Evaluation of internal MRI coils using ultimate intrinsic SNR.
The upper bounds of the signal-to-noise ratio (also known as the "ultimate intrinsic signal-to-noise ratio" (UISNR)) for internal and external coils were calculated. In the calculation, the body was modeled as a dielectric cylinder with a small coaxial cylindrical cavity in which internal coils could be placed. The calculated UISNR values can be used as reference solutions to evaluate the performance of internal MRI coils. As examples, we evaluated the performance of a loopless antenna and an endourethral coil design by comparing their ISNR with the UISNR.
Celik
Haydar
H
Department of Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey.
Eryaman
Yigitcan
Y
Altintaş
Ayhan
A
Abdel-Hafez
I A
IA
Atalar
Ergin
E
D003198:Computer Simulation; D004867:Equipment Design; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D019047:Phantoms, Imaging; D012815:Signal Processing, Computer-Assisted; D014521:Urethra