نتایج جستجو برای: high resolution pet
تعداد نتایج: 2229984 فیلتر نتایج به سال:
MEDISIP, Department of Electronics and Information Systems, Ghent University, Belgium A potential design for a high-resolution, ultralow-dose multimodal PET insert for pediatric medicine is presented. Several new technologies are combined to develop a unique, mobile, CTand MRI-compatible PET system. The system is intended for diagnosis, staging, monitoring, and follow-up in the treatment of can...
A new detector design using pixelated NaI(Tl) crystals has been evaluated for use in positron emission tomography (PET). This detector uses 4 4 30 mm NaI(Tl) pixels coupled via a lightguide (1.4 cm thick) to an array of 39 mm diameter photomultiplier tubes (PMTs) in an Anger detector design. Our measurements show that the high light output of NaI(Tl) leads to a good discrimination of the 4 mm N...
GE Healthcare, USA In a functional PET/MR study, it is difficult to get good temporal resolution of activity distribution from PET images because of the need to image for a certain length of time to get sufficient count statistics (image SNR). Time-of-flight (TOF) reconstruction can be used to increase PET images SNR and therefore increase the temporal resolution. Five patients were injected wi...
A PET module that comprises a pair of compact, high-resolution and large-area detectors based on silicon photomultipliers (SiPM) was developed and evaluated. The detector’s effective area was 24 mm!24 mm. LYSO crystals measuring 1.9 mm!1.9 mm!10 mm and charge division circuit were employed to obtain high spatial resolution with relatively concise Front-end electronics (FEE). Initial results sho...
Abstract Quantitative imaging (i.e., providing not just an image but also the related data) guidance in proton radiation therapy to achieve and monitor precision of planned energy deposition field in-vivo (a.k.a. range verification) is one most under-invested aspects cancer treatment despite that it may dramatically enhance accuracy lower exposure toxicity improving entire outcome therapy. In t...
Institute of Neuroscience and Medicine-4, Forschungszentrum Juelich, Germany The Siemens 3T MR-BrainPET scanner allows us to simultaneously acquire high-resolution MR and PET images thus giving a strong asset for studies of the human brain. Meanwhile, the system is routinely used for MR-PET studies with a variety of radiotracers, e.g. F-FDG, F-FET, C-Raclopride, C-Flumazenil, O-Water. Based on ...
Recognition of epileptic focal point is the important diagnosis when screening the epilepsy patients for latent surgical cures. The accurate localization is challenging one because of the low spatial resolution images with more noisy data. Positron Emission Tomography (PET) has now replaced the issues and caring a high resolution. This paper focuses the research of automated localization of epi...
Advanced Functional Tumor Imaging and Precision Nuclear Medicine Enabled by Digital PET Technologies
The purpose of this article is to provide a brief overview of the background, basic principles, technological evolution, clinical capabilities, and future directions for functional tumor imaging as PET evolves from the conventional photomultiplier tube-based platform into a fully digital detector acquisition platform. The recent introduction of solid-state digital photon counting PET detector i...
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