Yang, Y.; Lu, M.; Yan, X. “Frequency-independent dual-tuned cable traps for multi-nuclear MRI and MRS.” Journal of Magnetic Resonance, Volume 368, 2024, Article 107786, DOI: 10.1016/j.jmr.2024.107786.
MRI and MRS scans often require two systems: one for regular hydrogen imaging (used to map anatomy) and another for special scans of other nuclei (X-nuclei). To prevent interference between these systems, devices called cable traps block unwanted electrical currents.
This study introduces a new type of cable trap that works for both systems without needing separate traps. It combines two types of traps to block high and low frequencies independently but efficiently. Tests and simulations showed that the best setup uses one type of trap for the special X-nuclei system and another for the regular hydrogen system. This design proved effective across different conditions, improving safety, image quality, and versatility for advanced MRI scans.
Fig. 1. (A) Illustration of standard solenoid cable trap [35]. (B) Illustration of float solenoid balun [36]. (C) Illustration of frequency-independent dual-tuned cable trap.