Research Topics
| Charles A McKenzieSummaryAffiliation: Harvard University Country: USA Publications
| Collaborators
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Detail Information
Publications
T(1) fast acquisition relaxation mapping (T(1)-FARM): optimized data acquisitionC A McKenzie
Department of Medical Biophysics, University of Western Ontario, London, Ontario, Canada
Magn Reson Imaging 18:129-38. 2000....- Coil-by-coil image reconstruction with SMASHC A McKenzie
Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
Magn Reson Med 46:619-23. 2001..Standard component coil combinations applied to the individual reconstructed images produce final composite images free of phase cancellation artifacts... - Three-dimensional delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) at 1.5T and 3.0TCharles A McKenzie
Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
J Magn Reson Imaging 24:928-33. 2006..5T and 3.0T... - Self-calibrating parallel imaging with automatic coil sensitivity extractionCharles A McKenzie
Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
Magn Reson Med 47:529-38. 2002..In vivo implementations of self-calibrating parallel imaging using a flexible coil array are demonstrated in abdominal imaging and in real-time cardiac imaging studies... - Shortening MR image acquisition time for volumetric interpolated breath-hold examination with a recently developed parallel imaging reconstruction technique: clinical feasibilityCharles A McKenzie
Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Room AN 239, Boston, MA 02215, USA
Radiology 230:589-94. 2004..Parallel MR imaging-accelerated VIBE may be beneficial for patients who have difficulty sustaining a breath hold for the duration necessary to perform nonaccelerated imaging... 
T(2)-weighted 3D fast spin echo imaging with water-fat separation in a single acquisitionAnanth J Madhuranthakam
Applied Science Lab, GE Healthcare, Boston, Massachusetts, USA
J Magn Reson Imaging 32:745-51. 2010..To develop a robust 3D fast spin echo (FSE) T(2)-weighted imaging method with uniform water and fat separation in a single acquisition, amenable to high-quality multiplanar reformations...
T(1) independent, T(2) (*) corrected chemical shift based fat-water separation with multi-peak fat spectral modeling is an accurate and precise measure of hepatic steatosisCatherine D G Hines
Department of Radiology, University of Wisconsin, Madison, WI, USA
J Magn Reson Imaging 33:873-81. 2011..To determine the precision and accuracy of hepatic fat-fraction measured with a chemical shift-based MRI fat-water separation method, using single-voxel MR spectroscopy (MRS) as a reference standard...- Water-silicone separated volumetric MR acquisition for rapid assessment of breast implantsAnanth J Madhuranthakam
Global Applied Science Lab, GE Healthcare, Boston, Massachusetts, USA
J Magn Reson Imaging 35:1216-21. 2012..To develop a robust T(2) -weighted volumetric imaging technique with uniform water-silicone separation and simultaneous fat suppression for rapid assessment of breast implants in a single acquisition... - Water-fat separation with IDEAL gradient-echo imagingScott B Reeder
Department of Radiology, University of Wisconsin, Madison, Wisconsin 53792, USA
J Magn Reson Imaging 25:644-52. 2007..Robust fat suppression is necessary for many GRE imaging applications; unfortunately, uniform fat suppression is challenging in the presence of B(0) inhomogeneities. These challenges are addressed with the IDEAL technique... - Inherently self-calibrating non-Cartesian parallel imagingErnest N Yeh
Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
Magn Reson Med 54:1-8. 2005..This work demonstrates the feasibility of self-calibrated spiral and radial parallel imaging using a previously described iterative non-Cartesian sensitivity encoding algorithm... - T1 independent, T2* corrected MRI with accurate spectral modeling for quantification of fat: validation in a fat-water-SPIO phantomCatherine D G Hines
Department of Radiology, University of Wisconsin, Madison, Wisconsin 53792 3252, USA
J Magn Reson Imaging 30:1215-22. 2009.... - Comprehensive quantification of signal-to-noise ratio and g-factor for image-based and k-space-based parallel imaging reconstructionsPhilip M Robson
Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
Magn Reson Med 60:895-907. 2008.... - Parallel magnetic resonance imaging with adaptive radius in k-space (PARS): constrained image reconstruction using k-space locality in radiofrequency coil encoded dataErnest N Yeh
Harvard-MIT Division of Health Sciences and Technology, Boston, Massachusetts 02215, USA
Magn Reson Med 53:1383-92. 2005.... - Concentric coil arrays for parallel MRIMichael A Ohliger
Harvard MIT Division of Health Sciences and Technology, Boston, Massachusetts, USA
Magn Reson Med 54:1248-60. 2005..Both fully-sampled and undersampled cardiac images acquired using the concentric array are shown. These results suggest that concentric structures can be useful tools for designing specialized coil arrays for parallel MRI... - Delayed gadolinium-enhanced magnetic resonance imaging of cartilage in knee osteoarthritis: findings at different radiographic stages of disease and relationship to malalignmentAshley Williams
Beth Israel Deaconess Medical Center and Harvard Medical School, 4 Blackfan Circle, Boston, MA 02115, USA
Arthritis Rheum 52:3528-35. 2005..43, P = 0.02). CONCLUSION: The biochemical information provided by dGEMRIC scans may augment radiography by improving the differentiation of disease status within a given radiographic grade, especially in early OA... - Rapid volumetric MRI using parallel imaging with order-of-magnitude accelerations and a 32-element RF coil array: feasibility and implicationsDaniel K Sodickson
Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
Acad Radiol 12:626-35. 2005..The goal of this work was to demonstrate that, with appropriate hardware and careful SNR management, rapid volumetric imaging at high accelerations is in fact feasible... - Recent advances in image reconstruction, coil sensitivity calibration, and coil array design for SMASH and generalized parallel MRIDaniel K Sodickson
Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, One Autumn Street, Fifth Floor, Boston, MA 02215, USA
MAGMA 13:158-63. 2002..Several parallel imaging array designs that depart from the traditional model of overlapped adjacent loop elements are described... - Fat quantification with IDEAL gradient echo imaging: correction of bias from T(1) and noiseChia Ying Liu
Department of Radiology, University of Wisconsin Madison, Madison, WI 53792, USA
Magn Reson Med 58:354-64. 2007..We also demonstrated two methods to reduce noise bias: magnitude discrimination and phase-constrained reconstruction. Both methods were shown to reduce this noise bias effectively from 15% to less than 1%... - Quantification of hepatic steatosis with MRI: the effects of accurate fat spectral modelingScott B Reeder
Department of Radiology, University of Wisconsin, Madison, Wisconsin, USA
J Magn Reson Imaging 29:1332-9. 2009..Quantitative noninvasive biomarkers of hepatic steatosis are urgently needed for the diagnosis and management of nonalcoholic fatty liver disease (NAFLD)... - Quantification of hepatic steatosis with T1-independent, T2-corrected MR imaging with spectral modeling of fat: blinded comparison with MR spectroscopySina Meisamy
Liver Imaging Research Program, Department of Radiology, University of Wisconsin, 600 Highland Ave, E3 311 CSC, Madison, WI 53792 3252, USA
Radiology 258:767-75. 2011..To prospectively compare an investigational version of a complex-based chemical shift-based fat fraction magnetic resonance (MR) imaging method with MR spectroscopy for the quantification of hepatic steatosis... - A convex relaxation approach to fat/water separation with minimum label descriptionAbraam S Soliman
University of Western Ontario, London, ON, Canada
Med Image Comput Comput Assist Interv 15:519-26. 2012..Experimental results for cardiac imaging, where challenging field inhomogeneities exist, showed that our method significantly outperforms over a widely-used technique for fat/water separation in terms of robustness and efficiency... - Computationally rapid method of estimating signal-to-noise ratio for phased array image reconstructionsCurtis N Wiens
Department of Physics and Astronomy, Faculty of Science, University of Western Ontario, London, Ontario, Canada
Magn Reson Med 66:1192-7. 2011..SNR maps calculated with the new method are validated against existing SNR calculation techniques... - Effects of inductive coupling on parallel MR image reconstructionsMichael A Ohliger
Harvard MIT Division of Health Sciences and Technology, Boston, MA, USA
Magn Reson Med 52:628-39. 2004..These initial results suggest that moderate amounts of inductive coupling should not have a prohibitive effect on the use of a given coil array for parallel MRI... - Evaluation of adipose tissue volume quantification with IDEAL fat-water separationAbdullah Alabousi
Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
J Magn Reson Imaging 34:474-9. 2011..IDEAL allows MRI images to be produced only from adipose-containing tissues; hence, quantifying adipose tissue should be simpler and more accurate than with current methods... - Optimisation of dynamic nuclear polarisation of [1-(13)C] pyruvate by addition of gadolinium-based contrast agentsLanette Friesen-Waldner
Robarts Research Institute, London, Ontario, Canada N6A 5K8
J Magn Reson 223:85-9. 2012.... - Evaluation of real-time single-shot fast spin-echo MRI for visualization of the fetal midline corpus callosum and secondary palateDeborah Levine
Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA 02215, USA
AJR Am J Roentgenol 187:1505-11. 2006..The objective of our study was to assess the visibility of the fetal corpus callosum and soft palate on standard single-shot fast spin-echo (SSFSE) imaging versus real-time (RT) SSFSE imaging... - Phase-constrained parallel MR image reconstructionJacob D Willig-Onwuachi
Departments of Radiology and Biomedical Engineering, University of California Davis, CA, USA
J Magn Reson 176:187-98. 2005..The theory of the phase-constrained approach is outlined, and its calibration requirements and limitations are discussed. Simulations, phantom experiments, and in vivo experiments are presented... - Single acquisition water-fat separation: feasibility study for dynamic imagingHuanzhou Yu
Global Applied Science Laboratory, GE Healthcare, Menlo Park, CA, USA
Magn Reson Med 55:413-22. 2006..In this situation, the calibration scans required by both methods can be integrated into a shared calibration scan. Promising results were obtained in breast, abdominal, and cardiac imaging applications... - Highly parallel volumetric imaging with a 32-element RF coil arrayYudong Zhu
General Electric Global Research Center, Schenectady, New York 12309, USA
Magn Reson Med 52:869-77. 2004..Imaging with the support of 32-channel data acquisition systems produced in vivo results with up to 16-fold acceleration, including images from rapid abdominal and MRA studies... - Multiecho reconstruction for simultaneous water-fat decomposition and T2* estimationHuanzhou Yu
Global Applied Science Lab, GE Healthcare, Menlo Park, California, USA
J Magn Reson Imaging 26:1153-61. 2007..The method removes interference of water-fat separation with iron-induced T2* effects and therefore has potential for the simultaneous characterization of hepatic steatosis (fatty infiltration) and iron overload...