[Insight-users] 2d - 3d registration

[N.E Mackenzie-Mackay]

This might seem like a simple question.

To register a 2d slice to a 3d volume ( set of slices ) say using the 
MeanSquaresImageToImageMeric. Is it just a matter of specifying the 
dimensions of the images.

	eg.  typedef itk::Image<float, 3> FixedImageType	//3d slices
		typedef itk::Image<float, 2> MovingImageType		//2d image

		.....

		typedef itk::MeanSquaresImageToImageMeric<FixedImageType, 
MovingImageType >   MetricType

Would this be correct or is there a different method I have completely 
overlooked?