The Frame Time (0018,1063) may need to be modified if frames in the new image are not a simple contiguous sequence from the original, and if they are irregular, then the Frame Time Vector (0018,1065) will need to be used in its place, with a corresponding change to the Frame Increment Pointer (0028,0009). This also needs careful consideration if non-consecutive frames are requested from an image with non-linearly spaced frames.