Comparison of 1Tx32Rx and 8Tx32Rx Head Coils for 7T Neuroimaging

A 2026 study by Carina Graf compares the performance of 1Tx32Rx and 8Tx32Rx head coils for 7T MRI neuroimaging in six healthy volunteers. The dataset includes results from seven standard MRI sequences: B0 and B1+ mapping, anatomical T1-weighted MP2RAGE, R2*-mapping, single-voxel spectroscopy (MRS), echo-planar imaging time series, and diffusion tensor imaging (DTI). It finds comparable data quality between coils, with specific advantages for the 8Tx32Rx coil in certain regions and sequences.

Use Cases

• Analyze B1+ field improvements in inferior brain regions when using the 8Tx32Rx coil versus the 1Tx32Rx coil.
• Compare signal-to-noise ratio (SNR) in brainstem MRS data acquired with the two different head coil configurations.
• Evaluate white matter tract definition in DTI images from the 8Tx32Rx coil against the 1Tx32Rx coil.
• Assess spinal cord visibility in anatomical MP2RAGE scans across the two coil types.

Strengths

• Direct comparison of two commercially available head coil types (1Tx32Rx vs. 8Tx32Rx) for 7T MRI.
• Data collected from six healthy volunteers using seven standard neuroimaging sequences.
• Published under a permissive CC BY 4.0 license in 2026.

Limitations

• Small sample size of six volunteers limits statistical power and generalizability.
• Data is presented in a DOCX document (17.2 MB), not a structured, machine-readable tabular format.
• Study conducted on a single 7T MRI system model (Siemens MAGNETOM Terra), which may limit vendor applicability.

Provenance

Source

figshare, authored by Carina Graf.

Collection Method

Experimental comparison of head coil performance using seven unmodified MRI sequences on a Siemens MAGNETOM Terra 7T system.

Time Range

Study published in 2026.

Freshness

Last updated March 25, 2026.

Geography

Study location not specified; data likely from a single imaging centre.