Adrenal Chemical Shift Calculator on MRI

Evaluate an adrenal nodule's behavior on MRI using chemical shift calculator

Adrenal MRI
What is the field strength of the MRI?

Note: To see the results, choose the field strength for MRI fill in in-phase and out-of-phase signal intensities for adrenal and spleen.

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ASII > 16.5% at 1.5T, is considered a lipid-rich adenoma

ASII > 1.7% at 3T, is considered a lipid-rich adenoma

ASII ≤ 16.5% at 1.5T, is considered indeterminant. Recommend follow-up with CT washout.

ASII ≤ 1.7% at 3T, is considered indeterminant. Recommend follow-up with CT washout.

ASR ≤ -35.9% at 1.5T, is considered a lipid-rich adenoma

ASR ≤ -17.2% at 3T, is considered a lipid-rich adenoma

ASR > -17.2% at 3T, is considered indeterminant. Recommend follow-up with CT washout.

ASR > -35.9% at 1.5T, is considered indeterminant. Recommend follow-up with CT washout.

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Reference:
  1. Adam, S. Z., Nikolaidis, P., Horowitz, J. M., Gabriel, H., Hammond, N. A., Patel, T., Yaghmai, V., & Miller, F. H. (2016). Chemical Shift MR Imaging of the Adrenal Gland: Principles, Pitfalls, and Applications. Radiographics : a review publication of the Radiological Society of North America, Inc, 36(2), 414–432. https://doi.org/10.1148/rg.2016150139

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