Suchergebnisse - "Numerical approximation and analysis"

Toward accurate tooth segmentation from computed tomography images using a hybrid level set model von Gan, Yangzhou, Xia, Zeyang, Xiong, Jing, Zhao, Qunfei, Hu, Ying, Zhang, Jianwei

“… Purpose: A three‐dimensional (3D) model of the teeth provides important information for orthodontic diagnosis and treatment planning. Tooth segmentation is an …”
Volltext

Synchronized multiartifact reduction with tomographic reconstruction (SMART‐RECON): A statistical model based iterative image reconstruction method to eliminate limited‐view artifacts and to mitigate the temporal‐average artifacts in time‐resolved CT von Chen, Guang‐Hong, Li, Yinsheng

“… Purpose: In x‐ray computed tomography (CT), a violation of the Tuy data sufficiency condition leads to limited‐view artifacts. In some applications, it is …”
Volltext

Fiducial marker-based correction for involuntary motion in weight-bearing C-arm CT scanning of knees. II. Experiment von Choi, Jang-Hwan, Maier, Andreas, Keil, Andreas, Pal, Saikat, McWalter, Emily J., Beaupré, Gary S., Gold, Garry E., Fahrig, Rebecca

“… In Part I of this study, using the 4D XCAT-based numerical simulation, the authors predicted that the involuntary motion in the lower body of subjects in weight-bearing positions would seriously …”
Volltext

A molecular dynamics study of the effect of nanoparticles coating on thermal conductivity of nanofluids von Roni, Md. Rakibul Hasan, Shahadat, Muhammad Rubayat Bin, Morshed, A.K.M. Monjur Monjur

“… Nanofluids have become the subject of theoretical and experimental researches over the last few decades due to their enhanced heat transfer performance …”
Volltext

Multiscale bilateral filtering for improving image quality in digital breast tomosynthesis von Lu, Yao, Chan, Heang‐Ping, Wei, Jun, Hadjiiski, Lubomir M., Samala, Ravi K.

“… Purpose: Detection of subtle microcalcifications in digital breast tomosynthesis (DBT) is a challenging task because of the large, noisy DBT volume. It is …”
Volltext

Audiovisual biofeedback improves diaphragm motion reproducibility in MRI von Kim, Taeho, Pollock, Sean, Lee, Danny, O’Brien, Ricky, Keall, Paul

“… : To test the hypothesis 15 healthy human subjects were enrolled in an ethics-approved AV biofeedback study consisting of two imaging sessions spaced ∼1 week apart …”
Volltext

DNS-DERIVED FORCE DISTRIBUTION ON FLEXIBLE CYLINDERS SUBJECT TO VORTEX-INDUCED VIBRATION von EVANGELINOS, C., LUCOR, D., KARNIADAKIS, G.E.

“… We use direct numerical simulation (DNS) based on spectral methods to simulate turbulent flow past rigid and flexible cylinders subject to vortex-induced vibrations (VIV …”
Volltext

In vivo assessment of optimal b-value range for perfusion-insensitive apparent diffusion coefficient imaging von Freiman, Moti, Voss, Stephan D., Mulkern, Robert V., Perez-Rossello, Jeannette M., Callahan, Michael J., Warfield, Simon K.

“… : DW-MRI data of 15 subjects were acquired with eightb-values in the range of 5–800 s/mm2. The reference-standard, a perfusion insensitive, ADC value …”
Volltext

Extraction of tumor motion trajectories using PICCS-4DCBCT: A validation study von Qi, Zhihua, Chen, Guang-Hong

“… to validate its capability in motion trajectory extraction using physical phantom data, simulated human subject data …”
Volltext

Can conclusions drawn from phantom‐based image noise assessments be generalized to in vivo studies for the nonlinear model‐based iterative reconstruction method? von Gomez‐Cardona, Daniel, Li, Ke, Hsieh, Jiang, Lubner, Meghan G., Pickhardt, Perry J., Chen, Guang‐Hong

“… Many key image quality metrics acquired with phantom studies can be directly applied to in vivo human subject studies …”
Volltext

3D automatic anatomy segmentation based on iterative graph-cut-ASM von Chen, Xinjian, Bagci, Ulas

“… Purpose: This paper studies the feasibility of developing an automatic anatomy segmentation (AAS) system in clinical radiology and demonstrates its operation …”
Volltext

Hierarchical and symmetric infant image registration by robust longitudinal‐example‐guided correspondence detection von Wu, Yao, Wu, Guorong, Wang, Li, Munsell, Brent C., Wang, Qian, Lin, Weili, Feng, Qianjin, Chen, Wufan, Shen, Dinggang

“… Purpose: To investigate anatomical differences across individual subjects, or longitudinal changes in early brain development, it is important to perform accurate image registration …”
Volltext

Crack patterns in thin films von Xia, Z.Cedric, Hutchinson, John W.

“… Specific examples are presented for films subject to equi-biaxial residual tensile stress …”
Volltext

Iterative threshold segmentation for PET target volume delineation von Drever, Laura, Roa, Wilson, McEwan, Alexander, Robinson, Don

“… The purpose of this work is to create a rigorous method of segmenting PET images using an automated iterative technique. To this end a phantom study employing …”
Volltext

Statistical model based iterative reconstruction in clinical CT systems. Part III. Task‐based kV/mAs optimization for radiation dose reduction von Li, Ke, Gomez‐Cardona, Daniel, Hsieh, Jiang, Lubner, Meghan G., Pickhardt, Perry J., Chen, Guang‐Hong

“… Purpose: For a given imaging task and patient size, the optimal selection of x‐ray tube potential (kV) and tube current‐rotation time product (mAs) is pivotal …”
Volltext

Audiovisual biofeedback improves motion prediction accuracy von Pollock, Sean, Lee, Danny, Keall, Paul, Kim, Taeho

“… ) were obtained from 15 healthy human subjects across 30 studies. The subjects were required to breathe with and without the guidance of AV biofeedback during each study …”
Volltext

Low-complexity atlas-based prostate segmentation by combining global, regional, and local metrics von Xie, Qiuliang, Ruan, Dan

“… Atlas-based methods, as the state-of-the-art, provide good segmentation at the cost of a large number of computationally intensive nonrigid registrations, for anatomical sites/structures that are subject to deformation …”
Volltext

Partitioned edge-function-scaled region-based active contour (p-ESRAC): Automated liver segmentation in multiphase contrast-enhanced MRI von Oh, Jihun, Martin, Diego R., Hu, Xiaoping

“… Purpose: In multiphase contrast-enhanced magnetic resonance imaging (CE-MRI), liver segmentation is an important preprocessing step for the computer-aided …”
Volltext

Asymptotic Stability of Rarefaction Wave for the Navier–Stokes Equations for a Compressible Fluid in the Half Space von Kawashima, S., Zhu, P.

“… –Stokes equations in a compressible fluid in the Eulerian coordinate in the half space. This is the second one of our series of papers on this subject …”
Volltext

The Steady Motion of a Navier–Stokes Liquid Around a Rigid Body von Galdi, Giovanni P., Silvestre, Ana L.

“… : Formulae and/or non-USASCII text omitted; see image) that fills the whole space and is subject to given boundary conditions and body force …”
Volltext