Proposal for Adding MRIRadiofrequencyCoilType to Control Term (needed for Neuroimaging Extension) #365
Description
There is a final control term missing from the Neurimaging extension.
We need a control term for Coil Type used in MRI image acquisition. Currently, this is named: MRIRadiofrequencyCoilType
In DICOM, it is available for both receiver -tag (0018,9043)- and transmit -tag (0018,9051)- coils.
They have folwing types:
- BODY
- VOLUME
head, extremity, etc. - SURFACE
- MULTICOIL
I suggest adding the control term with follwing types:
| Category | Examples / Typical Terms | Description |
|---|---|---|
| Body coil | Built-in body Tx coil, Body Tx/Rx | Integrated into the magnet bore; typically used as the default transmit coil, sometimes for both Tx/Rx (esp. at low field). Provides uniform excitation but lower SNR for reception compared to surface/array coils. |
| Volume coils | Birdcage, TEM, Quadrature | Encloses the imaging volume; can be transmit-only, receive-only, or both (Tx/Rx). Often used for head or torso scans. |
| Surface coils | Single-loop, Flexible pad | Placed near the region of interest; usually receive-only; high SNR in shallow depth. |
| Array coils | 8-channel head coil, 32-channel torso array | Multiple small coil elements combined for parallel imaging and high SNR. |
| Dedicated coils | Knee coil, Wrist coil, Breast coil | Optimized shape for specific anatomy; can be volume or array types. |
| Phased-array coils | 8-ch spine array, 16-ch neurovascular | Multiple receive elements covering large areas while maintaining high SNR. |
| Transmit–receive (Tx/Rx) coils | Body Tx/Rx coil, Surface Tx/Rx loop | Coil handles both RF transmission and reception; often used in low-field or interventional MRI. |
| Endocavitary coils | Endorectal coil, Endovaginal coil | Very small coils placed internally for ultra-high SNR near target tissue. |
The problem is that transmit–receive is orthogonal to the others, so deciphering it is a little tricky.