A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Filters
3D Non-rigid Motion Correction of Free-Breathing Abdominal DCE-MRI Data
[chapter]
2012
Lecture Notes in Computer Science
Preserved Fulltext
We propose a gated, 3D non-rigid motion correction method that robustly extracts time intensity curves from bowel segments in free-breathing abdominal DCE-MRI data. ...
However, respiratory and peristaltic motions complicate an easy analysis of such curves since spatial correspondence over time is lost. ...
We propose a 3D non-rigid motion correction method that robustly extracts time intensity curves from bowel segments in free-breathing abdominal DCE-MRI data. ...
doi:10.1007/978-3-642-28557-8_6
fatcat:wyyow4ekozh7hppowepzdwngyi
Free breathing DCE-MRI with motion correction and its values for benign and malignant liver tumor differentiation
2015
Radiology of Infectious Diseases
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Pharmacokinetics analysis could be performed with the help of motion correction by non-rigid registration using the first pass data. ...
Automatic non-linear image registration was applied to both multi-flip angle data and dynamic phase data for motion correction. ...
Conclusions We proposed a liver DCE-MRI technique with free breathing and motion correction. ...
doi:10.1016/j.jrid.2015.07.001
fatcat:ml7zcmnvtfgl3pw3vw6wktkoem
Fast pediatric 3D free-breathing abdominal dynamic contrast enhanced MRI with high spatiotemporal resolution
2013
Journal of Magnetic Resonance Imaging
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Purpose-To develop a method for fast pediatric 3D free-breathing abdominal dynamic contrast enhanced (DCE) MRI and investigate its clinical feasibility. ...
Undersampled data were reconstructed with a compressed sensing method without motion correction (FB-CS) and the proposed method (FB-LR). ...
DISCUSSION This study addresses the salient challenges of fast free-breathing 3D DCE pediatric MRI. ...
doi:10.1002/jmri.24551
pmid:24375859
pmcid:PMC4065644
fatcat:44s3w7lpdrd2tbpzljs7j2umgm
Motion correction of free-breathing magnetic resonance renography using model-driven registration
2021
Magnetic Resonance Materials in Physics, Biology and Medicine
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
In this study, we investigate whether MDR can effectively correct the motion in free-breathing MR renography (MRR). ...
DRO data showed that the bias and precision of parameter maps after MDR are indistinguishable from motion-free data. ...
Time series after motion correction with frame indices: a DRO data with rigid motion; b DRO data with non-rigid motion; c 2D MRR data of subject 3; d 3D MRR data of subject 1
Fig. 6 Fig. 7 67 Effects ...
doi:10.1007/s10334-021-00936-x
pmid:34160718
pmcid:PMC8578117
fatcat:h4kemloclvfaxddvet6jdzvqpq
Image registration in dynamic renal MRI—current status and prospects
2019
Magnetic Resonance Materials in Physics, Biology and Medicine
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
Therefore, they are hampered by motion, e.g., by pulsation, peristaltic, or breathing motion. ...
This comprises among others assessment of hemodynamic parameters by arterial spin labeling (ASL) or dynamic contrast-enhanced (DCE-) MRI. ...
Table 1 1 Overview of image acquisition-based motion correction techniques used in renal MRI Motion correction approach Application References Breathhold strategies Shallow regular breathing ASL, DCE-MRI ...
doi:10.1007/s10334-019-00782-y
pmid:31598799
fatcat:vmbq3ehs55gctf3mmdxh4xppzu
XD-GRASP: Golden-angle radial MRI with reconstruction of extra motion-state dimensions using compressed sensing
2015
Magnetic Resonance in Medicine
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
The performance of XD-GRASP is demonstrated for free-breathing threedimensional (3D) abdominal imaging, two-dimensional (2D) cardiac cine imaging and 3D dynamic contrast-enhanced (DCE) MRI of the liver ...
Purpose-To develop a novel framework for free-breathing MRI called XD-GRASP, which sorts dynamic data into extra motion-state dimensions using the self-navigation properties of radial imaging and reconstructs ...
Jing Liu from UCSF for helpful discussion about motion estimations and Mr. Jian Xu from Siemens Healthcare USA for radial bSSFP sequence support. ...
doi:10.1002/mrm.25665
pmid:25809847
pmcid:PMC4583338
fatcat:ql6fapvulraynpdpm3owmdtday
Respiratory motion-compensated radial dynamic contrast-enhanced (DCE)-MRI of chest and abdominal lesions
2008
Magnetic Resonance in Medicine
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
) is corrected using 3D image correlation. ...
In chest and abdominal regions, however, respiratory motion can seriously degrade the achievable image quality in DCE-MRI studies. ...
the free-breathing DCE-MRI scan. ...
doi:10.1002/mrm.21740
pmid:18956465
pmcid:PMC4772667
fatcat:ewdgykbpujel3nkiumd3rruuby
Assessment of 3D DCE-MRI of the kidneys using non-rigid image registration and segmentation of voxel time courses
2009
Computerized Medical Imaging and Graphics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2010; you can also visit the original URL.
The file type is application/pdf.
The proposed registration method reduced motion artifacts in the image time series and improved further analysis of the DCE-MRI data. ...
This approach consists of non-rigid 3D image registration of the moving kidney followed by k-means clustering of the voxel time courses with split between left and right kidney. ...
The total acquisition time in exam 1 was 7 min 12 s with pauses of 62 s after volume 11, 70 s after volume number 16, and
Non-rigid image registration The registration of abdominal DCE-MRI time series ...
doi:10.1016/j.compmedimag.2008.11.004
pmid:19135861
fatcat:ii7mfqssczfzlin3zlqo3fzps4
Automated registration of sequential breath-hold dynamic contrast-enhanced MR images: a comparison of three techniques
2011
Magnetic Resonance Imaging
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
resolution vis-à-vis free-breathing. ...
DCE-MRI of chest and abdominal lesions is typically performed during sequential breath-holds, which introduces misregistration due to inconsistent diaphragm positions, and also places constraints on temporal ...
Acknowledgments This work was partly funded by grants from the National Institutes of Health (P01-CA017094 and the IRAT supplement to P30-CA023074). ...
doi:10.1016/j.mri.2011.02.012
pmid:21531108
pmcid:PMC3100446
fatcat:kadb5u72ubd7xaoovhexskv4ei
Rigid-body motion correction of the liver in image reconstruction for golden-angle stack-of-stars DCE MRI
2017
Magnetic Resonance in Medicine
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
To counteract the effects of motion, liver DCE-MRI has been acquired during repeated breath holding (5) . ...
Finally, the corrected data is reconstructed into DCE-MRI time series using temporal view sharing. ...
doi:10.1002/mrm.26782
pmid:28617993
fatcat:3t4umsepabdntfsbqys4ccgi5a
Compressed sensing for body MRI
2016
Journal of Magnetic Resonance Imaging
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
The advent of compressed sensing marks the prelude to a new era of rapid MRI, where the focus of data acquisition has changed from sampling based on the nominal number of voxels and/or frames to sampling ...
This paper presents a brief overview of the application of compressed sensing techniques in body MRI, where imaging speed is crucial due to the presence of respiratory motion along with stringent constraints ...
These studies include accelerated 3D abdominal MRI,
free-breathing DCE-MRI, abdominal 4D flow imaging. ...
doi:10.1002/jmri.25547
pmid:27981664
pmcid:PMC5352490
fatcat:ulfop3kccrg4tdpqsybotylccy
Method for motion artifact reduction using a convolutional neural network for dynamic contrast enhanced MRI of the liver
[article]
2018
arXiv
pre-print
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Other Versions
Purpose: To improve the quality of images obtained via dynamic contrast-enhanced MRI (DCE-MRI) that include motion artifacts and blurring using a deep learning approach. ...
Methods: A multi-channel convolutional neural network (MARC) based method is proposed for reducing the motion artifacts and blurring caused by respiratory motion in images obtained via DCE-MRI of the liver ...
Other approaches include data acquisition without breath holding (free-breathing method) using respiratory triggering and respiratory triggered DCE-MRI, which is an effective technique to reduce motion ...
arXiv:1807.06956v2
fatcat:zxv35dke3zd7fdobe3r3x23g5y
Intravoxel incoherent motion diffusion-weighted imaging of hepatocellular carcinoma: Is there a correlation with flow and perfusion metrics obtained with dynamic contrast-enhanced MRI?
2016
Journal of Magnetic Resonance Imaging
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Materials and Methods-Twenty-five patients with HCC (M/F 23/2, mean age 58 years) underwent abdominal MRI at 1.5 or 3.0T, including IVIM-DWI (with 16 b-values) and DCE-MRI (3D FLASH sequence, mean temporal ...
Purpose-To assess the correlation between intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) metrics in hepatocellular ...
Sigmund from New York University School of Medicine for useful discussions. ...
doi:10.1002/jmri.25194
pmid:26919327
pmcid:PMC5142524
fatcat:wkaiccgstjcchffck7mklthviq
Motion Artifact Reduction Using a Convolutional Neural Network for Dynamic Contrast Enhanced MR Imaging of the Liver
2019
Magnetic Resonance in Medical Sciences
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
To improve the quality of images obtained via dynamic contrast enhanced MRI (DCE-MRI), which contain motion artifacts and blurring using a deep learning approach. ...
A deep learning-based method for removing motion artifacts in images obtained via DCE-MRI of the liver was demonstrated and validated. ...
Other authors declare no conflict of interest to disclose related to this study. ...
doi:10.2463/mrms.mp.2018-0156
pmid:31061259
pmcid:PMC7067907
fatcat:dldkzf2ojrcj3engo2gaxsi2am
A method for dynamic subtraction MR imaging of the liver
2006
BMC Medical Imaging
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2006; you can also visit the original URL.
The file type is application/pdf.
Acknowledgements The authors thank the staff of MR Unit of National Cancer Institute of Milan for technical assistance in the acquisition of patient data. ...
In DCE-MRI, the liver is imaged during breath-hold (reducing respiratory motion artifacts) before and after the injection of contrast in selected phases of contrast distribution (typically early and late ...
Contrast-Enhanced 3D Magnetic Resonance Imaging (DCE-MRI) detects and accurately characterizes many types of liver lesion [1]- [5] . ...
doi:10.1186/1471-2342-6-5
pmid:16759378
pmcid:PMC1564010
fatcat:itnjign7vfcn3irqp2ao5zmtuu
« Previous
Showing results 1 — 15 out of 371 results