title: [Breast volume assessment based on 3D surface geometry: verification of the method using MR imaging].
abstract: Differences in breast volume and contour are subjectively estimated by surgeons. 3D surface imaging using 3D scanners provides objective breast volume quantification, but precision and accuracy of the method requires verification. Breast volumes of five test individuals were assessed using a 3D surface scanner. Magnetic resonance imaging (MRI) reference volumes were obtained to verify and compare the 3D scan measurements. The anatomical thorax wall curvature was segmented using MRI data and compared to the interpolated curvature of the posterior breast volume delimitation of 3D scan data. MRI showed higher measurement precision, mean deviation (expressed as percentage of volume) of 1.10+/-0.34% compared to 1.63+/-0.53% for the 3D scanner. Mean MRI [right (left) breasts: 638 (629)+/-143 (138) cc] and 3D scan [right (left) breasts: 493 (497)+/-112 (116) cc] breast volumes significantly correlated [right (left) breasts: r=0.982 (0.977), p=0.003 (0.004)]. The posterior thorax wall of the 3D scan model showed high agreement with the MRI thorax wall curvature [mean positive (negative) deviation: 0.33 (-0.17)+/-0.37 cm]. High correspondence and correlation of 3D scan data with MRI-based verifications support 3D surface imaging as sufficiently precise and accurate for breast volume measurements.
authors.affiliation: Arbeitsgruppe Computer Aided Plastic Surgery (CAPS), Klinik und Poliklinik für Plastische Chirurgie und Handchirurgie, Klinikum rechts der Isar, Technische Universität München, München, Deutschland.
authors.forename: Maximilian
authors.initials: M
authors.lastname: Eder
authors.forename: Armin
authors.initials: A
authors.lastname: Schneider
authors.forename: Hubertus
authors.initials: H
authors.lastname: Feussner
authors.forename: Alexander
authors.initials: A
authors.lastname: Zimmermann
authors.forename: Christoph
authors.initials: C
authors.lastname: Höhnke
authors.forename: Nikolaos A
authors.initials: NA
authors.lastname: Papadopulos
authors.forename: Laszlo
authors.initials: L
authors.lastname: Kovacs
mesh_terms: D000328:Adult; D001940:Breast / Q000033:anatomy & histology*; D003198:Computer Simulation; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008954:Models, Biological; D009929:Organ Size; D010781:Photography / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity