نتایج جستجو برای: pet protocol

تعداد نتایج: 302524  

2017
Nicholas P. Lao-Kaim Paola Piccini Yen F. Tai

PURPOSE OF REVIEW The purpose of this review was to review the imaging, particularly positron emission tomography (PET), findings in neurorestoration studies in movement disorders, with specific focus on neural transplantation in Parkinson's disease (PD) and Huntington's disease (HD). RECENT FINDINGS PET findings in PD transplantation studies have shown that graft survival as reflected by inc...

Journal: :Ai zheng = Aizheng = Chinese journal of cancer 2008
Xiao-Ping Lin Chong Zhao Ming-Yuan Chen Wei Fan Xu Zhang Sheng-Fang Zhi Pei-Yan Liang

BACKGROUND & OBJECTIVE Because (18)F-FDG PET/CT can display cancer lesion morphology, size and the relatinship of the cancer lesion to adjacent tissues, it is used in the diagnosis and classification of nasopharyngeal carcinoma (NPC). This study was to explore the application value of (18)F-FDG PET/CT in TNM staging by comparing the performance of MRI and PET/CT together with pathological resul...

Journal: :American journal of nuclear medicine and molecular imaging 2015
Nicolas A Karakatsanis Eleni Fokou Charalampos Tsoumpas

Positron emission tomography (PET) is widely used nowadays for tumor staging and therapy response in the clinic. However, average PET radiation exposure has increased due to higher PET utilization. This study aims to review state-of-the-art PET tracer dosage optimization methods after accounting for the effects of human body attenuation and scan protocol parameters on the counting rate. In part...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2005
Claudia Brogsitter Thomas Grüning Reiner Weise Peter Wielepp Oliver Lindner Reiner Körfer Wolfgang Burchert

UNLABELLED (18)F-FDG PET is an important diagnostic tool for detecting myocardial viability in patients with coronary artery disease. In combination with perfusion scanning, (18)F-FDG PET allows differentiation between reversibly and irreversibly damaged myocardium and selection of patients likely to benefit from revascularization. Viability PET is usually performed in two-dimensional (2D) mode...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2012
Axel Martinez-Möller Matthias Eiber Stephan G Nekolla Michael Souvatzoglou Alexander Drzezga Sibylle Ziegler Ernst J Rummeny Markus Schwaiger Ambros J Beer

Integrated PET/MRI systems open exciting possibilities for clinical and research applications. However, compared with PET/CT, PET/MRI is a complex technique resulting in new problems and challenges, especially regarding workflow, scan protocols, and data analysis. This complexity applies in particular to examinations in oncology with partial- or whole-body coverage extending over several bed po...

2013
Dan J. Kadrmas John M. Hoffman

Positron emission tomography (PET) can image a wide variety of functional and physiological parameters in vivo using different radiotracers. As more is learned about the molecular basis for disease and treatment, the potential value of molecular imaging for characterizing and monitoring disease status has increased. Characterizing multiple aspects of tumor physiology by imaging multiple PET tra...

Journal: :Revista espanola de enfermedades digestivas : organo oficial de la Sociedad Espanola de Patologia Digestiva 2012
Eulalia Valls-Ferrusola J R García-Garzón Ana Ponce-López Marina Soler-Peter Silvia Fuertes-Cabero Merce Moragas-Solanes Eduard Riera-Gil Ignasi Carrió-Gasset Francisco Lomeña-Caballero

BACKGROUND AND AIM currently it is recognized the usefulness of 18F-FDG PET in assessing response to therapy with imatinib (Gleevec®) in the gastrointestinal tract sarcomas (GIST). To facilitate the follow-up of these studies is important to know the patterns of metastatic spread. The aim of this paper is to describe patterns observed in the 18F-FDG PET/CT. METHOD retrospective study included...

2014
Hiroyoshi Fukukita Kazufumi Suzuki Keiichi Matsumoto Takashi Terauchi Hiromitsu Daisaki Yasuhiko Ikari Naoki Shimada Michio Senda

This synopsis outlines the Japanese guideline Version 2.0 for the data acquisition protocol of oncology FDG-PET/CT scans that was created by a joint task force of the Japanese Society of Nuclear Medicine Technology, the Japanese Society of Nuclear Medicine and the Japanese Council of PET Imaging, and was published in Kakuigaku-Gijutsu 2013; 33:377-420 in Japanese. The guideline aims at standard...

2017
Roya Sharifpour Pardis Ghafarian Mehrdad Bakhshayesh-Karam Hamidreza Jamaati Mohammad Reza Ay

Background The most important advantage of positron emission tomography/computed tomography (PET/CT) imaging is its capability of quantitative analysis. The aim of the current study was to choose the proper standardized uptake value (SUV) threshold, when the time-of-flight (TOF) and point spread function (PSF) were used for respiratory artifact reduction in the liver dome in a new-generation PE...

Journal: :AJR. American journal of roentgenology 2013
Elena Tonkopi Andrew A Ross Anita MacDonald

OBJECTIVE. The objective of this study was to optimize CT protocols for whole-body PET/CT by reducing radiation dose while minimizing effects on image quality. MATERIALS AND METHODS. Before protocol optimization, a survey of 140 consecutive patients was conducted to establish the baseline dose from a whole-body PET/CT examination. Another sample of 100 patients was surveyed to evaluate the redu...

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