نتایج جستجو برای: 68ga dotatate petct

تعداد نتایج: 2155  

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2012
Alexander R Haug Ramona Cindea-Drimus Christoph J Auernhammer Martin Reincke Björn Wängler Christopher Uebleis Gerwin P Schmidt Burkhard Göke Peter Bartenstein Marcus Hacker

UNLABELLED In patients with suspected but yet not localized neuroendocrine tumors (NETs), early diagnosis or reliable exclusion is crucial for optimal individual prognosis and therapy. Despite recourse to several imaging modalities, the definite diagnosis of NET can be challenging. Therefore, we tested (68)Ga-DOTATATE PET/CT as a tool for improved diagnosis in a cohort of patients with suspecte...

2017
Eleni Gourni Luigi Del Pozzo Mark Bartholomä Yvonne Kiefer Philipp T. Meyer Helmut R. Maecke Jason P. Holland

Radiotracers incorporating the urea-based Glu-NH-C(O)-NH-Lys group have gained prominence due to their role in targeting prostate-specific membrane antigen (PSMA)-a clinical biomarker of prostate cancer. Here, the synthesis, radiolabeling, and in vitro and in vivo characterization of two 68Ga-radiolabeled Glu-NH-C(O)-NH-Lys radiotracers conjugated to the desferrioxamine B (DFO) chelate were eva...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2015
Andreas Pfeifer Ulrich Knigge Tina Binderup Jann Mortensen Peter Oturai Annika Loft Anne Kiil Berthelsen Seppo W Langer Palle Rasmussen Dennis Elema Eric von Benzon Liselotte Højgaard Andreas Kjaer

UNLABELLED Neuroendocrine tumors (NETs) can be visualized using radiolabeled somatostatin analogs. We have previously shown the clinical potential of (64)Cu-DOTATATE in a small first-in-human feasibility study. The aim of the present study was, in a larger prospective design, to compare on a head-to-head basis the performance of (64)Cu-DOTATATE and (111)In-diethylenetriaminepentaacetic acid (DT...

2013
Frank Rösch

68Ga faces a renaissance initiated by the development of new 68Ge/68Ga radionuclide generators, sophisticated 68Ga radiopharmaceuticals, preclinical research and state-of-the-art clincial diagnoses via positron emission tomography/computed tomography (PET/CT). A new type of 68Ge/68Ga generator became commercially available in the first years of the 21st century, with eluates based on hydrochlor...

2014
Sander M Bison Stefan E Pool Stuart J Koelewijn Linda M van der Graaf Harald C Groen Marleen Melis Marion de Jong

BACKGROUND Previously, we reported on the unexpected development of distant metastases in the subcutaneous rat pancreas CA20948 tumor model after 4.5 weeks of treatment with RAD001-only or in combination with [(177)Lu-DOTA(0),Tyr(3)]octreotate ((177)Lu-DOTATATE) (Cancer Res. 73:12-8, 2013). Moreover, the combination therapy was less effective compared to (177)Lu-DOTATATE-only. In the current st...

2011
Anu Autio Tiina Henttinen Henri J Sipilä Sirpa Jalkanen Anne Roivainen

BACKGROUND Vascular adhesion protein-1 (VAP-1) is an adhesion molecule that plays a key role in recruiting leucocytes into sites of inflammation. We have previously shown that 68Gallium-labelled VAP-1-targeting peptide (68Ga-DOTAVAP-P1) is a positron emission tomography (PET) imaging agent, capable of visualising inflammation in rats, but disadvantaged by its short metabolic half-life and rapid...

2013
Iina Laitinen Johannes Notni Karolin Pohle Martina Rudelius Eliane Farrell Stephan G Nekolla Gjermund Henriksen Stefanie Neubauer Horst Kessler Hans-Jürgen Wester Markus Schwaiger

BACKGROUND Expression of αvβ3 integrin is increased after myocardial infarction as part of the repair process. Increased expression of αvβ3 has been shown by molecular imaging with 18F-galacto-RGD in a rat model. The 68Ga-labelled RGD compounds 68Ga-NODAGA-RGD and 68Ga-TRAP(RGD)3 have high specificity and affinity, and may therefore serve as alternatives of 18F-galacto-RGD for integrin imaging....

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