Uptake of the cationic compound hexakis(2-methoxyisobutylisonitrile)-technetium-99m ([99mTc]MIBI) was examined in nine human tumor cell lines. The concentration of [99mTc]MIBI after a 1-h incubation with the compound varies from 5 to 28% of the activity in the external medium. In contrast, normal V79 cells (Chinese hamster lung fibroblasts) and human peripheral blood mononuclear cells exhibit a...

UNLABELLED To visualize the regional localization of glutathione (GSH) in the brain, the relationship between the concentrations of tissue GSH and uptake of [99mTc]meso-hexamethyl propyleneamine oxime ([99mTc] meso-HMPAO) or [99mTc]d,l-hexamethyl propyleneamine oxime ([99mTc]d,l-HMPAO) was studied in mice. METHODS The uptake of [99mTc]meso-HMPAO in the mouse brain was decreased to 35% of cont...

Brown adipose tissue is one kind of adipose tissue and regulates body temperature and balance of energy via non-shivering thermogenesis. The authors present a case that strongly suggested the presence of activated brown adipose tissue in the neck, shoulders and axillary space by increased 18F-FDG uptake. 99mTc-sestamibi and 201Tl dual-tracer SPECT study showed increased 99mTc-sestamibi uptake a...

With rising incidence of breast carcinoma in Asian population, staging workup remains a crucial entity diseasemanagement and outcome. Bone scintigraphy for detection osteoblastic metastasis has remained convenient choice.However, the presence underlying lytic bony lesions sensitivity 99mTc-MDP bone scan is questionable when comparedto 18F-FDG PET-CT scan. We present case that showed better pick...

introduction: ubiquicidin (ubi) 29-41 is a synthetic antimicrobial peptide that binds with the microbial cell membrane at the location of infection. this study was conducted to evaluate its probable efficacy as an infection-imaging agent with potential to differentiate bacterial infection from sterile inflammation in humans. methods: fifteen diabetic foot patients (10 males and 5 females) with...

PULMONARY UPTAKE OF MDP Radionuclide bone scanning is now a standard technique in the staging of many malignancies. Probably the most frequent application is in screening patients with known primary malignancy and potential bone metastases. In primary malignant bone tumours, bone scanning is also useful with images often showing the lesion to be more extensive than was suspected from radiograph...

Endothelial and fibroblast-like cells comprise 5%-10% of total cardiac cell volume and are more resistant to hypoxia than cardiomyocytes. However, their role in the uptake of radiotracers used for myocardial perfusion imaging has largely been ignored. Net uptake of 201TI and 99mTc-hexakis-2-methoxyisobutylisonitrile (99mTc-sestamibi) by cultured rat heart endothelial and fibroblast-like cells a...

Breast metastasis arising from non mammary malignancy is very rare and occurs in malignant melanomas, sarcomas, lung cancers, ovarian tumors, renal and thyroid carcinomas. Few cases of breast metastasis from myxoid liposarcoma have been reported in the worldwide literature. We report herein a case of a 51-year-old woman with 2-year history of a slowly growing, painless mass of the right proxima...

BACKGROUND Molecular breast imaging (MBI) performed with 99mTc sestamibi has been shown to be a valuable technique for the detection of breast cancer. Alternative radiotracers such as 99mTc maraciclatide may offer improved uptake in breast lesions. The purpose of this study was to compare relative performance of 99mTc sestamibi and 99mTc maraciclatide in patients with suspected breast cancer, u...