UNLABELLED Planar lung scintigraphy is a standard method used for the diagnosis of lung embolism, but it is hampered by the high incidence of nondiagnostic tests. Ventilation/perfusion SPECT may possibly improve this situation. The objective of this study was to compare planar lung scintigraphy with ventilation/perfusion SPECT using pigs with artificially engendered lung emboli labeled with (20...

introduction: various radiopharmaceuticals, including 67ga, 201tl, and 99mtc-sestamibi have been used to differentiate benign from malignant thyroid nodules. 99mtc-tetrofosmin, a lipophilic cationic radiotracer, and 99mtc-sestamibi have also been reported to accumulate in thyroid tumors. in this study, we evaluated the role of 99mtc-tetrofosmin in the differentiation of malignant from benign th...

BACKGROUND AND THE PURPOSE OF THE STUDY Multiparticulates by powder layering process have advantages of the uniform distribution of the binder solution, easy-to-clean pan and the possibility of applying the successive functional film coating using the same equipment. This study relates to a multiparticulate formulation comprising pellets with a multilayer of pectin-ethyl cellulose on non pareil...

The performance of most—if not all—gamma cameras on the market is satisfactory for static imag ing at low count rates. CT scanning, however, will reduce the need for such static studies, with bone scintigraphy as one of the few possible exceptions. In the future the main load will lie on dynamic func tional studies. Many such procedures—in particu lar radiospirometry, radiocardiography an...

In this case, we would like to introduce a case with intrathyroidal parathyroid adenoma in which planar Tc-99m scintigraphy and intraoperative gamma probe were insufficient but single photon emission computed tomography imaging and intraoperative parathyroid hormone measurement were helpful in localizing the adenoma.

Specific : buoyancy, clinical study, cut-off size, dimension monitoring, dosage form size, floating dosage form, floating force, gamma scintigraphy triple radiolabeling and monitoring technique, gastric emptying, gastric residence time, Hydrodynamically Balanced System (HBS), intragastric buoyancy, monolithic hydrophilic matrix, non-floating dosage form, resultant-weight measuring apparatus and...

Introduction: Various radiopharmaceuticals, including 67Ga, 201Tl, and 99mTc-sestamibi have been used to differentiate benign from malignant thyroid nodules. 99mTc-Tetrofosmin, a lipophilic cationic radiotracer, and 99mTc-sestamibi have also been reported to accumulate in thyroid tumors. In this study, we evaluated the role of 99mTc-Tetrofosmin in the differentiation of malignant from ben...

UNLABELLED Planar gamma-scintigraphy is often used to quantify pulmonary deposition patterns from aerosol inhalers. The results are quite different from those obtained using 3-dimensional PET and SPECT. The purpose of this study was to characterize the effects of scatter and tissue attenuation on the distribution of radiolabeled aerosol as measured by planar scintigraphy using Monte Carlo simul...

AIM Renal agenesis is a fairly common congenital anomaly with an unknown definite etiology. Unilateral renal agenesis is much more common than bilateral renal agenesis, but it usually does not carry any major health consequence, as long as the other kidney is healthy. In some cases, renal agenesis may by associated with other congenital anomalies. We report a neonatal female patient born with u...

BACKGROUND Technetium-99m sestamibi scintigraphy has become one of the most popular techniques for localization of the parathyroid gland after failure of primary neck exploration. OBJECTIVE To examine the efficacy of sestamibi with the hand-held gamma ray detecting probe for the identification of parathyroid adenomas during revision parathyroidectomy. METHODS We reviewed six cases of probe-...