystitis remains a possibility.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

Of 507 breast scintimammograms performed using Tc-99m sestamibi, 34 patients were incidentally found to have abnormal appearing thyroid glands. The authors sought to investigate the clinical significance and/or ascertain an extraneous causative factor for these findings. One cold thyroid nodule was detected and was proven benign through biopsy. Two cases of subacute and chronic thyroiditis were proven, and it is possible that additional patients had this disease process. Focal areas of increased thyroid Tc-99m sestamibi uptake were observed in eight patients and probably represent parathyroid adenomas, nonautonomous hyperfunctioning thyroid nodules, or nontoxic multinodular goiter. The results did not yield an extraneous causative factor, underlying pathology, or clinically significant disease in all of the patients investigated, but the findings suggest a need for careful evaluation of any unusual uptake in the thyroid gland and the rest of the image. The authors do not recommend investigation of all abnormal appearing thyroid glands on Tc-99m sestamibi scintimammography. However, clinical correlation should be recommended.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

Transient bone marrow edema has been thought to be related to other similar entities including transient regional osteoporosis and spontaneous osteonecrosis. Although the findings of three-phase bone imaging have been described in osteonecrosis, scant attention has been paid in the nuclear medicine literature to patients with transient bone marrow edema. The authors report the findings of three-phase bone imaging in two patients with knee pain and a transient bone marrow edema pattern as documented by MRI.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

Splenosis is the ectopic implantation of splenic tissue, usually as the result of trauma. Intraperitoneal, Intrathoracic, and retroperitoneal sites of implantation have been reported. The authors report a case of subcutaneous splenosis Involving the abdominal wall that was imaged with CT and scintigraphy.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

Mycobacterlum avium -intracellulare osteomyelitis is an infrequently reported entity, especially in immunocompetent patients. When multifocal, the imaging findings can be confusing, simulating metastatic disease or other bone lesions. An immunocompetent patient with multi-focal Mycobacterium avium-intracellulare osteomyelitis is presented who has been followed for 18 years and experienced episodes of exacerbations and further dissemination of her disease, followed by periods of partial remission and clinical quiescence. Bone scintigraphy was very useful in evaluating the extent of involvement and monitoring response to treatment.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

In-111 WBC scintigraphy in a woman with relapsed acute lymphoid leukemia demonstrated normal uptake of white blood cells by the liver and spleen, but virtually absent bone marrow activity. Tc-99m SC imaging confirmed normal marrow function and distribution. A bone marrow biopsy revealed mildly hypocellular, regenerating marrow without leukemic infiltration. The effects of systemic cytotoxic chemotherapy on marrow reticuloendothelial function may have been responsible for this discordant uptake.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

Abnormal uptake of TI-201 chloride In the liver along with correlative radiologic Imaging is presented in an unusual case of an 11-year-old boy with a small 2.1 cm hepatocellular carcinoma. Although planar TI-201 images were normal, triple-headed SPECT TI-201 images showed a focal area of increased liver activity at the site of the tumor which corresponded to a photopenic area on Tc-99m SC SPECT images. The patient successfully underwent partial liver resection of a pathologically proven hepatocellular carcinoma.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

The degree of hepatocellular carcinoma vascularity in eight patients was assessed with Tc-99m MAA radionuclide angiography before and after treatment. For chemoembolization therapy, lipiodol and doxorublcin hydrochloride were administered intraarterially along with Gelfoam particles. The ratio of radioactivity in the hepatocellullar carcinoma compared to that in the surrounding uninvolved tissue before therapy was 6.5–19.0 with a mean of 12.0. After therapy, the ratio dropped to 0.5–1.3. Because survival improved significantly after the therapeutic regimen used in these patients, radionuclide Tc-99m MAA angiography appears to be an accurate method for demonstrating successful embolization of the vascular supply in hepatocellular carcinoma.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

Radionuclide Ommayagrams in 25 patients with leptomeningeal carcinomatosis were performed after injection of 0.5 mCi of In-111 DTPA into Ommaya shunt reservoirs to evaluate cerebrospinal fluid-shunt communication, detect the blockage of the cerebrospinal fluid pathway, evaluate the cerebrospinal fluid flow pattern, and predict the distribution of the chemotherapeutics. All results were correlated with MRI evaluations of the brain and spine, as well as clinical findings. Radionuclide Ommayagrams were found to be 73% sensitive and 100% specific in the evaluation of cerebrospinal fluid space disease. MRI of the spine and head was found to be 100% sensitive, but 86% specific for obstructive cerebrospinal fluid space disease.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID

摘要:

To alleviate recurrent pericardial effusion secondary to systemic lupus erythematosus, pericardio-peritoneal window was performed. Subsequently, end stage renal disease developed and the patient required peritoneal dialysis. Patency of the pericardio-peritoneal window was demonstrated by intraperitoneal injection of Tc-99m SC through a Tenckhoff catheter, which prompted special counsel to the patient in order to prevent infectious pericarditis potentially complicating peritoneal dialysis induced-peritonitis.

ISSN:0363-9762    

出版商:OVID    

年代:1995

数据来源: OVID