¹ H-¹³ C independently tuned radiofrequency surface coil applied for in vivo hyperpolarized MRI.

ABSTRACT:

Purpose

To develop a lump-element double-tuned common-mode-differential-mode (CMDM) radiofrequency (RF) surface coil with independent frequency tuning capacity for MRS and MRI applications.

Methods

The presented design has two modes that can operate with different current paths, allowing independent frequency adjustment. The coil prototype was tested on the bench and then examined in phantom and in vivo experiments.

Results

Standard deviations of frequency and impedance fluctuations measured in one resonator, while changing the tuning capacitor of another resonator, were less than 13 kHz and 0.55 Ω. The unloaded S21 was -36 dB and -41 dB, while the unloaded Q factor was 260 and 287, for ¹³ C and ¹ H, respectively. In vivo hyperpolarized ^13</

SUBMITTER: Cao P 

PROVIDER: S-EPMC4879596 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature