نتایج جستجو برای: tc 99m

تعداد نتایج: 31185  

2014
Christoph Tausch Astrid Baege Christoph Rageth

Two decades ago, lymphatic mapping of sentinel lymph nodes (SLN) was introduced into surgical cancer management and was termed sentinel node navigated surgery. Although this technique is now routinely performed in the management of breast cancer and malignant melanoma, it is still under investigation for use in other cancers. The radioisotope technetium ((99m)Tc) and vital blue dyes are among t...

Journal: :Annals of nuclear medicine 2002
Kuniaki Ogasawara Shigeru Yasuda Hirotsugu Yukawa Munemasa Yamagata Masato Kin Akira Ogawa

Lesions in acute herpes simplex encephalitis (HSE) have been reported to show decreased uptake of Tc-99m ethyl cysteinate dimer (ECD). A patient with acute HSE displaying a lesion in the left temporal lobe was evaluated by means of Tc-99m ECD single-photon emission computed tomography (SPECT). Dynamic SPECT images indicated regionally increased uptake of tracer in the ipsilateral temporal lobe ...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2007
Chantal P Bleeker-Rovers Huub J J M Rennen Otto C Boerman Ate B Wymenga Eric P Visser Johannes H Bakker Jos W M van der Meer Frans H M Corstens Wim J G Oyen

UNLABELLED Interleukin 8 (IL-8) is a chemotactic cytokine that binds with a high affinity to receptors expressed on neutrophils. Previous studies with various animal models showed that (99m)Tc-labeled IL-8 accumulates specifically and rapidly in infectious and inflammatory foci. The aims of the present study were to evaluate the safety of IL-8 in humans and to assess the value of (99m)Tc-IL-8 s...

2013
Shundong Ji Yumin Zheng Guoqiang Shao Yang Zhou Shuang Liu

PURPOSE (99m)Tc-3P-RGD2 is a (99m)Tc-labeled dimeric cyclic RGD peptide that binds to integrin α(v)β₃ with high affinity and specificity. The purpose of this study was to demonstrate the utility of (99m)Tc-3P-RGD₂ SPECT/CT (single photon emission computed tomography/computed tomography) as a molecular imaging tool for noninvasive monitoring breast tumor early response to antiangiogenesis therap...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2009
Mauro Liberatore Alessandro Pala Sergio Scaccianoce Christos Anagnostou Ugo Di Tondo Enrico Calandri Piera D'Elia Milton D Gross Domenico Rubello

UNLABELLED Human beta-defensin-3 (HBD-3) is an antimicrobial peptide with bactericidal effects on many gram-positive and gram-negative bacteria and some yeast species and, if radiolabeled, might be used to distinguish bacterial infection from sterile inflammation. The goals of the present study were to develop methods for radiolabeling HBD-3 with (99m)Tc and to perform preliminary investigation...

2016
Geert Hendrikx Mark H. Vries Matthias Bauwens Marijke De Saint-Hubert Allard Wagenaar Joël Guillaume Levinia Boonen Mark J. Post Felix M. Mottaghy

BACKGROUND We aimed to determine the accuracy of laser Doppler perfusion imaging (LDPI) in an animal model for hind limb ischemia. METHODS We used a murine (C57Bl/6 mice) ischemic hind limb model in which we compared LDPI with the clinically used (99m)Tc-sestamibi SPECT perfusion imaging (n = 7). In addition, we used the SPECT tracer (99m)Tc-pyrophosphate ((99m)Tc-PyP) to image muscular damag...

2012
Tuija Kangasmaa Jyrki Kuikka Antti Sohlberg

Simultaneous Tl-201/Tc-99m dual isotope myocardial perfusion SPECT is seriously hampered by down-scatter from Tc-99m into the Tl-201 energy window. This paper presents and optimises the ordered-subsets-expectation-maximisation-(OS-EM-) based reconstruction algorithm, which corrects the down-scatter using an efficient Monte Carlo (MC) simulator. The algorithm starts by first reconstructing the T...

Journal: :Respiration; international review of thoracic diseases 2010
Mario Santini Alfonso Fiorelli Giovanni Vicidomini Paolo Laperuta Luigi Busiello Pier Francesco Rambaldi Luigi Mansi Antonio Rotondo

BACKGROUND (18)FDG-PET plays a significant role in diagnosing malignancy of lung lesions but remains an expensive test available at a limited number of sites in Italy. OBJECTIVE We prospectively compare the diagnostic accuracy of (99m)Tc-MIBI- SPECT and (18)FDG-PET in patients with indeterminate lung lesions to demonstrate that (99m)Tc-MIBI-SPECT may be considered as a valid alternative when ...

Journal: :Acta ortopedica mexicana 2010
Félix Gustavo Mora Ríos Agustín Isunza Ramírez Alberto López Marmolejo Rosa María Palma Rosillo Sergio Guízar Cuevas Ignacio Mora Magaña Víctor Hugo Velázquez Pedroza

INTRODUCTION The Tc-99m-ciprofloxacin complex, introduced in 1993, has been extensively evaluated all over the world with good results for the diagnosis of active bacterial osteoarticular infections. There are only a few publications on the use of this procedure in pediatric ages. In our study we evaluated the efficacy of the Tc-99m ciprofloxacin scan for the diagnosis of osteoarticular infecti...

Journal: :Chinese journal of cancer research = Chung-kuo yen cheng yen chiu 2014
Morikatsu Yoshida Shinya Shiraishi Noriko Tsuda Fumi Sakamoto Seiji Tomiguchi Yasuyuki Yamashita

(99m)Tc-galactosyl human serum albumin (GSA) scintigraphy is useful to evaluate hepatic function and hepatic functional reserve. A reliable SPECT and CT integrated system is now commercially available. Using this system, we can obtain (99m)Tc-GSA SPECT/CT fused imaging with a small registration error. Therefore, the (99m)Tc-GSA scintigraphy techniques prove more useful in clinical practice than...

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