The application of stable isotope analysis (SIA) has become a standard scientific approach in Agricultural and Ecological researches and, more in general, in several disciplines such as biology, botany, zoology, organic chemistry, climatology, and nutrition. The main objectives of this paper are (1) to provide a simple definition of stable isotopes and (2) to illustrate analytical measurement m...

Positron emission tomography (PET) are widely accepted and used as an effective medical imaging method. We have studied on the dual radioisotopes C11 Cu60 together by modifying isotopes in Standard cyclindirial PET through GATE simulation. scan proper resolution intervals distances between sources present differences parameters such full width at half maximum (FWHM), intensity contrast. Applyin...

CONTEXT The advantage of intraoperative gamma probe detection with (111)In-DPTA-octreotide radiotracer has previously been demonstrated in functional neuroendocrine tumors. We report the only known case of a recurrent nonfunctional pancreatic neuroendocrine neoplasm localized intraoperatively using this radiotracer and a hand held gamma probe. CASE REPORT A 51-year-old woman was found to have...

A 63-year-old lady underwent right-sided nephrectomy for renal cell carcinoma (RCC) in 1991. She required a further nephrectomy in 2003 for RCC in the contralateral side rendering her haemodialysis dependent. Following 2-year disease free survival she was considered for transplantation. An initial CT scan of the abdomen in 2005 raised the possibility of bone metastases, promoting further invest...

UNLABELLED 99mTc-Tetrofosmin is a recently introduced radioactive isotope for the assessment of myocardial perfusion. Data regarding the prognostic value of stress imaging using this isotope are scarce. The aim of this study was to assess the prognostic value of dobutamine-atropine (99m)Tc-tetrofosmin SPECT for the prediction of late cardiac events in patients with known or suspected coronary a...

A17-year-old woman had paroxysmal hypertension. Very high levels of urinary catecholamines suggested a diagnosis of pheochromocytoma (urinary norepinephrine 27 600 nmol/24 hours, normal ,485 nmol/24 hours; urinary normetanephrine 37 607 nmol/24 hours, normal ,2000 nmol/24 hours), but no adrenal tumor was found on the abdominal CT scan. Metaiodobenzylguanidine (MIBG) whole-body scintigraphy was ...

Development efforts have gone into the construction and performance testing of a device that can be used to provide snap shot images of the beam profile. It is intended to function even at very low ion intensities, such as those expected from a rare-isotope accelerator. Intensity profiles and emittance analysis are among the most critical tools used for optimizing beam transport through acceler...