How can I save all slices from 3D image?

I am using this code but not working good it save only one slice

for i=1:45
    slice=Myimage(:,:,i);
    saveas(gcf,'slice_i.png')
end

[Haytham Ali]

@Image Analyst

Answer 1

[KSSV]

for i=1:45
    slice=Myimage(:,:,i);
    pcolor(slice) ; shading interp 
    fname = ['slice_',num2str(i),'.png'] ;
    saveas(gcf,fname)
end