Results 41 to 50 of about 1,238 (180)

Correlations Between Body Weight and Size-Specific Dose Estimate on Thoracic Computed Tomography Examination

open access: yesAtom Indonesia, 2022
The dose received by a patient on CT examination is expressed in size-specific dose estimates (SSDE) which is a function of the patient diameter, x-ray attenuation, and scanner output (volume computed tomography dose index, CTDIvol). Patient diameter and
A. L. Wati   +4 more
doaj   +1 more source

SSDE: Fast Graph Drawing Using Sampled Spectral Distance Embedding [PDF]

open access: yes, 2007
We present a fast spectral graph drawing algorithm for drawing undirected connected graphs. ClassicalMulti-Dimensional Scaling yields a quadratic-time spectral algorithm, which approximates the real distances of the nodes in the final drawing with their graph theoretical distances.
Ali Civril   +2 more
openaire   +1 more source

Effects of various tilt angles on radiation dose and image quality in pediatric head computed tomography: A phantom study. [PDF]

open access: yesJ Appl Clin Med Phys
Abstract Background Various methods have been employed to reduce radiation dose and improve image quality in head computed tomography (CT); however, the impact of different head tilt angles on these factors remains underexplored. Objective To investigate the effects of different head tilt angles on radiation dose and image quality in head CT. Materials
Xu H, Zhao J, Xu Z, Liu B, Cai J.
europepmc   +2 more sources

Self-Adapting Spherical Search Algorithm with Differential Evolution for Global Optimization

open access: yesMathematics, 2022
The spherical search algorithm is an effective optimizer to solve bound-constrained non-linear global optimization problems. Nevertheless, it may fall into the local optima when handling combination optimization problems.
Jian Zhao   +4 more
doaj   +1 more source

Institutional CT dose reduction: A retrospective evaluation of dose indices from 2015–2024 [PDF]

open access: yesJ Appl Clin Med Phys
Abstract Background Growing attention to radiation risks and dose reduction in CT imaging creates opportunities to present and discuss institutional dose trends and contributing factors. Purpose To provide an evaluation of 10‐year trends in CT dose indices (CTDIvol and DLP) from a multi‐site and multi‐scanner institution, with the hypothesis that doses
Weaver J   +4 more
europepmc   +2 more sources

Advances in Sjögren’s Syndrome Dry Eye Diagnostics: Biomarkers and Biomolecules beyond Clinical Symptoms

open access: yesBiomolecules
Sjögren’s syndrome dry eye (SSDE) is a subset of Sjögren’s syndrome marked by dry eye symptoms that is distinct from non-Sjögren’s syndrome dry eye (NSSDE). As SSDE can lead to severe complications, its early detection is imperative.
Kevin Y. Wu   +3 more
doaj   +1 more source

SSDE-Cluster: Fast Overlapping Clustering of Networks Using Sampled Spectral Distance Embedding and GMMs [PDF]

open access: yes2011 IEEE Third Int'l Conference on Privacy, Security, Risk and Trust and 2011 IEEE Third Int'l Conference on Social Computing, 2011
Clustering social networks is vital to understanding online interactions and influence. This task becomes more difficult when communities overlap, and when the social networks become extremely large. We present an efficient algorithm for constructing overlapping clusters, (approximately linear).
Malik Magdon-Ismail, Jonathan T. Purnell
openaire   +1 more source

Summary of SSDE, CTDIvol32, and DLP.

open access: yes, 2018
Summary of SSDE, CTDIvol32, and DLP.
Woo Sun Kim (3163572)   +5 more
core   +1 more source

Analisis pengaruh volume dan material phantom silinder terhadap nilai Size Spesific Dose Estimates (SSDE) menggunakan simulasi Monte Carlo EGSnrc [PDF]

open access: yes, 2018
Telah dilakukan penelitian tentang analisis pengaruh volume dan material phantom silinder terhadap nilai Size Spesific Dose Estimates (SSDE) dengan menggunakan simulasi Monte Carlo EGSnrc.
Patmawati, Nopi
core   +1 more source

Comparison of the CTDIvol, DLP, and SSDE with the 50th and 75th percentiles of ACR DRLs.

open access: yes, 2021
Comparison of the CTDIvol, DLP, and SSDE with the 50th and 75th percentiles of ACR DRLs.
Xiaoyan Hu (362988)   +4 more
core   +1 more source

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