def METHOD_NAME(DT_list, mesh_dir):
	if not os.path.exists(mesh_dir):
		os.makedirs(mesh_dir)
	mesh_files = []
	xml_filename = mesh_dir + "temp.xml"
	for input_file in DT_list:
		print('	' + get_prefix(input_file))
		output_vtk = mesh_dir + "original_" + get_prefix(input_file) + ".vtk"
		image = sw.Image(input_file)
		image.toMesh(isovalue=0).write(output_vtk)
		mesh_files.append(output_vtk)
	return sorted(mesh_files)