<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Dear H. B.,<div><br></div><div>I don't think there are series of PNG images available on the web for the purpose of volume</div><div><br></div><div>construction but you can easily convert series of DICOM images to the PNG format using the </div><div><br></div><div>ITK then construct a volume.</div><div><br></div><div>Best Regards,</div><div><br></div><div>Masslawi.</div></td></tr></table><br>