Results 11 to 20 of about 491,319 (340)
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein +7 more
wiley +1 more source
Image quality improvement in low‐dose chest CT with deep learning image reconstruction
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Objectives To investigate the clinical utility of deep learning image reconstruction (DLIR) for improving image quality in low‐dose chest CT in comparison with 40% adaptive statistical iterative reconstruction‐Veo (ASiR‐V40%) algorithm. Methods This retrospective study included 86 patients who underwent low‐dose CT for lung cancer screening ...
Qian Tian +7 more
wiley +1 more source
Radial artery pressures compared with subclavian artery pressure during coronary artery surgery [PDF]
Cleveland Clinic Journal of Medicine, 1988 Radial artery and subclavian artery pressures were measured in nine men undergoing coronary artery surgery requiring cardiopulmonary bypass. Radial artery pressures were measured simultaneously through short (10.2 cm) and long (106.9 cm) tubing using two transducers in a branched tubing system.
John H. Petre +5 more
openaire +2 more sources
Classification of Pressure Gradient of Human Common Carotid Artery and Ascending Aorta on the Basis of Age and Gender [PDF]
International Journal of computer Applications, Volume 145, No.1,
July 2016, 2017 The current work is done to see which artery has more chance of having cardiovascular diseases by measuring value of pressure gradient in the common carotid artery (CCA) and ascending aorta according to age and gender. Pressure gradient is determined in the CCA and ascending aorta of presumed healthy volunteers, having age between 10 and 60 years.
arxiv +1 more source
New Microbes and New Infections, EarlyView., 2014 Abstract We describe a case of fungal keratitis due to Beauveria bassiana in a farmer with Fuchs' dystrophy, treated with amphotericin B. Surgery with penetrating keratoplasty was necessary to resolve the lesions. Susceptibility testing and molecular sequencing permitted the identification and treatment of this rare aetiological agent of invasive ...
M. Ligozzi +8 more
wiley +1 more source
Multiscale Mechanical Behavior of Large Arteries [PDF]
Encyclopedia of Biomedical Engineering, Elsevier, pp.180-202, 2019, 2019 The mechanical integrity of arteries is of prime importance, for a proper oxygen and nutrients delivery to all organs. To optimize their mechanical properties, healthy arteries exhibit a complex hierarchical microstructure which ensures a sufficient compliance at low stresses and which stiffens at higher stresses, preventing over-dilatation.
arxiv +1 more source
Arterial smooth muscle cell PKD2 (TRPP1) channels regulate systemic blood pressure
eLife, 2018 Systemic blood pressure is determined, in part, by arterial smooth muscle cells (myocytes). Several Transient Receptor Potential (TRP) channels are proposed to be expressed in arterial myocytes, but it is unclear if these proteins control physiological ...
Simon Bulley +12 more
doaj +1 more source
Intracranial baroreflex is attenuated in an ovine model of renovascular hypertension
Scientific Reports, 2021 We have previously shown that elevations in intracranial pressure (ICP) within physiological ranges in normotensive animals increase arterial pressure; termed the intracranial baroreflex.
Sydney Vari +3 more
doaj +1 more source
Non-invasive Evaluation of Aortic Stiffness Dependence with Aortic Blood Pressure and Internal Radius by Shear Wave Elastography and Ultrafast Imaging [PDF]
IRBM, Elsevier Masson, 2018, 39 (1), pp.9-17, 2019 Elastic properties of arteries have long been recognized as playing a major role in the cardiovascular system. However, non-invasive in vivo assessment of local arterial stiffness remains challenging and imprecise as current techniques rely on indirect estimates such as wall deformation or pulse wave velocity.
arxiv +1 more source
A multiscale model of vascular function in chronic thromboembolic pulmonary hypertension [PDF]
, 2021 Chronic thromboembolic pulmonary hypertension (CTEPH) is caused by recurrent or unresolved pulmonary thromboemboli, leading to perfusion defects and increased arterial wave reflections. CTEPH treatment aims to reduce pulmonary arterial pressure and reestablish adequate lung perfusion, yet patients with distal lesions are inoperable by standard surgical
arxiv +1 more source