Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Stanley J, Kruger"'
Publikováno v:
Magnetic Resonance in Medicine. 84:1235-1249
Purpose To introduce a new approach called tailored variable flip-angle (VFA) scheduling for SNR-efficient 3D T1ρ mapping of the brain using a magnetization-prepared gradient-echo sequence. Methods Simulations were used to assess the relative SNR ef
Publikováno v:
ISBI
Proc IEEE Int Symp Biomed Imaging
Proc IEEE Int Symp Biomed Imaging
We introduce a novel generative smoothness regularization on manifolds (SToRM) model for the recovery of dynamic image data from highly undersampled measurements. The proposed generative framework represents the image time series as a smooth non-line
Publikováno v:
ISBI
Proc IEEE Int Symp Biomed Imaging
Proc IEEE Int Symp Biomed Imaging
Bilinear models such as low-rank and compressed sensing, which decompose the dynamic data to spatial and temporal factors, are powerful and memory efficient tools for the recovery of dynamic MRI data. These methods rely on sparsity and energy compact
Publikováno v:
IEEE Trans Med Imaging
We introduce a generative smoothness regularization on manifolds (SToRM) model for the recovery of dynamic image data from highly undersampled measurements. The model assumes that the images in the dataset are non-linear mappings of low-dimensional l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f88e9fce6d26892a6f11a0fe043bca2
http://arxiv.org/abs/2102.00034
http://arxiv.org/abs/2102.00034
Autor:
Arvind Balachandrasekaran, Stanley J. Kruger, Mathews Jacob, Merry Mani, Stephen L. Siemonsma
Publikováno v:
ISBI
Proc IEEE Int Symp Biomed Imaging
Proc IEEE Int Symp Biomed Imaging
Echo-planar imaging (EPI), which is the main workhorse of functional MRI, suffers from field inhomogeneity-induced geometric distortions. The amount of distortion is proportional to the readout duration, which restricts the maximum achievable spatial
Autor:
Michael D. Evans, Ronald L. Sorkness, David G. Mummy, Sean B. Fain, Stanley J. Kruger, Loren C. Denlinger, Nizar N. Jarjour, Scott K. Nagle, Robert V. Cadman, Wei Zha
Publikováno v:
Academic Radiology. 25:169-178
Rationale and Objectives To determine lobar ventilation patterns in asthmatic lungs with hyperpolarized 3He magnetic resonance imaging (HP 3He MRI). Materials and Methods Eighty-two subjects (14 normal, 48 mild-to-moderate asthma, and 20 severe asthm
Autor:
Andrew D. Hahn, Stanley J. Kruger, Laura C. Bell, Scott K. Nagle, Sean B. Fain, Fang Liu, Michael D. Evans, Robert V. Cadman, Kevin M. Johnson, Wei Zha
Publikováno v:
Journal of Magnetic Resonance Imaging. 47:1287-1297
Background A previous study demonstrated the feasibility of using 3D radial ultrashort echo time (UTE) oxygen-enhanced MRI (UTE OE-MRI) for functional imaging of healthy human lungs. The repeatability of quantitative measures from UTE OE-MRI needs to
Publikováno v:
Magn Reson Med
PURPOSE: To introduce a new approach called tailored variable flip-angle (VFA) scheduling for SNR-efficient 3D T(1ρ) mapping of the brain using a magnetization-prepared gradient-echo sequence. METHODS: Simulations were used to assess the relative SN
Autor:
Scott K. Nagle, Sean B. Fain, Robert V. Cadman, Stanley J. Kruger, David J. Niles, David G. Mummy, Bernard J. Dardzinski, Wei Zha
Publikováno v:
Academic Radiology. 23:1104-1114
Rationale and Objectives This study aimed to compare the performance of a semiautomated ventilation defect segmentation approach, adaptive K -means, with manual segmentation of hyperpolarized helium-3 magnetic resonance imaging in subjects with exerc
Autor:
Sean B. Fain, Stanley J. Kruger, Mitchell S. Albert, Yoshiharu Ohno, Scott K. Nagle, Marcus J. Couch
Publikováno v:
Journal of Magnetic Resonance Imaging. 43:295-315
This review focuses on the state-of-the-art of the three major classes of gas contrast agents used in magnetic resonance imaging (MRI)—hyperpolarized (HP) gas, molecular oxygen, and fluorinated gas—and their application to clinical pulmonary rese