نتایج جستجو برای: tc pertechnetate
تعداد نتایج: 30030 فیلتر نتایج به سال:
In the first part of this two-part article, the characteristics, potential uses, radiochemical purity and method of evaluating the activity of Tc99m will be discussed. In the second part of the article, the dosimetry of this radionuclide will be presented for various routes of administration as well as for various chem ical configurations, such as the pertechnetate ion, the colloid and the prot...
Introduction: Extraosseous accumulation of 99mTc – methylene diphosphonate (MDP) may be due to neoplastic, dystrophic, hormonal, inflammatory, ischemic, traumatic or excretory disorders. 99mTc-MDP incidental thyroid uptake is not frequent and is possibly caused by the presence of dystrophic or metastatic calcification, biopsy procedure and presence of beni...
Primary intrathoracic goiter: Incidental diagnosis on 99m-Tc pertechnetate radioisotope thyroid scan
The superior vena caval syndrome caused by a substernal thyroid is a rare occurrence. It can, however, result from external compression of the superior vena cava or innominate veins by an intrathoracic goiter. This report details such a case in which innominate vein occlusion was documented both by conventional venography and by a new technique utilizing a radionuclide (sodium pertechnetate 9#{...
ACR Appropriateness Criteria 1 Urinary Tract Infection–Child American College of Radiology ACR Appropriateness Criteria Urinary Tract Infection–Child Variant 1: Age <2 months, first febrile urinary tract infection. Radiologic Procedure Rating Comments RRL* US kidneys and bladder 9 O Voiding cystourethrography 6 Consider this procedure in boys and in the presence of sonographic abnormality. ☢☢ T...
RATIONALE Molecular imaging is useful for longitudinal assessment of engraftment. However, it is not known which factors, other than cell number, can influence the molecular imaging signal obtained from reporter genes. OBJECTIVE The effects of cell dissociation/suspension on cellular bioenergetics and the signal obtained by firefly luciferase and human sodium-iodide symporter labeling of card...
Radionuclide Tc99m DTPA (Diethylenetriaminepenta Acetic Acid) renal imaging is being used to assist in the evaluation of overall GFR, the intra-renal transit time, the cortical transit time, response to frusimide injection, diagnosis of ATN and rejection in renal transplant cases. A study was conducted at PINSTECH in order to prepare DTPA kit locally and evaluate the labeling efficiency as well...
UNLABELLED Red blood cells (RBC) labeled in vivo with (99m)Tc-pertechnetate are used worldwide in nuclear medicine departments. METHODS Here, we present a case of (99m)Tc-RBC labeling failure associated with chocolate intake in a 25-y-old woman, resulting in uninterpretable images. Because of this clinical observation, we performed in vitro RBC labeling on blood samples from volunteers after ...
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