Zero-filling and apodization: their effects on spectral integrals in noisy MR spectroscopy

Zero-filling and apodization alter spectral integral values in noisy discrete Fourier-transform spectroscopy, directly impacting quantitative MRI measurements derived from peak areas.

• Educational article explaining how zero-filling (interpolation) and apodization (filtering) influence the area under spectral peaks in MR spectroscopy, a foundational concept for quantitative imaging.
• Discusses trade-offs between improving apparent resolution via zero-filling and managing signal-to-noise ratio through apodization, with practical implications for spectral analysis.

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