Results 21 to 30 of about 95,958 (315)
EJNMMI Radiopharmacy and Chemistry, 2016 Background αVβ3, αVβ5 and α5β1 integrins are known to be involved in carcinogenesis and are overexpressed in many types of tumours compared to healthy tissues; thereby they have been selected as promising therapeutic targets. Positron emission tomography
Didier J. Colin +3 more
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Drug Delivery, 2021 Radiotherapy (RT) is a frequently used means in clinical tumor treatment. The outcome of RT varies, however, to a great extent, due to RT resistance or intolerable dose, which might be resolved by the development of radio-sensitizing strategies. Here, we
Zhehong Zhu +9 more
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IEEE Transactions on Medical Imaging, 2008 Adaptive imaging systems alter their data-acquisition configuration or protocol in response to the image information received. An adaptive pinhole single-photon emission computed tomography (SPECT) system might acquire an initial scout image to obtain preliminary information about the radiotracer distribution and then adjust the configuration or sizes ...
Harrison H, Barrett +6 more
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Distinct cerebral cortical perfusion patterns in idiopathic normal‐pressure hydrocephalus
Human Brain Mapping, Volume 44, Issue 1, Page 269-279, January 2023., 2023 The present study investigates cerebral blood flow (CBF) and cortical thickness using surface‐based analysis of early‐phase 18F‐florbetaben PET and MRI in patients with idiopathic normal‐pressure hydrocephalus (INPH). INPH patients had significantly increased CBF with a concomitant increase in cortical thickness in areas located in the high convexity ...
Kyunghun Kang +10 more
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EFECTO DE LOS PARÁMETROS DE ADQUISICIÓN EN IMÁGENES SPECTCEREBRALES: UN ESTUDIO SIMIND MONTECARLO
Anales (Asociación Física Argentina), 2023 In this work cerebral SPECT images were simulated using the SIMIND Monte Carlo code. The specific purpose was the detection of characteristic Alzheimer’s disease (EA) and Major Depression (DM) lesions in simulated brain images, modeling the data ...
J. Sanchez, C. Y. Chain, L. H. Illanes
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Journal of Nuclear Medicine, 2008 In view of the commercial success of integrated PET/CT scanners, there is an increasing interest in comparable SPECT/CT systems. SPECT in combination with CT enables a direct correlation of anatomic information and functional information, resulting in better localization and definition of scintigraphic findings.
Andreas K, Buck +10 more
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Cross-domain Iterative Network for Simultaneous Denoising, Limited-angle Reconstruction, and Attenuation Correction of Low-dose Cardiac SPECT [PDF]
arXiv, 2023 Single-Photon Emission Computed Tomography (SPECT) is widely applied for the diagnosis of ischemic heart diseases. Low-dose (LD) SPECT aims to minimize radiation exposure but leads to increased image noise. Limited-angle (LA) SPECT enables faster scanning and reduced hardware costs but results in lower reconstruction accuracy.
arxiv
PET and SPECT in NeurologyPET and SPECT in PsychiatryPET and SPECT of Neurobiological Systems [PDF]
Journal of Nuclear Medicine, 2015 R.A.J.O. Diercks, A. Otte, E.F.J. de Vries, and A. van Waarde, eds. New York, NY: Springer, 2014, 818–1,112 pages, $399 each There is a series of 3 new books on PET and SPECT that is marvelous in terms of editorial coordination and comprehensiveness of content.
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Determination of the Energy Windows for the Triple Energy Window Scatter Correction Method in Gadolinium-159 Single Photon Emission Computed Tomography Using Monte Carlo Simulation [PDF]
Iranian Journal of Medical Physics, 2019 Introduction: In radionuclide imaging, object scatter is one of the major factors leading to image quality degradation. Therefore, the correction of scattered photons might have a great impact on improving the image quality.
Youssef Bouzekraoui +3 more
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Partial volume effect in SPECT & PET imaging and impact on radionuclide dosimetry estimates [PDF]
Asia Oceania Journal of Nuclear Medicine and Biology, 2023 Objective(s): The spatial resolution of emission tomographic imaging systems can lead to a significant underestimation in the apparent radioactivity concentration in objects of size comparable to the resolution volume of the system. The aim of this study
Harry Marquis +2 more
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