# overview
My research focuses on magnetic resonance imaging, particularly instrumentation and methodology.  I also have research interests in antenna theory - numerical methods, and phased arrays electromagnetics.

# keywords[]
4012 Fluid Mechanics And Thermal Engineering

# keywords[]
4603 Computer Vision And Multimedia Computation

# keywords[]
4.1 Discovery And Preclinical Testing Of Markers And Technologies

# keywords[]
4.1 Discovery And Preclinical Testing Of Markers And Technologies

# educationAndTraining[].organization.label
University of Illinois at Urbana Champaign - (Urbana, Illinois, United States)

# educationAndTraining[].organization.label
University of Illinois at Urbana Champaign - (Urbana, Illinois, United States)

# educationAndTraining[].organization.label
University of Illinois at Urbana Champaign - (Urbana, Illinois, United States)

# publications[].label
High Speed MR elastography using SEA imaging

# publications[].label
Simulation-based investigation of partially parallel imaging with a linear array at high accelerations.

# publications[].label
Magnetic resonance imaging of the Dandy-Walker malformation.

# publications[].label
A cryo-cooling microfluidic channel device for a magnetic resonance (MR) microscopy system

# publications[].label
Velocity extraction from spin-tagging MRI images using a weighted least-squares optical flow method

# publications[].label
Parallel imaging: system design and limitations

# publications[].label
A Regularized Flow Quantification Method Using MRI Tagging and Single Echo Acquisition Imaging

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Investigation of Low-Cost Op-Amps as Decoupling Preamplifiers for MRI Array Coils.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 16-channel receive, forced current excitation dual-transmit coil for breast imaging at 7T.

# publications[].label
RF current element design for independent control of current amplitude and phase in transmit phased arrays

# publications[].label
Single echo acquisition MRI using RF encoding.

# publications[].label
Iterative RF pulse refinement for magnetic resonance imaging.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Dextran magnetite as a liver contrast agent.

# publications[].label
Adaptive SENSE reconstruction for parallel imaging with massive array coils.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A regularized flow quantification method using MRI tagging and Single Echo Acquisition imaging.

# publications[].label
Simultaneous optical and nuclear magnetic resonance spectroscopy for monitoring cardiac energetics in vivo.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
An eight-channel T/R head coil for parallel transmit MRI at 3T using ultra-low output impedance amplifiers.

# publications[].label
Closed-loop feedback control of laser therapy using magnetic resonance imaging

# publications[].publisher
SPIE, the international society for optics and photonics

# publications[].label
Exploration of highly accelerated magnetic resonance elastography using high-density array coils.

# publications[].label
Velocity extraction from spin-tagging MRI images using a weighted least-squares optical flow method

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Sixteen Channel Head Array for Functional and High Resolution MRI

# publications[].label
A programmable data acquisition and control system for magnetic resonance imaging: application to mutually coupled surface coil arrays and temperature monitoring.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Theory and application of array coils in MR spectroscopy

# publications[].label
Single-point Dixon water-fat imaging using 64-channel single-echo acquisition MRI.

# publications[].label
Regularized estimation of magnitude and phase of multi-coil b1 field via Bloch-Siegert B1 mapping and coil combination optimizations.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Multiple slot modules for high field magnetic resonance imaging array coils.

# publications[].label
AN EIGHT CHANNEL TRANSMIT SYSTEM FOR TRANSMIT SENSE AT 3T

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
High resolution mapping of highly nonlinear RF magnetic fields

# publications[].label
A MODULAR TIME DOMAIN MULTIPLEXER FOR LARGE ARRAY MAGNETIC RESONANCE IMAGING

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
CHARACTERIZATION OF COUPLING IN PLANAR ARRAY COILS WITH ARBITRARY ELEMENT GEOMETRIES

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Feedback control of the nuclear magnetization state: modeling and control design.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Feasibility of Using a 1T Extremity Scanner with a Four-Element Array to Detect 31P in the Human Calf.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Review of Non-1H RF Receive Arrays in Magnetic Resonance Imaging and Spectroscopy.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Dynamic 13 C MR spectroscopy as an alternative to imaging for assessing cerebral metabolism using hyperpolarized pyruvate in humans.

# publications[].label
A retrofit to enable dynamic B1+ steering for transmit arrays without multiple amplifiers.

# publications[].label
Multi-channel magnetic resonance spectroscopy through time domain multiplexing.

# publications[].label
Limitations on the Maximum Number of Available Channels Using Time Domain Multiplexing

# publications[].label
A transceiver for an inexpensive desktop MR microscope

# publications[].label
A sixteen-channel multiplexing upgrade for single channel receivers.

# publications[].label
Reducing SAR in parallel excitation using variable-density spirals: a simulation-based study.

# publications[].label
Optimization of printed coil arrays for microscopic imaging and spectroscopy

# publications[].label
TUNING ULTRA-LOW OUTPUT IMPEDANCE AMPLIFIERS FOR OPTIMAL POWER AND DECOUPLING IN PARALLEL TRANSMIT MRI

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Clinical utility of magnetic resonance imaging in pediatric neurosurgical patients.

# publications[].label
Assessing the Feasibility of Dynamic 31P Spectroscopy for Metabolic Studies With a 1.0T Extremity Scanner.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
An Adjustable-Length Dipole Using Forced-Current Excitation for 7T MR.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Single echo acquistion of MR images using RF coil arrays

# publications[].label
Quadrature transmit coil for breast imaging at 7 tesla using forced current excitation for improved homogeneity.

# publications[].label
Rapid slice excitation without B0 gradients using large array coils.

# publications[].label
A microfluidically cryocooled spiral microcoil with inductive coupling for MR microscopy.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Applications of RF current sources for transmit phased array.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Initial results in wide-field 3D MR microscopy using parallel imaging

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Liposome delivery of NMR contrast agents for improved tissue imaging.

# publications[].label
SMASH imaging with an eight element multiplexed RF coil array.

# publications[].label
Time domain multiplexing for multichannel non-Fourier spatial encoding [magnetic resonance imaging]

# publications[].label
Preoperative Functional MR Imaging of the Motor Cortex in Patients with Cerebral Tumors

# publications[].label
A magnetic resonance (MR) microscopy system using a microfluidically cryo-cooled planar coil.

# publications[].label
A 32-channel receive array coil for bilateral breast imaging and spectroscopy at 7T.

# publications[].label
Phase compensation in single echo acquisition imaging. Phase effects of voxel-sized coils in planar and cylindrical arrays.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Frequency Translation System for Multi-Channel, Multi-Nuclear MR Spectroscopy.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Additive angle method for fast large-tip-angle RF pulse design in parallel excitation.

# publications[].label
64-channel array coil for single echo acquisition magnetic resonance imaging.

# publications[].label
Liposome encapsulated MnCl2 as a liver specific contrast agent for magnetic resonance imaging.

# publications[].label
A simple approach to overcoming mutual coupling effects in some transmit array coils for magnetic resonance imaging.

# publications[].label
An insertable nonlinear gradient coil for phase compensation in SEA imaging.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Design Tool for Decoupling RF Coils with Isolating Preamplifiers

# publications[].label
Fullwave analysis of planar radiofrequency coils and coil arrays with assumed current distribution

# publications[].label
A system for tracking interventional devices using magnetic resonance

# publications[].label
A method for the optimization of the low pass birdcage resonator with a finite number of legs

# publications[].label
Progress in Visualizing Turbulent Flow using Single-Echo Acquisition Imaging

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Design of matching networks for low noise preamplifiers.

# publications[].label
Multi-Tuned Cable Traps for Multinuclear MRI and MRS.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Odd-Leg Birdcages for Geometric Decoupling in Multinuclear Imaging and Spectroscopy

# publications[].label
A Sixteen Channel Multiplexed MRI Receiver

# publications[].label
A desktop imaging system for teaching MR engineering.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Accuracy and limitations of magnetic field measurement for validation of current density distribution using MRI

# publications[].label
MR flow measurement using RF phase gradients in receiver coil arrays.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Time domain multiplexing for multichannel non-Fourier spatial encoding

# publications[].label
An Adaptive Undersampling Scheme of Wavelet-Encoded Parallel MR Imaging for More Efficient MR Data Acquisition

# publications[].publisher
SPIE, the international society for optics and photonics

# publications[].label
OPTIMIZED LINEAR COMBINATIONS OF CHANNELS FOR COMPLEX MULTIPLE-COIL B1 FIELD ESTIMATION WITH BLOCH-SIEGERT B1 MAPPING IN MRI

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
An iterative technique for refinement of RF Pulses for magnetic resonance imaging

# publications[].label
Highly accelerated parallel imaging methods for localized massive array coils: Comparison using 64-channel phased-array data

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Volume array coil with enforced uniform element currents for improved excitation homogeneity

# publications[].label
Progress in visualizing turbulent flow using single-echo acquisition imaging.

# publications[].label
Phase Correction with Asynchronous Digitizers

# publications[].label
Measurement of Current Distribution on RF Coils Using MR Imaging

# publications[].label
A 16 channel time-multiplexed head coil array for functional MR imaging

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Microfluidically CRYO-cooled inductively coupled spiral microcoils for MR microscopy

# publications[].label
Effects of coplanar shielding for high field MRI.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Bilateral MR imaging with switched mutually coupled receiver coils.

# publications[].publisher
Radiological Society of North America (RSNA)

# publications[].label
Progress in visualizing turbulent flow using single-echo acquisition imaging

# publications[].label
A Sixteen Channel Multiplexer for MR Imaging

# publications[].label
A Simple Approach to Overcoming Mutual Coupling Effects in Some Transmit Array Coils for Magnetic Resonance Imaging

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Four-Channel Broadband MRI Receive Array Coil

# publications[].label
Development of a probe for simultaneous collection of optical and NMR spectra in vivo

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Trap Design and Construction for High-Power Multinuclear Magnetic Resonance Experiments.

# publications[].label
A parallel imaging approach to wide-field MR microscopy.

# publications[].label
A multi-plane scout sequence using flash imaging.

# publications[].label
A fourth gradient to overcome slice dependent phase effects of voxel-sized coils in planar arrays.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Chemical Modifications of Porous Shape Memory Polymers for Enhanced X-ray and MRI Visibility.

# publications[].label
Phased Array Coils for Functional MR Imaging

# publications[].label
Rapid MR Scanner Independent B1 Field Measurement System for Phased Arrays

# publications[].label
AN INTEGRATED MICROFLUIDIC CRYO-COOLED PLANAR COIL SYSTEM FOR MAGNETIC RESONANCE IMAGING (MRI)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Highly parallel transmit/receive systems for dynamic MRI.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 64-channel transmitter for investigating parallel transmit MRI.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Comparison of local and global arrays for MRI

# publications[].label
An inductively coupled, doubly tuned resonator for in vivo nuclear magnetic resonance spectroscopy

# publications[].label
MR IMAGING AND SPECTROSCOPY FOR BIOMARKER CHARACTERIZATION IN GOLDEN RETRIEVER MUSCULAR DYSTROPHY TISSUE SAMPLES

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
SERIAL transmit - parallel receive (STxPRx) MR imaging produces acceptable proton image uniformity without compromising field of view or SAR guidelines for human neuroimaging at 9.4 Tesla.

# publications[].label
Coil effect on k-space line selection in highly accelerated parallel imaging

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Overcoming phase effects of voxel-sized coils in planar and cylindrical arrays.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
RF coil arrays for magnetic resonance imaging

# publications[].label
Theory and application of array coils in MR spectroscopy.

# publications[].label
Automated Measurement System For Characterization of RF Coils

# publications[].label
System and method for operating transmit or transmit/receive elements in an MR system

# publications[].label
A Novel Voltage Controlled Decoupling Method for Transmit Coils in MRI

# publications[].label
A flow quantification method using fluid dynamics regularization and MR tagging.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Switched-Mode Breast Coil for 7 T MRI Using Forced-Current Excitation.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
2-D full wave solution for the analysis and design of birdcage coils

# publications[].label
An automated measurement system for characterization of RF and gradient coil parameters.

# publications[].label
Full-wave analysis of planar radiofrequency coils and coil arrays with assumed current distribution

# publications[].label
EIGHT-CHANNEL TRANSMIT/RECEIVE HEAD ARRAY FOR USE WITH ULTRA-LOW OUTPUT IMPEDANCE AMPLIFIERS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Flexible RF Filtering Front-End For Simultaneous Multinuclear MR Spectroscopy.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Using Large Arrays for SNR Improvement on Receiver Limited MRI Systems.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Magnetic resonance imaging using a reduced number of echo acquisitions

# publications[].label
A 16-Channel 13C Array Coil for Magnetic Resonance Spectroscopy of the Breast at 7T.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Parallel MR Imaging with Accelerations Beyond the Number of Receiver Channels Using Real Image Reconstruction.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Wideband receive-coil array design using high-impedance amplifiers for broadband decoupling.

# publications[].label
Investigation of coil phase compensation in 3D imaging at very high acceleration factors.

# publications[].label
A frequency translation approach for multichannel (13)C spectroscopy.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A LABVIEW-BASED OPERATING SYSTEM FOR PARALLEL TRANSMIT SYSTEMS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A desktop magnetic resonance imaging system.

# publications[].label
A four-channel time domain multiplexer: a cost-effective alternative to multiple receivers.

# publications[].label
Arrays of mutually coupled receiver coils: theory and application.

# publications[].label
Novel method to estimate and display cerebral cortical degeneration using diffusion-weighted magnetic resonance imaging.

# publications[].label
Eight channel transmit array volume coil using on-coil radiofrequency current sources.

# researcherOn[].label
Low-complexity decoupling of multi-frequency arrays for magnetic resonance imaging and spectroscopy using operational amplifiers

# researcherOn[].awardedBy.label
National Institutes of Health - (Bethesda, Maryland, United States)

# researcherOn[].awardedBy.preferredLabel
DHHS-NIH-National Institute of BioMedical Imaging and BioEngineering

# researcherOn[].label
EAGER:Development of a Novel MRI Compatible Shock Tube and Method for the Study of Blast Induced Traumatic Brain Injury

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].label
Brain-Behavior Markers of Negative Affectivity, Comorbidity in Anxiety Disorders

# researcherOn[].awardedBy.label
National Institutes of Health - (Bethesda, Maryland, United States)

# researcherOn[].awardedBy.preferredLabel
DHHS-NIH-National Institute of Mental Health

# researcherOn[].label
Sixteen Channel Carbon-13 Phased Array Spectroscopy at 7 Tesla

# researcherOn[].awardedBy.label
National Institutes of Health - (Bethesda, Maryland, United States)

# researcherOn[].label
A Body Coil for MR Imaging and Spectroscopy of Cancer at 7 Tesla

# researcherOn[].awardedBy.label
Cancer Prevention and Research Institute of Texas - (Austin, Texas, United States)

# researcherOn[].label
Positive Contrast MRI of the Small Interventional Devices

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].label
Localized Finishing of Freeform Geometries using Dynamic Magnetic Field-Manipulated Magneto-Viscoelastic Fluids

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# streetAddress
Texas A&M University; Electrical Engineering; 3128 TAMU

# etdChairOf[].label
Bosshard, John 1983- (2012-08). Highly Parallel Magnetic Resonance Imaging with a Fourth Gradient Channel for Compensation of RF Phase Patterns. Doctoral Dissertation.

# etdChairOf[].label
Hollingsworth, Neal Anthony (2016-12). Isolating Power Amplifiers for Parallel Transmit MRI. Doctoral Dissertation.

# etdChairOf[].label
Feng, Ke (2012-10). A 64 Channel Transmit System for Single Echo Acquisition MRI. Doctoral Dissertation.

# etdChairOf[].label
Brown, David Gerald (2007-04). Instrumentation for parallel magnetic resonance imaging. Doctoral Dissertation.

# etdChairOf[].label
Liu, Xiaoqun (2009-05). Design of multi-channel radio-frequency front-end for 200mhz parallel magnetic resonance imaging. Doctoral Dissertation.

# etdChairOf[].label
Spence, Dan Kenrick (2007-09). Array combination for parallel imaging in Magnetic Resonance Imaging. Doctoral Dissertation.

# etdChairOf[].label
Kurpad, Krishna Nagaraj (2005-11). Transmit field pattern control for high field magnetic resonance imaging with integrated RF current sources. Doctoral Dissertation.

# etdChairOf[].label
El Ghamrawy, Ahmed (2013-12). A Small Scale Magnetic Particle Relaxometer. Master's Thesis.

# etdChairOf[].label
Godley, Richard Franklin (2012-10). Investigation of Cryo-Cooled Microcoils for MRI. Master's Thesis.

# etdChairOf[].label
Ayala, Julio Enqrique, II (2007-04). A 200-MHz fully-differential CMOS front-end with an on-chip inductor for magnetic resonance imaging. Master's Thesis.

# etdChairOf[].label
Kampani, Vishal Virendra (2008-10). A high-pass detunable quadrature birdcage coil at high-field. Master's Thesis.

# etdChairOf[].label
Shah, Bijay Kamleshbhai (2009-05). A study of array snr and coupling as a function of the input impedance of preamplifier. Master's Thesis.

# etdChairOf[].label
Dominick, Colleen Elizabeth (2006-10). An investigation of array elements for enhanced single echo acquisition imaging. Master's Thesis.

# etdChairOf[].label
McDougall, Mary Preston (2006-04). Single echo acquisition magnetic resonance imaging. Doctoral Dissertation.

# etdChairOf[].label
Yallapragada, Naresh (2009-05). A 64-channel personal computer based image reconstruction system and applications in single echo acquisition magnetic resonance elastography and ultra-fast magnetic resonance imaging.. Doctoral Dissertation.