Results 21 to 30 of about 216,080 (283)

Positron-emission tomography [PDF]

IEEE Signal Processing Magazine, 1997
We review positron-emission tomography (PET), which has inherent advantages that avoid the shortcomings of other nuclear medicine imaging methods. PET image reconstruction methods with origins in signal and image processing are discussed, including the potential problems of these methods. A summary of statistical image reconstruction methods, which can
Ollinger, John M., Fessler, Jeffrey A.
openaire   +3 more sources

A case of crossed cerebellar diaschisis on follow-up positron emission tomography/computed tomography with (18F) fluoro-D-glucose after treatment for glioblastoma

World Journal of Nuclear Medicine, 2019
Crossed cerebellar diaschisis (CCD) represents the reduction of blood flow, metabolism, and oxygen consumption in the cerebellar hemisphere contralateral to a cerebral focal lesion.
Dimitrios Priftakis, Phivi Rondogianni, Ioannis Datseris   +2 more
doaj   +1 more source

PET Imaging of Synaptic Density: Challenges and Opportunities of Synaptic Vesicle Glycoprotein 2A PET in Small Animal Imaging

Frontiers in Neuroscience, 2022
The development of novel PET imaging agents for synaptic vesicle glycoprotein 2A (SV2A) allowed for the in vivo detection of synaptic density changes, which are correlated with the progression and severity of a variety of neuropsychiatric diseases. While
Takuya Toyonaga, Arman Fesharaki-Zadeh, Arman Fesharaki-Zadeh, Stephen M. Strittmatter, Stephen M. Strittmatter, Richard E. Carson, Zhengxin Cai   +6 more
doaj   +1 more source

Organ-Specific Positron Emission Tomography Scanners for Breast Imaging: Comparison between the Performances of Prior and Novel Models

Diagnostics, 2023
The performances of photomultiplier tube (PMT)-based dedicated breast positron emission tomography (PET) and silicon photomultiplier tube (SiPM)-based time-of-flight (TOF) PET, which is applicable not only to breast imaging but also to head imaging, were
Yoko Satoh, Kohei Hanaoka, Chihiro Ikegawa, Masamichi Imai, Shota Watanabe, Daisuke Morimoto-Ishikawa, Hiroshi Onishi, Toshikazu Ito, Yoshifumi Komoike, Kazunari Ishii   +9 more
doaj   +1 more source

Reliability of gradient-based segmentation for measuring metabolic parameters influenced by uptake time on 18F-PSMA-1007 PET/CT for prostate cancer

Frontiers in Oncology, 2022
PurposeTo determine an optimal setting for functional contouring and quantification of prostate cancer lesions with minimal variation by evaluating metabolic parameters on 18F-PSMA-1007 PET/CT measured by threshold-based and gradient-based methods under ...
Yu Ching Lau, Yu Ching Lau, Sirong Chen, Chi Lai Ho, Jing Cai   +4 more
doaj   +1 more source

Radiochemistry for positron emission tomography

Nature Communications, 2023
AbstractPositron emission tomography (PET) constitutes a functional imaging technique that is harnessed to probe biological processes in vivo. PET imaging has been used to diagnose and monitor the progression of diseases, as well as to facilitate drug development efforts at both preclinical and clinical stages.
Jian Rong, Achi Haider, Troels E. Jeppesen, Lee Josephson, Steven H. Liang   +4 more
openaire   +3 more sources

Identification of Stage IIIC/IV EGFR-Mutated Non-Small Cell Lung Cancer Populations Sensitive to Targeted Therapy Based on a PET/CT Radiomics Risk Model

Frontiers in Oncology, 2021
ObjectivesThis project aimed to construct an individualized PET/CT prognostic biomarker to accurately quantify the progression risk of patients with stage IIIC-IV epidermal growth factor receptor (EGFR)-mutated Non-small cell lung cancer (NSCLC) after ...
Dan Shao, Dongyang Du, Haiping Liu, Jieqin Lv, You Cheng, Hao Zhang, Wenbing Lv, Shuxia Wang, Lijun Lu   +8 more
doaj   +1 more source

Tic Reduction Following Heat-Induced Dehydration in Gilles de la Tourette Syndrome (TS)

Biology and Life Sciences Forum, 2022
A 24-year-old man with of Gilles de la Tourette (TS) syndrome experienced a marked remission of 2 years after heat-induced dehydration. Further investigation of the effects of heat and dehydration on TS may be useful.
Ashley B. Durbin, Matthew R. Rodgers, James Robert Brašić   +2 more
doaj   +1 more source

Positron Emission Tomography

, 2016
Positron emission tomography (PET) is a minimally invasive imaging procedure with a wide range of clinical and research applications. PET allows for the three-dimensional mapping of administered positron-emitting radiopharmaceuticals such as (18)F-fluorodeoxyglucose (for imaging glucose metabolism).
Katherine Lameka, Michael D. Farwell, Masanori Ichise   +2 more
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Perfusion CT and PET with 18F–FDG and 18F–FCh in the complex diagnosis of hepatocellular carcinoma

European Journal of Hybrid Imaging, 2017
Background The purpose of the study to evaluate possibilities of CT-perfusion and PET methods with 18F–FDG and 18F–fluorocholine in the complex diagnosis of hepatocellular carcinoma.
P. E. Tulin, M. B. Dolgushin, A. A. Odzharova, A. I. Mikhaylov, B. M. Medvedeva, S. V. Shiryaev, B. I. Dolgushin   +6 more
doaj   +1 more source