print 'pt_id {}: VOI JSON file was NOT found!'.format(pt_id)
        continue

    for jj in voi_lps_paths:
        # determine breast side
        info_fname = os.path.basename(jj)
        check = re.search(r'{}_(\w+)_(\d+).info.json'.format(pt_id),
                          info_fname)
        if check:
            breast_side = check.group(1)
        else:
            print 'pt_id {}: cannot determine breast side!'.format(pt_id)
        print 'breast_side: {}'.format(breast_side)

        # initialize a Dataframe for each patient data chunk
        CENTER, HALFLENGTHS, time_sorted_IMNAMES = ImSeg.GetImInfo(jj)

        # DMI MRI volumes (from brtool output)
        pt_series_dir = glob.glob('{}/{:0>3d}/*/*'.format(imdir, pt_id))[0]
        pt_dmi_list = [
            '{}/dce/{}'.format(pt_series_dir, ff) for ff in time_sorted_IMNAMES
        ]

        print 'image file dmi name: {}'.format(pt_dmi_list[0])
        dceSeries = dmi.DMI(pt_dmi_list[0])
        mri_itk_img = ITKImageHelper.generate_oriented_itkImage(dceSeries)
        IG_mri_img = image_geometry.ImageGeometry(mri_itk_img)
        voxsize = IG_mri_img.samplingRCS

        for ii in range(len(voxsize)):
            tmp_dict = {}