Technetium (Technetium 99m)

The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, and atomic number 43. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.

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Networked: 1969 relevant articles (66 outcomes, 233 trials/studies)

Relationship Network

Bio-Agent Context: Research Results

Experts

1.	Maurer, Mathew S: 8 articles (01/2020 - 03/2012)
2.	Cardoso, Valbert Nascimento: 6 articles (01/2021 - 04/2006)
3.	Hanna, Mazen: 6 articles (01/2021 - 01/2018)
4.	Sperry, Brett W: 6 articles (01/2021 - 01/2018)
5.	Bokhari, Sabahat: 6 articles (01/2018 - 03/2012)
6.	Wang, Fan: 6 articles (12/2016 - 08/2009)
7.	Gil-Moreno, Antonio: 5 articles (01/2021 - 03/2004)
8.	Jaber, Wael A: 5 articles (01/2021 - 01/2018)
9.	Li, Fang: 5 articles (05/2018 - 04/2007)
10.	Jia, Bing: 5 articles (12/2016 - 08/2009)

Related Diseases

1.	Neoplasms (Cancer) 09/01/2016 - "Diagnostic imaging studies as neck ultrasonography, technetium Tc Tc-sestamibi whole body scintigraphy, CT, and MR are already established tools for this malignancy. " 10/01/2010 - "A single BSGI study involving a label-recommended dose of 740-1100 MBq (20-30 mCi) of technetium 99m-sestamibi is estimated to involve an LAR of fatal cancer that is 20-30 times that of digital mammography in women aged 40 years. " 03/01/2006 - "A careful analysis of the data and the different diagnosis suggests that Technetium bone scan still holds a place in the study of these patients; however, there is a big concern by the fact that some primary malignancies went undetected on the scan." 02/01/2001 - "Immunoscintigraphic studies in 148 patients with this 99-m Technetium (99Tc) labeled mAb, showed a high sensitivity and specificity for in vivo detection of epithelial tumors. " 01/01/1977 - "The results of quantitative studies in patients with bony tumors indicate that reliable reproducible bone scans will be obtained despite the variations in technetium presentation, labelling and injection procedures which may be anticipated in any department of nuclear medicine."
2.	Breast Neoplasms (Breast Cancer) 12/01/2012 - "In 25 % of patients, the use of the gamma probe was necessary to localize the SLN within the first 15 min. This study shows that there is no benefit of using patent blue for SLN mapping in breast cancer patients when using NIR fluorescence and 99(m) technetium-nanocolloid. " 01/01/2019 - "We hypothesized that axillary lymphatic mapping with ICG is equivalent to lymphatic mapping with technetium 99m (99mTc) in breast cancer patients. " 12/01/2011 - "Single-photon-emission computed tomography (SPECT) with 99 technetium sestamibi in the diagnosis of small breast cancer and axillary node involvement." 01/01/2006 - "We injected 45 MBq of radiolabelled technetium intratumourally and 15 MBq subdermally 18 hours before surgery in 21 women with bioptically verified non-palpable breast cancer. " 01/01/2002 - "Subareolar injection of technetium can improve SLN identification rates for breast cancer. "
3.	Infections 01/01/2003 - "The postoperative check up (clinical examination, duplex-doppler ultrasound, scintigraphy of Technetium 99m-labeled leucocytes) revealed the complete remission of infection. " 01/01/1993 - "The aim of this study was to evaluate the role of technetium 99m--hexametazime white blood cell scanning (99mTc scanning) in detecting aortic graft infection, particularly in the low-grade stages. " 07/01/2012 - "Valuate complementary role of (99m)Tc-MDP bone scan and (99m)Technetium hexamethylpropylene-amineoxime ((99m)Tc-HMPAO) labeled leukocyte scintigraphy in diagnosis of bone infection. " 07/01/2010 - "The technetium Tc 99m scintigraphy-labeled granulocytes were positive for active bone infection. " 01/01/1993 - "Detection of aortic graft infection with leukocytes labeled with technetium 99m-hexametazime."
4.	Hemorrhage 01/01/2002 - "Scintigraphy with RBCs in vivo labelled technetium- 99m hastened detection of the source of GI bleeding and improved management of the source of GI bleeding and improved management of disease." 09/01/1989 - "Sigmoidoscopy, colonoscopy, technetium scans, tagged red cell scans and intraoperative angiography were helpful in locating bleeding sites of lower bleeders. " 12/01/2020 - "The aim of this study was to propose a quantitative analysis method using technetium (Tc)-99m-labeled red blood cell RBC imaging to allow calculation of the amount and the rate of gastrointestinal (GI) bleeding. " 05/01/2003 - "This study was performed to determine whether the results of delayed technetium 99m (99mTc)-labeled erythrocyte scintigraphy for lower gastrointestinal tract hemorrhage resulted in different clinical management and outcome from that in cases in which the results of initial scintigraphy were negative or equivocal. " 05/01/1990 - "The aim of this study was to assess the accuracy of technetium 99m-labeled red cell scintigraphy in localizing the site of lower gastrointestinal bleeding. "
5.	Infarction (Infarctions) 01/01/1994 - "This case documents bilateral diabetic thigh infarction identified by abnormal technetium 99m PYP flow studies, MRI signal, and B-mode ultrasound imaging." 03/01/1993 - "Previous studies have shown that myocardial risk areas identified with MCE correlate with areas defined by technetium autoradiography and infarction size. " 01/23/2013 - "Technetium scan confirmed the diagnosis of left renal infarct. " 12/01/2011 - "The primary end point was infarct size measured by technetium Tc 99m tetrofosmin single-photon emission computed tomography between days 5 and 14. " 05/20/2004 - "Myocardium at risk and final infarct size were assessed by Technetium 99m-tetrofosmin immediately before and a few hours, one week and six weeks after. "

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