Results 31 to 40 of about 95,958 (315)
Deep learning-based attenuation correction in the image domain for myocardial perfusion SPECT imaging [PDF]
arXiv, 2021 Objective: In this work, we set out to investigate the accuracy of direct attenuation correction (AC) in the image domain for the myocardial perfusion SPECT imaging (MPI-SPECT) using two residual (ResNet) and UNet deep convolutional neural networks. Methods: The MPI-SPECT 99mTc-sestamibi images of 99 participants were retrospectively examined. UNet and
arxiv
Small-animal SPECT and SPECT/CT: application in cardiovascular research [PDF]
European Journal of Nuclear Medicine and Molecular Imaging, 2010 Preclinical cardiovascular research using noninvasive radionuclide and hybrid imaging systems has been extensively developed in recent years. Single photon emission computed tomography (SPECT) is based on the molecular tracer principle and is an established tool in noninvasive imaging.
Hendrikus H. Boersma +10 more
openaire +6 more sources
Going against the norm: validation of a novel alternative to brain SPECT normative datasets
Exploration of Medicine, 2020 Aim: Quantitative analysis of brain single photon emission computed tomography (SPECT) perfusion imaging is dependent on normative datasets that are challenging to produce.
Lindsay M. Quandt, Cyrus A. Raji
doaj +1 more source
Planar 99mTc-PSMA Imaging of Prostate Cancer in a Low-Resource Setting: A Series Report
World Journal of Nuclear Medicine, 2022 Objective Technetium-99m labeled prostate-specific membrane antigen (PSMA) single-photon emission computed tomography/computed tomography (SPECT/CT) is a suitable alternative to prostate-specific membrane antigen-positron emission tomography (PSMA-PET ...
A.T. Orunmuyi +4 more
doaj +1 more source
Trends in Psychiatry and Psychotherapy, 2021 Introduction Non-invasive brain stimulation (NIBS) as monotherapy has been increasingly used to enhance the activity of brain networks. However, it is unclear whether a combination of distinct NIBS approaches could enhance prefrontal cortical (PFC ...
Laís B. Razza +7 more
doaj +1 more source
Dual-Branch Squeeze-Fusion-Excitation Module for Cross-Modality Registration of Cardiac SPECT and CT [PDF]
arXiv, 2022 Single-photon emission computed tomography (SPECT) is a widely applied imaging approach for diagnosis of coronary artery diseases. Attenuation maps (u-maps) derived from computed tomography (CT) are utilized for attenuation correction (AC) to improve diagnostic accuracy of cardiac SPECT.
arxiv
Caspian Journal of Internal Medicine, 2021 Background: In this research, we aimed to survey the added value of single photon emission computed tomography (SPECT) in comparison with planar whole body bone scan to visualize bone metastatic lesions in patients with breast cancer. Methods: A total of
Seyed Mohammad Abedi +2 more
doaj
A practical method for assessing quantitative scanner accuracy with long-lived radionuclides: The ARTnet insert [PDF]
Asia Oceania Journal of Nuclear Medicine and BiologyObjective(s): To address the problem of using large volumes of long-lived radionuclides in test phantoms to check calibration accuracy of PET and SPECT systems we have developed a test object which (a) contains less radioactivity, (b) has a low total ...
Dale Bailey +2 more
doaj +1 more source
A SPECT camera for combined MRI and SPECT for small animals [PDF]
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2011 We describe an MR-compatible SPECT camera for small animals. The SPECT camera system can be inserted into the bore of a state-of-the-art MRI system and allows researchers to acquire tomographic images from a mouse in-vivo with the MRI and the SPECT acquiring simultaneously. The SPECT system provides functional information, while MRI provides anatomical
Benjamin M. W. Tsui +5 more
openaire +3 more sources
The Current Status of SPECT or SPECT/CT in South Korea [PDF]
Nuclear Medicine and Molecular Imaging, 2016 The first step to nuclear medicine in Korea started with introduction of the gamma camera in 1969. Although planar images with the gamma camera give important functional information, they have the limitations that result from 2-dimensional images. Single-photon emission computed tomography (SPECT) due to its 3-dimensional image acquisition is superior ...
Yong-An Chung +2 more
openaire +3 more sources