Which coil is used for brain MRI?

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Multiple Choice

Which coil is used for brain MRI?

Explanation:
Maximizing signal-to-noise ratio and uniform coverage around the brain is essential in brain MRI. A dedicated head coil wraps around the skull, placing many receive elements very close to brain tissue. This proximity dramatically boosts SNR and provides more uniform sensitivity across the entire brain, improving image quality and enabling high-resolution scans. In comparison, a body coil sits farther from the brain, yielding lower SNR and less uniformity; a surface or circumferential whole-volume coil may have strong signal near the surface but struggles to cover deeper structures evenly. A gamma camera is used for nuclear medicine, not MRI. Therefore, the head coil best serves brain MRI.

Maximizing signal-to-noise ratio and uniform coverage around the brain is essential in brain MRI. A dedicated head coil wraps around the skull, placing many receive elements very close to brain tissue. This proximity dramatically boosts SNR and provides more uniform sensitivity across the entire brain, improving image quality and enabling high-resolution scans. In comparison, a body coil sits farther from the brain, yielding lower SNR and less uniformity; a surface or circumferential whole-volume coil may have strong signal near the surface but struggles to cover deeper structures evenly. A gamma camera is used for nuclear medicine, not MRI. Therefore, the head coil best serves brain MRI.

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