Results 1 to 10 of about 13,148 (240)

Positron emission computed tomography/single photon emission computed tomography in Parkinson disease

open access: yesChinese Medical Journal, 2020
. Parkinson disease (PD) is the second-most common neurodegenerative disorder. Its main pathological mechanism is the selective degeneration and deletion of dopaminergic neurons in the dense part of the substantia nigra and the damage of dopaminergic ...
Nian-Ting Yao   +9 more
doaj   +3 more sources

Precision low-dose brachytherapy of prostate cancer under PSMA-receptor molecular visualization [PDF]

open access: yesDigital Diagnostics, 2023
Brachytherapy with implantation of micro sources based on isotope 125I is a preferred treatment for localized prostate cancer without signs of germination of the gland capsule and in the absence of signs of metastases (stage cT1-T23aN0M0).
Pavel V. Sviridov   +7 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

Optimising shadow tomography with generalised measurements [PDF]

open access: yesPhys. Rev. Lett. 129, 220502 (2022), 2022
Advances in quantum technology require scalable techniques to efficiently extract information from a quantum system, such as expectation values of observables or its entropy. Traditional tomography is limited to a handful of qubits and shadow tomography has been suggested as a scalable replacement for larger systems. Shadow tomography is conventionally
arxiv   +1 more source

Splenosis Mimicking Peritoneal Seeding of Advanced Colon Cancer Can Be Identified by Spleen SPECT/CT and FDG PET/CT

open access: yesDiagnostics, 2021
This case report demonstrates that Tc-99m labeled heat-damaged red blood cell single-photon emission computed tomography/computed tomography (spleen SPECT/CT) and F-18 fluorodeoxyglucose positron emission tomography/CT (FDG PET/CT) could noninvasively ...
Ji Young Lee, Hee-Sung Song, Jimin Han
doaj   +1 more source

Role of 11C-Methionine PET/CT in 99mTc-Sestamibi-Negative Parathyroid Adenoma: A Case Report

open access: yesDiagnostics, 2021
We report a case of 16-year-old female primary hyperparathyroidism patient who underwent cervical ultrasonography and 99mTc-sestamibi single photon emission computed tomography/computed tomography, both of which were negative for parathyroid adenoma ...
Jang Yoo, Miju Cheon
doaj   +1 more source

Radiotracers for the Central Serotoninergic System

open access: yesPharmaceuticals, 2022
This review lists the most important radiotracers described so far for imaging the central serotoninergic system. Single-photon emission computed tomography and positron emission tomography radiotracers are reviewed and critically discussed for each ...
Reynald Mangeant   +3 more
doaj   +1 more source

Application of Perfusion Single Photon Emission Computed Tomography of the Myocardium in Pain-Free Myocardial Ischemia

open access: yesАрхивъ внутренней медицины, 2020
This literature review provides data on the use of single-photon emission computed tomography of myocardium in silent myocardial ischemia. The presence of silent myocardial ischemia increases the risk of cardiovascular complications several times and may
A. I. Abdrahmanova   +2 more
doaj   +1 more source

Preoperative nodal staging of non-small cell lung cancer using 99mTc-sestamibi spect/ct imaging

open access: yesClinics, 2011
OBJECTIVES: The proper nodal staging of non-small cell lung cancer is important for choosing the best treatment modality. Although computed tomography remains the first-line imaging test for the primary staging of lung cancer, its limitations for ...
Juliana Muniz Miziara   +7 more
doaj   +1 more source

Finite quantum tomography via semidefinite programming [PDF]

open access: yesInternational Journal of Theoretical Physics, Vol. 46, No. 6, June 2007, page 1471, 2007
Using the the convex semidefinite programming method and superoperator formalism we obtain the finite quantum tomography of some mixed quantum states such as: qudit tomography, N-qubit tomography, phase tomography and coherent spin state tomography, where that obtained results are in agreement with those of References \cite{schack,Pegg,Barnett,Buzek ...
arxiv   +1 more source

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