Results 41 to 50 of about 263,774 (212)

Importance of fluorine 18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) in detection of post-thyroidectomy recurrence in differentiated thyroid cancer with negative radio-isotope iodine scan, yet, elevated serum thyroglobulin level

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2022
Background Thyroid cancer considered the 6th common cancer in female and represents approximately 1% of all cancers. Thyroid cancer is generally characterized by good prognosis, long term survival and low aggressiveness. Its prognosis is related to tumor
Amir Fathy Henfy Younis   +2 more
doaj   +1 more source

High quality low-dose SPECT reconstruction using CGAN-based transformer network with geometric tight framelet

open access: yesFrontiers in Physics, 2023
Single-photon emission computed tomography (SPECT) is a widely used diagnostic tool, but radioactive radiation during imaging poses potential health risks to subjects. Accurate low-dose single-photon emission computed tomography reconstruction is crucial
Zengguo Liang   +4 more
doaj   +1 more source

Quaternion representation and symplectic spin tomography [PDF]

open access: yesJ. Russ. Laser Res. 34, 477 (2013), 2013
Quantum tomography for continuous variables is based on the symplectic transformation group acting in the phase space. A particular case of symplectic tomography is optical tomography related to the action of a special orthogonal group. In the tomographic description of spin states, the connection between special unitary and special orthogonal groups ...
arxiv   +1 more source

Modelling and simulation of magnetic induction in magnetic particle imaging system [PDF]

open access: yes, 2020
In the last century, tomographic imaging has become an essential tool for disease diagnosis. There are several dominant tomographic imaging methods used for medical application such as computed tomography (CT), magnetic resonance imaging (MRI), positron ...
Birahim, Muhamad Fikri Shahkhirin   +2 more
core  

Pulmonary intravascular lymphoma diagnosed by 18-fluorodeoxyglucose positron emission tomography-guided transbronchial lung biopsy in a man with long-term survival: a case report [PDF]

open access: yes, 2011
Introduction 18-Fluorodeoxyglucose positron emission tomography can detect the pulmonary involvement of intravascular lymphoma that presents no abnormality in a computed tomography scan.
A Aouba   +23 more
core   +3 more sources

Comparative overwiew of brain perfusion imaging techniques [PDF]

open access: yes, 2005
Background and Purpose - Numerous imaging techniques have been developed and applied to evaluate brain hemodynamics. Among these are positron emission tomography, single photon emission computed tomography, Xenon-enhanced computed tomography, dynamic ...
Barbier, E   +14 more
core   +4 more sources

Biosystems Study of the Molecular Networks Underlying Hippocampal Aging Progression and Anti-aging Treatment in Mice

open access: yesFrontiers in Aging Neuroscience, 2017
Aging progression is a process that an individual encounters as they become older, and usually results from a series of normal physiological changes over time.
Jiao Wang   +10 more
doaj   +1 more source

Quantum Tomography twenty years later [PDF]

open access: yesPhys. Scripta, 90, 074031 (17 pp) (2015), 2015
A sample of some relevant developments that have taken place during the last twenty years in classical and quantum tomography are displayed. We will present a general conceptual framework that provides a simple unifying mathematical picture for all of them and, as an effective use of it, three subjects have been chosen that offer a wide panorama of the
arxiv   +1 more source

LncRNAs has been identified as regulators of Myeloid-derived suppressor cells in lung cancer

open access: yesFrontiers in Immunology, 2023
Lung tumours are widespread pathological conditions that attract much attention due to their high incidence of death. The immune system contributes to the progression of these diseases, especially non-small cell lung cancer, resulting in the fast ...
Yifan Liu   +10 more
doaj   +1 more source

INTRAOSSEOUS HAEMANGIOMAS ON HYBRID IMAGING: A PICTORIAL REVIEW [PDF]

open access: yes, 2016
Osseous haemangiomas are benign skeletal tumours, usually identi ed as incidental ndings on different imaging modalities. Bone scan is the most frequent radionuclide procedure performed as metastatic workup in patients with various malignancies.
Bashir, Humayun   +3 more
core   +1 more source

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