[Freesurfer] use different parameters of MRI DICOM

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Hello Freesurfer Developers,

I'm attempting to analyze data using freesurfer. The dataset we used includes two different series of MRI DICOM: The first series (n=562) was collected using the following paremeters: t1_fl3d (Voxel Size = 0.9×0.9×1.5mm, FOV = 220 mm, TR = 21ms, TE = 7.65ms, Flip Angle = 30⁰); The second series (n=300) : MPRAGE(Voxel Size = 1×1×1mm, FOV = 256mm, TR = 2300ms, TE = 2.98ms, Flip Angle = 9⁰). All brain MRIs were performed on the same 3.0T Siemens scanner. I'd like to know if it is accpetable to include both of these imagings in one analysis? Is there any pre-processing step need to be done? Thank you!

Yingzhe Wang