Abstract
Motivation
While preamplifier decoupling is a widely accepted technique, which is based on impedance mismatching, it appears counter-intuitive and still introduces confusion in the MRI community and scientists, who are not electrical engineers by training.
Goals
This work aims to develop a simulation setup, which clearly illustrates the signal-to-noise ratio (SNR) in preamplifier decoupled and power matched receive coils.
Approach
Circuit simulations are used to compare SNR at the output of power matched and preamplifier decoupled coils in 3T MRI systems.
Results
The networks yield similar SNR, despite having significantly different input reflection coefficients; demonstrating that preamplifier decoupling and power matching approaches lead to equivalent SNR.
Impact
The developed demonstrator is useful in understanding properties of preamplifier decoupling and breaking down a range of associated misconceptions. This can facilitate mastering a proper use of this decoupling method.
While preamplifier decoupling is a widely accepted technique, which is based on impedance mismatching, it appears counter-intuitive and still introduces confusion in the MRI community and scientists, who are not electrical engineers by training.
Goals
This work aims to develop a simulation setup, which clearly illustrates the signal-to-noise ratio (SNR) in preamplifier decoupled and power matched receive coils.
Approach
Circuit simulations are used to compare SNR at the output of power matched and preamplifier decoupled coils in 3T MRI systems.
Results
The networks yield similar SNR, despite having significantly different input reflection coefficients; demonstrating that preamplifier decoupling and power matching approaches lead to equivalent SNR.
Impact
The developed demonstrator is useful in understanding properties of preamplifier decoupling and breaking down a range of associated misconceptions. This can facilitate mastering a proper use of this decoupling method.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2024 ISMRM |
| Number of pages | 7 |
| Publisher | The International Society for Magnetic Resonance in Medicine |
| Publication date | 2024 |
| Publication status | Published - 2024 |
| Event | 2024 ISMRM & ISMRT Annual Meeting & Exhibition - Singapore, Singapore Duration: 4 May 2024 → 9 May 2024 https://www.ismrm.org/24m/ |
Conference
| Conference | 2024 ISMRM & ISMRT Annual Meeting & Exhibition |
|---|---|
| Country/Territory | Singapore |
| City | Singapore |
| Period | 04/05/2024 → 09/05/2024 |
| Internet address |
| Series | International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition. Proceedings |
|---|---|
| ISSN | 1524-6965 |
Keywords
- RF Arrays & Systems
- Non-Array RF Coils
- Antennas & Waveguides
- Preamplifiers
- Preamplifier decoupling
- Power matching
- Noise matching
- Matching networks