Title :
Simulation-driven design and optimization of RF coil arrays for MRI
Author :
Kozlov, M. ; Turner, Richard
Author_Institution :
Max Planck Inst. for Human Cognitive & Brain Sci., Leipzig, Germany
Abstract :
We provide recommendations for simulation-driven design and work-flow for magnetic resonance imaging RF transmit-coil arrays. To enable final decisions on array construction, accurate knowledge is needed of how the array transmit and safety measures depend on the array geometry, RF component losses, and the tuning and excitation conditions. If strong evidence is provided that array safety excitation efficiency is insensitive to tuning condition, head geometry and head position, the safety margin can be reduced, allowing shorter scan times.
Keywords :
antenna arrays; biomedical MRI; coils; optimisation; MRI; RF coil array optimization; RF component losses; array construction; array geometry; array safety excitation efficiency; excitation condition; head geometry; head position; magnetic resonance imaging RF transmit-coil; safety margin; simulation-driven design; tuning condition; work-flow; Adaptation models; Magnetic resonance imaging; Numerical models; Radio frequency; Safety; Solid modeling; Tuning; Antenna arrays; biomedical imaging; computational electromagnetics;
Conference_Titel :
Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2013 IEEE MTT-S International
Conference_Location :
Singapore
DOI :
10.1109/IMWS-BIO.2013.6756144