Sun, Tao Wu, Yaping Wei, Wei Fu, Fangfang Meng, Nan Chen, Hongzhao Li, Xiaochen Bai, Yan Wang, Zhenguo Ding, Jie
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Published in
EJNMMI physics
The total-body positron emission tomography (PET) scanner provides an unprecedented opportunity to scan the whole body simultaneously, thanks to its long axial field of view and ultrahigh temporal resolution. To fully utilize this potential in clinical settings, a dynamic scan would be necessary to obtain the desired kinetic information from scan d...
Sobotka, Daniel Ebner, Michael Schwartz, Ernst Nenning, Karl-Heinz Taymourtash, Athena Vercauteren, Tom Ourselin, Sebastien Kasprian, Gregor Prayer, Daniela Langs, Georg
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Published in
NeuroImage
Motion correction is an essential preprocessing step in functional Magnetic Resonance Imaging (fMRI) of the fetal brain with the aim to remove artifacts caused by fetal movement and maternal breathing and consequently to suppress erroneous signal correlations. Current motion correction approaches for fetal fMRI choose a single 3D volume from a spec...
Sobotka, Daniel; Ebner, Michael; Schwartz, Ernst; Nenning, Karl-Heinz; Taymourtash, Athena; Vercauteren, Tom; 114996; Ourselin, Sebastien; Kasprian, Gregor; Prayer, Daniela; Langs, Georg;
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Motion correction is an essential preprocessing step in functional Magnetic Resonance Imaging (fMRI) of the fetal brain with the aim to remove artifacts caused by fetal movement and maternal breathing and consequently to suppress erroneous signal correlations. Current motion correction approaches for fetal fMRI choose a single 3D volume from a spec...
Otaki, Yuka Van Kriekinge, Serge D Wei, Chih-Chun Kavanagh, Paul Singh, Ananya Parekh, Tejas Di Carli, Marcelo Maddahi, Jamshid Sitek, Arkadiusz Buckley, Christopher
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Published in
European journal of nuclear medicine and molecular imaging
We sought to evaluate the diagnostic performance for coronary artery disease (CAD) of myocardial blood flow (MBF) quantification with 18F-flurpiridaz PET using motion correction (MC) and residual activity correction (RAC). In total, 231 patients undergoing same-day pharmacologic rest and stress 18F-flurpiridaz PET from Phase III Flurpiridaz trial (...
Tzolos, Evangelos Lassen, Martin Lyngby Pan, Tinsu Kwiecinski, Jacek Cadet, Sebastien Dey, Damini Dweck, Marc R Newby, David E Berman, Daniel Slomka, Piotr
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Published in
Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
To evaluate the impact of respiratory-averaged computed tomography attenuation correction (RACTAC) compared to standard single-phase computed tomography attenuation correction (CTAC) map, on the quantitative measures of coronary atherosclerotic lesions of 18F-sodium fluoride (18F-NaF) uptake in hybrid positron emission tomography and computed tomog...
Revilla, Enette Mae Gallezot, Jean-Dominique Naganawa, Mika Toyonaga, Takuya Fontaine, Kathryn Mulnix, Tim Onofrey, John A. Carson, Richard E. Lu, Yihuan
Published in
NeuroImage
Head motion during PET scans causes image quality degradation, decreased concentration in regions with high uptake and incorrect outcome measures from kinetic analysis of dynamic datasets. Previously, we proposed a data-driven method, center of tracer distribution (COD), to detect head motion without an external motion tracking device. There, motio...
Einspänner, Eric Jochimsen, Thies H. Harries, Johanna Melzer, Andreas Unger, Michael Brown, Richard Thielemans, Kris Sabri, Osama Sattler, Bernhard
Published in
EJNMMI Physics
Background Due to comparatively long measurement times in simultaneous positron emission tomography and magnetic resonance (PET/MR) imaging, patient movement during the measurement can be challenging. This leads to artifacts which have a negative impact on the visual assessment and quantitative validity of the image data and, in the worst case, can...
Tzolos, Evangelos Kwiecinski, Jacek Lassen, Martin Lyngby Cadet, Sebastien Adamson, Philip D Moss, Alastair J Joshi, Nikhil Williams, Michelle C van Beek, Edwin J R Dey, Damini
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Published in
Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
We aimed to establish the observer repeatability and interscan reproducibility of coronary 18F-sodium-fluoride positron emission tomography (PET) uptake using a novel semi-automated approach, coronary microcalcification activity (CMA). Patients with multivessel coronary artery disease underwent repeated hybrid PET and computed tomography angiograph...
Lassen, Martin Lyngby Tzolos, Evangelos Massera, Daniele Cadet, Sebastien Bing, Rong Kwiecinski, Jacek Dey, Damini Berman, Daniel S. Dweck, Marc R. Newby, David E.
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Published in
EJNMMI Physics
BackgroundCurrent 18F-NaF assessments of aortic valve microcalcification using 18F-NaF PET/CT are based on evaluations of end-diastolic or cardiac motion-corrected (ECG-MC) images, which are affected by both patient and respiratory motion. We aimed to test the impact of employing a triple motion correction technique (3 × MC), including cardiorespir...
Wang, Yiqian
The retina, the light sensitive tissue lining the interior of the eye, is the only part of the central nervous system (CNS) that can be imaged at micron resolution in vivo. Retinal diseases including age-related macular degeneration, diabetes retinopathy, and vascular occlusions are important causes of vision loss and have systemic implications for...
