Hi Balaji,<br><br>fslswapdim (a command line program which comes as part of fsl) should solve your orientation problems.<br>If you have fsl installed (which you should do!) then typing <br>fslswapdim input_volume_name -x output_volume_name <br>

into the terminal should swap RAS to LAS and vice versa. <br><br>Or you can just type in <br>fslswapdim into the terminal to get help. <br><br>Best of luck!<br><br>Sean<br>