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Magnetic resonance imaging of spin systems combines scientific applicationsin medicine, chemistry and physics. Here, we investigate the pixel-wisecoherent quantum dynamics of spins consisting of a 40 by 40 micron sized regionof interest implanted with nitrogen vacancy centers (NV) coupled to anano-magnetic flake of $\mathrm{CrTe_2}$. $\mathrm{CrTe_2}$ is an in-plane vander Waals ferromagnet, which we can probe quantitatively by the NV electron'sspin signal even at room temperature. First, we combine the nano-scale sampleshapes measured by atomic force microscope with the magnetic resonance imagingdata. We then map out the coherent dynamics of the colour centers coupled tothe van der Waals ferromagnet using pixel-wise coherent Rabi and Ramsey imagingof the NV sensor layer. Next, we fit the pixel-wise solution of the Hamiltonianto the quantum sensor data. Combining data and model, we can explore thedetuning range of the spin oscillation with a quantum dynamic range of over$\left|\Delta_{max}\right|= 60 { }\mathrm{MHz} $ in the Ramsey interferometrymode. Finally, we show the effect of the $\mathrm{CrTe_2}$ van der Waals magneton the coherence of the NV sensor layer and measure a 70 times increase in themaximum frequency of the quantum oscillation going from the Rabi to the Ramseyimaging mode.

The quantum dynamic range of room temperature spin imaging