Abstract
In this study, we describe a method to obtain improved preamplifier decoupling for receive-only coils. The method relies on the better decoupling obtained when coils are matched to an impedance higher than 50 . Preamplifiers with inductive imaginary impedance and low real impedance, increase the effectiveness of the decoupling. A 2-channel 13C array of 50 mm loop coils show an increase of Q-factor of the coils from 247 to 365. The measured SNR, using two small phantoms, demonstrated a similar improvement.
| Original language | English |
|---|---|
| Publication date | 2017 |
| Number of pages | 3 |
| Publication status | Published - 2017 |
| Event | ISMRM 25th Annual Meeting & Exhibition - Hawai'i Convention Center, Honolulu, United States Duration: 22 Apr 2017 → 27 Apr 2017 |
Conference
| Conference | ISMRM 25th Annual Meeting & Exhibition |
|---|---|
| Location | Hawai'i Convention Center |
| Country | United States |
| City | Honolulu |
| Period | 22/04/2017 → 27/04/2017 |
Bibliographical note
http://indexsmart.mirasmart.com/ISMRM2017/PDFfiles/2711.htmlCite this
Sanchez, J. D., Johansen, D. H., Hansen, R. B., Hansen, E. S., Laustsen, C., Zhurbenko, V., & Ardenkjær-Larsen, J. H. (2017). Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance. Abstract from ISMRM 25th Annual Meeting & Exhibition, Honolulu, United States.