Figure 1:

B₀ dependence of MM acquired in vivo using ¹H MRS.

(A) Dependence of M_0.94 signal linewidth on B₀ with linewidth expressed in Hz;

(B) Dependence of M_0.94 signal linewidth on B₀ with linewidth expressed in ppm. Lines calculated for parameters T₂ = 32 ms and Δν* = 4.73 Hz/T. Experimental values were assessed using spectra from the CMRR database, spectra provided by co-authors of this paper and spectra from papers^{27,58,80,81,136}. Blue symbols: human MM spectra, red symbols: animal MM spectra.

(C) MM spectra acquired in vivo from the brain of different species at 9.4 T and from human and rat brain at different B₀ showing noticeable increased spectroscopic resolution

Spectra are from the following centres: CIBM-EPFL (Centre d’Imagerie Biomedicale, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland), CMRR (Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, USA), Max Planck Institute for Biological Cybernetics (Tuebingen, Germany).

Spectra are available online here: https://forum.mrshub.org/t/data-submission-mm-consensus-data-collection/92