Department of Electrical and Electronics Engineering
Recent Submissions
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FEM Based design and simulation tool for MRI birdcage coils Including eigenfrequency analysis
(2012)Radio Frequency (RF) birdcage coils are widely used in Magnetic Resonance Imaging (MRI). Before the actual construction of the coil, not only calculating the capacitance value, which is necessary for the coil to resonate ... -
HMM Based behavior recognition of laboratory animals
(ICPR, 2012)In pharmacological experiments, a popular method to discover the effects of psychotherapeutic drugs is to monitor behaviors of laboratory mice subjected to drugs by cameras. Automating behavior analysis of laboratory ... -
Localizing the excitation to reduce scan time using nonlinear gradient fields
(ISMRM, 2012)elatively low SAR, but they cannot excite local regions and therefore causes long scan times. Although small volumes can be excited using multi-dimensional excitation pulses, such pulses are long and/or have relatively ... -
Decreasing SAR of a multi-dimensional central brightening inhomogeneity correction pulse using nonlinear gradient fields and VERSE
(ISMRM, 2012)To correct for B1 inhomogeneity artifacts, multi-dimensional pulses are widely used. However, such pulses increase SAR significantly. In this study, we compare, and combine two SAR reduction methods, the variable rate ... -
VERSE optimized multi-channel transmission
(ISMRM, 2012)Specific Absorption Rate (SAR) and B1 inhomoeneity are two main problems of high field Magnetic Resonance Imaging. Multi-channel transmit systems may be used to fight againts inhomogeneity problems. Variable Rate Selective ... -
Interactive real time inductively coupled catheter coil tracking using a transmit array system
(ISMRM, 2012)Inductively coupled catheter coils are advantageous for interventional procedures, since they require no connection to MR scanners, which reduces the difficulties such as device-handling and RF safety problems faced with ... -
Mode matrix tranceiver surface coil
(ISMRM, 2012)The concept of a mode matrix tranceiver surface coil for transmit array system is introduced. The coil performance is experimentally tested and the concept of mode matrix transmission is verified. -
Detection of MR signal during RF excitation using a transmit array system
(ISMRM, 2012)Concurrent RF transmission and signal reception is significant for applications including imaging species with ultra short T2 values, and measurement of spin properties during excitation. In this study, magnetic field ... -
Analysis of B1 mapping by Bloch Siegert Shift
(ISMRM, 2012)In this study, B1 mapping by the Bloch-Siegert shift is analyzed with simulations and experiments. The importance of the pulse duration and the crusher gradients are investigated. It is shown that the off-resonance pulse ... -
Physics and applications of defect structures in photonic crystals
(Springer, 2003)We propose and demonstrate a new type of propagation mechanism for electromagnetic waves in photonic band gap materials. Photons propagate through coupled cavities due to interaction between the highly localized neighboring ... -
Preface
(Springer, New York, 2016) -
A confidence ellipsoid approach for measurement cost minimization under Gaussian noise
(IEEE, 2012-06)The well-known problem of estimating an unknown deterministic parameter vector over a linear system subject to additive Gaussian noise is studied from the perspective of minimizing total sensor measurement cost under a ... -
Detection of MR signal during RF excitation using a transmit array system
(ISMRM, 2012-05)Most of conventional MRI applications are based on a time interleaved approach for RF excitation and signal detection. The idea of concurrent RF excitation and reception was implemented in a few recent studies using sideband ... -
Analysis of B1 mapping by Bloch Siegert shift
(ISMRM, 2012-05)The Bloch-Siegert shift is a new phase-based B1 mapping method [1]. This method utilizes the fact that for a large off-resonance frequency, square of the B1 field magnitude is proportional to the phase. In this study, ... -
Decreasing SAR of a multi-dimensional central brightening inhomogeneity correction pulse using nonlinear gradient fields and VERSE
(ISMRM, 2012-05)To correct for B1 inhomogeneity artifacts, multi-dimensional pulses are widely used. However, such pulses increase SAR significantly. In this study, we compare, and combine two SAR reduction methods, the variable rate ... -
On the stabilization of the wave equation
(Springer, 1993) -
Principles of feedback control
(Taylor & Francis, 2004)In this chapter, fundamental properties of feedback control are discussed with engineering applications in mind. However, feedback appears in many other disciplines, such as agriculture, biology, medicine, pharmaceutics, ... -
Positioning methods and technologies in mobile and pervasive computing
(IGI Global, 2015) -
The root locus method
(CRC Press, 2006)The root locus technique is a graphical tool used in feedback control system analysis and design. It has been formally introduced to the engineering community by W. R. Evans [3,4], who received the Richard E. Bellman Control ...
