نتایج جستجو برای: tumor uptake

تعداد نتایج: 549170  

2013
Bing Bai James Bading Peter S Conti

Positron emission tomography (PET) is used extensively in clinical oncology for tumor detection, staging and therapy response assessment. Quantitative measurements of tumor uptake, usually in the form of standardized uptake values (SUVs), have enhanced or replaced qualitative interpretation. In this paper we review the current status of tumor quantification methods and their applications to cli...

Novel biodegradable Poly (L-lactic acid) (PLLA) microspheres containing ytterbium were designed for intra-tumoral radiotherapy, especially for radioembolization. 175Yb possess both therapeutic beta and diagnostic gamma radiations. In this work, process to make ready radiomicrospheres 175Yb(acac)3-loaded PLLA for more consideration has been investigated. The radiomicrospheres were prepared with ...

Novel biodegradable Poly (L-lactic acid) (PLLA) microspheres containing ytterbium were designed for intra-tumoral radiotherapy, especially for radioembolization. 175Yb possess both therapeutic beta and diagnostic gamma radiations. In this work, process to make ready radiomicrospheres 175Yb(acac)3-loaded PLLA for more consideration has been investigated. The radiomicrospheres were prepared with ...

Journal: :American Journal of Roentgenology 1986

2014
Antti Silvoniemi Jonna Silén Sarita Forsback Eliisa Löyttyniemi Aleksi R Schrey Olof Solin Reidar Grénman Heikki Minn Tove J Grönroos

BACKGROUND Tumor hypoxia is linked to invasion and metastasis but whether this associates with tumor growth rate is not well understood. We aimed to study the relationship between hypoxia evaluated with the positron emission tomography (PET) tracer [(18)F]EF5 and tumor growth. Our second goal was to assess the variability in the uptake of [(18)F]EF5 in tumor between two scans. METHODS Four hu...

Journal: :iranian journal of medical physics 0
mojtaba salouti asistant professor, biology dept., faculty of sciences, islamic azad university, zanjan branch, zanjan, iran hossein rajabi associate professor, medical physics dept., faculty of medical sciences, tarbiat modarres university, tehran, iran mohammad hossein babaei associate professor, radioisotope of dept., nuclear research center, atomic energy organization of iran, tehran, iran

introduction: biodistribution study in animal models bearing tumors is one of the most important procedures in evaluation of fractional uptake of radiopharmaceuticals in the tumor and non-tumor organs. the aim of this study was to develop a new software-based method to determine activities that accumulate in the main organs as well as the tumor based on scintigraphy images, thereby obviating th...

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