An improved saddle coil for MR imaging in resistive magnet systems

Area of Science:

• Medical Imaging
• Electrical Engineering
• Physics

Background:

• Radiofrequency (RF) coils are crucial components in magnetic resonance (MR) imaging systems.
• Traditional RF coils often use wire conductors, which can limit design flexibility and performance.
• Improving coil design can enhance image quality and patient comfort.

Purpose of the Study:

• To present the design of a novel two-turn radiofrequency coil for MR imaging at 0.15 Tesla.
• To evaluate the performance of a copper tube conductor compared to traditional wire conductors.
• To assess the impact of the new design on patient-friendliness and signal quality.

Main Methods:

• Designed a two-turn radiofrequency coil using copper tubing as the conductor material.
• Ensured proper isolation of the copper tube conductor.
• Compared the performance (Q value, signal-to-noise ratio) of the tube-type coil with a geometrically similar wire-type coil.

Main Results:

• The copper tube conductor enabled an open and patient-friendly coil construction.
• The tube-type coil demonstrated a higher Q value compared to the wire-type coil.
• The signal-to-noise ratio was significantly increased in the tube-type coil relative to the wire-type coil.

Conclusions:

• The use of copper tubing in RF coil design offers significant advantages over traditional wire conductors.
• This innovative design enhances both the technical performance and patient experience in low-field MR imaging.
• The improved Q value and signal-to-noise ratio contribute to better diagnostic imaging quality.