نتایج جستجو برای: pet protocol

تعداد نتایج: 302524  

2013
C. Schraml N. F. Schwenzer O. Sperling P. Aschoff M. P. Lichy M. Müller C. Brendle M. K. Werner C. D. Claussen C. Pfannenberg

PURPOSE In patients with a neuroendocrine tumour (NET), the extent of disease strongly influences the outcome and multidisciplinary therapeutic management. Thus, systematic analysis of the diagnostic performance of the existing staging modalities is necessary. The aim of this study was to compare the diagnostic performance of 2 whole-body imaging modalities, [(68)Ga]DOTATOC positron emission to...

2011
Matthew D Kelly Jerome M Declerck

BACKGROUND We propose a new methodology, reference Standardised Uptake Value (SUVref), for reducing the quantitative variation resulting from differences in reconstruction protocol. Such variation that is not directly addressed by the use of SUV or the recently proposed PERCIST can impede comparability between positron emission tomography (PET)/CT scans. METHODS SUVref applies a reconstructio...

Journal: :Revista latino-americana de enfermagem 2012
Reiley Reed Lilian Ferrer Natalia Villegas

The primary objective of this review is to synthesize the existing literature on the use of animal-assisted therapy and activity (AAT/A) as complementary treatment among people living with chronic disease and to discuss the possible application of this practice among children living with HIV. Relevant databases were searched between March 10 and April 11, 2011, using the words: animal assisted ...

Journal: :Molecular imaging and biology : MIB : the official publication of the Academy of Molecular Imaging 2004
Andreas Bockisch Thomas Beyer Gerald Antoch Lutz S Freudenberg Hilmar Kühl Jörg F Debatin Stefan P Müller

There has been a longstanding interest in fused images of anatomical information, such as that provided by computed tomography (CT) or magnetic resonance imaging (MRI) systems, with biological information obtainable by positron emission tomography (PET). The near-simultaneous data acquisition in a fixed combination of a PET and a CT scanner in a combined PET/CT imaging system minimizes spatial ...

Journal: :Medical physics 2013
Tao Sun Tung-Hsin Wu Shyh-Jen Wang Bang-Hung Yang Nien-Yun Wu Greta S P Mok

PURPOSE The temporal mismatch between PET and standard helical CT (HCT) causes substantial respiratory artifacts in PET reconstructed images when using HCT as the attenuation map. Previously we developed an interpolated average CT (IACT) method for attenuation correction (AC) and demonstrated its merits in simulations. In this study we aim to apply IACT in patients with thoracic lesions using a...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2009
Tatsuo Torizuka Yasuo Tanizaki Toshihiko Kanno Masami Futatsubashi Etsuji Yoshikawa Hiroyuki Okada Yasuomi Ouchi

UNLABELLED This study was designed to compare tumor (18)F-FDG uptake between a single 20-s acquisition of deep-inspiration breath-hold PET/CT and free-breathing PET/CT for lung cancer. METHODS Before the clinical study, a phantom study was performed to determine the optimum breath-hold time for the PET scan. We studied 47 patients with lung cancer who underwent free-breathing PET/CT with the ...

Journal: :Journal of applied physiology 2007
Jurgen A H R Claassen Rong Zhang Qi Fu Sarah Witkowski Benjamin D Levine

Clinical transcranial Doppler assessment of cerebral vasomotor reactivity (CVMR) uses linear regression of cerebral blood flow velocity (CBFV) vs. end-tidal CO(2) (Pet(CO(2))) under steady-state conditions. However, the cerebral blood flow (CBF)-Pet(CO(2)) relationship is nonlinear, even for moderate changes in CO(2). Moreover, CBF is increased by increases in arterial blood pressure (ABP) duri...

2017
Lucia Baratto Sonya Young Park Negin Hatami Guido Davidzon Shyam Srinivas Sanjiv Sam Gambhir Andrei Iagaru

PURPOSE To evaluate if the new Discovery Molecular Insights (DMI) PET/CT scanner provides equivalent results compared to the standard of care PET/CT scanners (GE Discovery 600 or GE Discovery 690) used in our clinic and to explore any possible differences in semi-quantitative measurements. METHODS The local Institutional Review Board approved the protocol and written informed consent was obta...

2016
Jacob Horsager Kirstine Bak-Fredslund Lars Peter Larsen Gerda Elisabeth Villadsen Trond Velde Bogsrud Michael Sørensen

BACKGROUND Positron emission tomography (PET) with the liver-specific galactose tracer 2-[(18)F]fluoro-2-deoxy-D-galactose ((18)F-FDGal) may improve diagnosis of hepatocellular carcinoma (HCC). The aim of this study was to test which of three different (18)F-FDGal PET protocols gives the highest tumour-to-background (T/B) ratio on PET images and thus better detection of HCC tumours. METHODS T...

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