نتایج جستجو برای: sodium pertechnetate tc 99m

تعداد نتایج: 217756  

Journal: :Biological research 2007
Silvana Ramos Farías Moreno Adriano Arnobio Jorge José De Carvalho Lucia Nascimento Margareth Oliveira Timoteo Beni Olej Emely Kazan Rocha Mario Pereira Mario Bernardo-Filho Luiz Querino De Araújo Caldas

The radiobiocomplexes labeled with technetium-99m (Tc-99m) have been widely used in nuclear medicine in single photon emission computed tomography and in basic research. The aim of this study was to assess the influence of a Nectandra membranacea extract on the bioavailability of the sodium pertechnetate (Na(99m)TcO(4)) radiobiocomplex in rat organs. The animals were treated with a N. membranac...

2012
Guido Michels Markus Dietlein Carsten Kobe Roman Pfister

A 63-year-old asymptomatic woman with cured Hodgkin diseases presented for restaging. The chest computed tomography showed a mass at the right side of the upper mediastinum. The benignity and the origin of the tissue were unknown. First, we performed a bronchoscopy-guided biopsy but without success. In the next step, we initiated radionuclide imaging with technetium-99m pertechnetate (Tc-99m) a...

2013
Claire L. Corkhill Jonathan W. Bridge Xiaohui C. Chen Phil Hillel Steve F. Thornton Maria E. Romero-Gonzalez Steven A. Banwart Neil C. Hyatt

We present a novel methodology for determining the transport of technetium-99m, a γ-emitting metastable isomer of (99)Tc, through quartz sand and porous media relevant to the disposal of nuclear waste in a geological disposal facility (GDF). Quartz sand is utilized as a model medium, and the applicability of the methodology to determine radionuclide transport in engineered backfill cement is ex...

Journal: :Hellenic journal of nuclear medicine 2008
Bhagwant Rai Mittal Raghava Kashyap Anish Bhattacharya Baljinder Singh Bishan Dass Radotra Katragadda Lakshmi Narasimha Rao

Meckel's diverticulum (MD) is the most common congenital gastrointestinal anomaly. About 50% of diverticulae contain ectopic gastric mucosa. Gastric mucosal secretions can cause peptic ulceration resulting in pain, bleeding and perforation. Technetium-99m ((99m)Tc) pertechnetate scintigraphy is helpful in diagnosing ectopic gastric mucosa. We have conducted a retrospective analysis of scintigra...

Journal: :Hellenic journal of nuclear medicine 2013
Zhong-Ling Qiu Yan-Li Xue Chen-Tian Shen Rui-Sen Zhu Quan-Yong Luo

This is the first case of Graves' disease in an adolescent with lingual and prelaryngeal dual congenital ectopia and no orthotopic thyroid gland identified by technetium-99m-pertechnetate (99mTcO-4) SPET/CT imaging in a 15 years old boy. After 8 weeks treatment with methimazole, Graves' disease subsided. Fine needle aspiration cytology of the mass revealed the normal colloid and normal follicul...

2014
Ramë Miftari Ferki Fejza Xhavit Bicaj Adem Nura Valdete Topciu Ismet Bajrami

PURPOSE In cases of thyroid toxic autonomous nodule, anterior projection of Tc-99m pertechnetate image shows a hot nodule that occupies most, or the entire thyroid lobe with near-total or total suppression of the contra lateral lobe. In this case is very difficult to distinguish toxic nodule from lobe agenesis. Our interest was to estimate and determinate the rate of radioactivity when the sour...

Journal: :Turkish journal of medical sciences 2015
Ebru Örsal Bedri Seven Mustafa Teoman Erdem Erhan Varoğlu Hatice Farimaz Arif Kürşad Ayan

BACKGROUND/AIM Isotretinoin is an effective drug utilized in the management of acne vulgaris and is known to cause dry mouth. In this study, we aimed to evaluate this effect of isotretinoin on the salivary gland function in patients with acne vulgaris using technetium-99m (Tc-99m) pertechnetate imaging of the salivary glands. MATERIALS AND METHODS The study population consisted of 28 patients...

Journal: :Annals of nuclear medicine 2005
Vani Vijayakumar Matthew E Anderson

Localization of Tc-99m sestamibi (MIBI) by parathyroid adenomas (PA) is well known. Typically the radionuclide washes out slowly from the PAs located in the neck. Rapid washout from some PAs has been reported. Various hypotheses have been postulated for slow and rapid clearance of MIBI from PAs, located in the neck. However, the washout of MIBI from ectopic parathyroid adenoma (EPA) in not well...

Journal: :Collegium antropologicum 2014
Neva Girotto Svjetlana Grbac-Ivanković Harry Nikolić Gordana Brumini Aleksandar Smokvina

The purpose of this study was to evaluate renographic parameters obtained from healthy renal units (RUs) in newborns and infants with unilateral kidney condition. Thirty three children including twenty newborns, referred to Technetium-99m mercaptoacetyltriglycine (Tc-99m MAG3) diuretic scintigraphy due to unilateral kidney condition entered the study. Only contralateral, healthy RUs were analyz...

2014
Joerg Kotzerke Robert Punzet Roswitha Runge Sandra Ferl Liane Oehme Gerd Wunderlich Robert Freudenberg

(99m)Tc is the standard radionuclide used for nuclear medicine imaging. In addition to gamma irradiation, (99m)Tc emits low-energy Auger and conversion electrons that deposit their energy within nanometers of the decay site. To study the potential for DNA damage, direct DNA binding is required. Plasmid DNA enables the investigation of the unprotected interactions between molecules and DNA that ...

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