title: Evaluation of internal MRI coils using ultimate intrinsic SNR.
abstract: 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.
authors.affiliation: Department of Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey.
authors.forename: Haydar
authors.initials: H
authors.lastname: Celik
authors.forename: Yigitcan
authors.initials: Y
authors.lastname: Eryaman
authors.forename: Ayhan
authors.initials: A
authors.lastname: Altintaş
authors.forename: I A
authors.initials: IA
authors.lastname: Abdel-Hafez
authors.forename: Ergin
authors.initials: E
authors.lastname: Atalar
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D019047:Phantoms, Imaging; D012815:Signal Processing, Computer-Assisted; D014521:Urethra