Results 31 to 40 of about 3,366,340 (357)

Factors modulating 99mTc‐MAA planar lung dosimetry for 90Y radioembolization

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the accuracy and biases of predicted lung shunt fraction (LSF) and lung dose (LD) calculations via 99mTc‐macro‐aggregated albumin (99mTc‐MAA) planar imaging for treatment planning of 90Y‐microsphere radioembolization.
Benjamin P. Lopez, Armeen Mahvash, James P. Long, Marnix G. E. H. Lam, S. Cheenu Kappadath   +4 more
wiley   +1 more source

Detection of Direct Sun Glare on Drivers from Point Clouds

Remote Sensing, 2022
Sunlight conditions can reduce drivers’ visibility, which is a safety concern on road networks. This research introduces a method to study sun glare incidence in road environments.
Silvia María González-Collazo, Pablo del Río-Barral, Jesús Balado, Elena González   +3 more
doaj   +1 more source

Feasibility of radical cardiac‐sparing, treatment planning strategies for patients with locally advanced, non‐small cell lung cancer

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose A set of treatment planning strategies were designed and retrospectively implemented for locally advanced, non‐small cell lung cancer (NSCLC) patients in order to minimize cardiac dose without compromising target coverage goals. Methods Retrospective analysis was performed for 20 NSCLC patients prescribed to 60–66 Gy that received a ...
Joshua P. Kim, Jake Dewalt, Aharon Feldman, Khaled Adil, Benjamin Movsas, Indrin J. Chetty   +5 more
wiley   +1 more source

Evaluation of intrafraction couch shifts for proton treatment delivery in head‐and‐neck cancer patients: Toward optimal imaging frequency

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Treatment planning for head‐and‐neck (H&N) cancer, in particular oropharynx, nasopharynx, and paranasal sinus cases, at our center requires noncoplanar proton beams due to the complexity of the anatomy and target location. Targeting accuracy for all beams is carefully evaluated by using image guidance before delivering proton beam ...
Nrusingh C. Biswal, Dario B. Rodrigues, Weiguang Yao, Jason K. Molitoris, Matthew E. Witek, Shifeng Chen   +5 more
wiley   +1 more source

Echocardiographic left ventricular geometry profiles for prediction of stroke, coronary heart disease and all-cause mortality in the Chinese community: a rural cohort population study

BMC Cardiovascular Disorders, 2021
Background The utility of echocardiographic left ventricular (LV) geometry in the prediction of stroke/coronary heart disease (CHD) and all-cause mortality is not well characterized.
Tan Li, Guangxiao Li, Xiaofan Guo, Zhao Li, Yingxian Sun   +4 more
doaj   +1 more source

Digital radiography image quality evaluation using various phantoms and software

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas, Shady AlKhazzam, Virginia Tsapaki, Huda AlNaemi, Mohammed Hassan Kharita   +4 more
wiley   +1 more source

Numerical Investigation into a New Method of Non-Axisymmetric End Wall Contouring for Axial Compressors

Energies, 2022
To deal with corner separation in high-load axial compressors, this paper proposes a new end wall contouring method aimed at controlling the end wall secondary flow in more than one local area, generating a geometry with fewer control variables that is ...
Fuhao You, Xiangjun Li, Qing Lu, Haoguang Zhang, Wuli Chu   +4 more
doaj   +1 more source

Numerical Investigation of External Electromagnetic Field Coupling to Coplanar Waveguide [PDF]

International Journal of Industrial Electronics, Control and Optimization, 2020
In this paper, for the first time, effects of external electromagnetic fields on a coplanar waveguide (CPW) are numerically studied by means of the method of finite elements. Two CPW lines with different geometry and dielectric substrate permittivity are
Hamideh Dashti
doaj   +1 more source

Incidences of Möbius transformations in $\mathbb F_p$ [PDF]

Discrete Comput Geom (2022), 2021
We develop the methods used by Rudnev and Wheeler to prove an incidence theorem between arbitrary sets of M\"{o}bius transformations and point sets in $\mathbb F_p^2$. We also note some asymmetric incidence results, and give applications of these results to various problems in additive combinatorics and discrete geometry.
arxiv   +1 more source

Wind Direction Retrieval Using Spaceborne GNSS-R in Nonspecular Geometry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
A wind direction retrieval algorithm using spaceborne global navigation satellite system reflectometry (GNSS-R) in nonspecular geometry is presented. This article first focuses on investigating the influence of wind direction on the scattering strength ...
Guodong Zhang, Dongkai Yang, Yongqing Yu, Feng Wang   +3 more
doaj   +1 more source