Title :
Hexagonal zero mode coil: a single channel multi-coil design for small animal magnetic resonance imaging
Author :
Lazovic-Stojkovic, Jelena ; Yang, Qing X. ; Collins, Christopher M. ; Liu, Wanzhan ; Vaughan, John Thomas ; Smith, Michael B.
Author_Institution :
Dept. of Radiol., Pennsylvania State Univ. Coll. of Med., Hershey, PA, USA
Abstract :
A new coil design for simultaneous multiple animal imaging based on the coaxial cavity is presented. The goal was to improve B1 field (radiofrequency magnetic field that is used to excite the spins) homogeneity, while retaining high signal to noise ratio (SNR) of the coaxial cavity coil. The difference in B1 field magnitude across the coil, measured experimentally as well as the one predicted on the basis of numerical calculation, is within 10%. The described design can be utilized to image 6 small animals simultaneously without great compromise in SNR
Keywords :
biological NMR; biological techniques; coils; B1 field homogeneity; B1 field magnitude difference; biophysical research instrumentation; coaxial cavity; hexagonal zero mode coil; numerical calculation; radiofrequency magnetic field; single channel multi-coil design; small animal magnetic resonance imaging; small animals; Animals; Capacitors; Coaxial components; Coils; Conductors; Finite difference methods; Magnetic resonance; Magnetic resonance imaging; Radio frequency; Signal to noise ratio;
Conference_Titel :
Bioengineering Conference, 2002. Proceedings of the IEEE 28th Annual Northeast
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-7419-3
DOI :
10.1109/NEBC.2002.999467
