Procedural Development of RF Tx/Rx Circularly Polarized Birdcage Coil at 1.5T MR system

Magnetic resonance imaging (MRI) is a powerful medical diagnostic technique, which is relates nuclear magnetic resonance (NMR) phenomenon. In the medical diagnostic field, NMR is the absorption of radiofrequency (RF) energy by the nuclei of the human body's atoms, which are in the presence of an external static magnetic field. Radio frequency birdcage coils are widely used in clinical magnetic resonance imaging. Birdcage coils are basically volume coils and generally function as a radio-frequency (RF) coil useful for transmit and receive the signals in MRI systems. Birdcage coil can transmit RF pulse to the human body and receives the signal from human body for image reconstruction. For getting a better homogenous magnetic field (B1),the Birdcage volume coils are widely used. This paper proposing a designed of high pass birdcage coil for head scan and the methods for designing birdcage coil at 1.5TMR system. The birdcage is modeled in CST Studio to analyze the electromagnetic field and absorbedpower in the volume of interest, such as field homogeneity with Larmor frequency 63.87MHz. This paper presents a generalized electrical analysis of high pass birdcage coil used in MRI system.