Results 11 to 20 of about 13,148 (240)
Single-photon emission computed tomography in neurotherapeutics [PDF]
NeuroRX, 2005 The measurement of regional cerebral blood flow (rCBF) by single-photon emission computed tomography (SPECT) is a powerful clinical and research tool. There are several clinical applications now documented, a substantial number under active investigation, and a larger number yet to be studied.
openaire +2 more sources
Universal quantum data compression via gentle tomography [PDF]
Phys. Rev. A 73, 032336 (2006), 2004 Quantum state tomography--the practice of estimating a quantum state by performing measurements on it--is useful in a variety of contexts. We introduce "gentle tomography" as a version of tomography that preserves the measured quantum data. As an application of gentle tomography, we describe a simple polynomial-time method for universal source coding.
arxiv +1 more source
Shadow process tomography of quantum channels [PDF]
Phys. Rev. A 107, 042403 (2023), 2021 Quantum process tomography is a critical capability for building quantum computers, enabling quantum networks, and understanding quantum sensors. Like quantum state tomography, the process tomography of an arbitrary quantum channel requires a number of measurements that scale exponentially in the number of quantum bits affected.
arxiv +1 more source
Scientific Data, 2022 Measurement(s) Calibration Factor • coefficient of variation • Texture Descriptor Technology Type(s) Single Photon Emission Computed Tomography • Image ...
Emilio Mezzenga +4 more
doaj +1 more source
Quantum tomography with wavelet transform in Banach space on Homogeneous space [PDF]
Eeuopean Physical Journal B, 60, 193-201(2007), 2008 The intimate connection between the Banach space wavelet reconstruction method on homogeneous spaces with both singular and nonsingular vacuum vectors, and some of well known quantum tomographies, such as: Moyal-representation for a spin, discrete phase space tomography, tomography of a free particle, Homodyne tomography, phase space tomography and SU ...
arxiv +1 more source
SAGE Open Medicine, 2016 Objectives: Left ventricular ejection fraction can be measured by a variety of invasive and non-invasive cardiac techniques. This study assesses the relation of three diagnostic modalities to each other in the measurement of left ventricular ejection ...
Nadish Garg +5 more
doaj +1 more source
111 In-pentetreotide SPECT CT Value in Follow-up of Patients with Neuro-Endocrine Tumors
Oman Medical Journal, 2014 Carcinoid tumors are relatively rare and can occur in the thorax, abdomen, or pelvis. Functional imaging in the form of Indium-111 pentetreotide scanning is widely used for identification of these tumors and it exploits the fact that the vast majority of
Badriya Al-Suqri
doaj +1 more source
Cell Transplantation, 2019 Intravoxel incoherent motion has received extensive attention in brain studies for its potential as a non-invasive magnetic resonance perfusion method. However, studies on intravoxel incoherent motion imaging and crossed cerebellar diaschisis detection ...
Juan Wang +9 more
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Quantum Tomography twenty years later [PDF]
Phys. 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
INTRAOSSEOUS HAEMANGIOMAS ON HYBRID IMAGING: A PICTORIAL REVIEW
Journal of Cancer and Allied Specialties, 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.
Mairah Razi +3 more
doaj +1 more source