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Facial Plast Surg 2021; 37(03): 395-399
DOI: 10.1055/s-0041-1725166
Original Research

Performing Distance Measurements in Curved Facial Regions: A Comparison between Three-Dimensional Surface Scanning and Ultrasound Imaging

Michael Alfertshofer
1   Department of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilian University, Munich, Germany
,
Konstantin Frank
1   Department of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilian University, Munich, Germany
,
Dmitry V. Melnikov
2   Plastic Surgery Department, I. M. Sechenov First Moscow State Medical University, Moscow, Russia
,
Nicholas Möllhoff
1   Department of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilian University, Munich, Germany
,
Robert H. Gotkin
3   Private Practice, New York City, New York
,
David Lysander Freytag
1   Department of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilian University, Munich, Germany
,
Stephan Heisinger
4   Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Wien, Austria
,
Riccardo E. Giunta
1   Department of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilian University, Munich, Germany
,
Thilo L. Schenck
1   Department of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilian University, Munich, Germany
,
Sebastian Cotofana
5   Department of Medical Education, Albany Medical College, Albany, New York
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Abstract

Facial flap surgery depends strongly on thorough preoperative planning and precise surgical performance. To increase the dimensional accuracy of transferred facial flaps, the methods of ultrasound and three-dimensional (3D) surface scanning offer great possibilities. This study aimed to compare different methods of measuring distances in the facial region and where they can be used reliably. The study population consisted of 20 volunteers (10 males and 10 females) with a mean age of 26.7 ± 7.2 years and a mean body mass index of 22.6 ± 2.2 kg/m2. Adhesives with a standardized length of 20 mm were measured in various facial regions through ultrasound and 3D surface scans, and the results were compared. Regardless of the facial region, the mean length measured through ultrasound was 18.83 mm, whereas it was 19.89 mm for 3D surface scans, with both p < 0.0001. Thus, the mean difference was 1.17 mm for ultrasound measurements and 0.11 mm for 3D surface scans. Curved facial regions show a great complexity when it comes to measuring distances due to the concavity and convexity of the face. Distance measurements through 3D surface scanning showed more accurate distances than the ultrasound measurement. Especially in “complex” facial regions (e.g., glabella region and labiomental sulcus), the 3D surface scanning showed clear advantages.

Keywords

ultrasound imaging - 3D surface scanning - facial anatomy - facial analysis


Publication History

Article published online:
11 March 2021

© 2021. Thieme. All rights reserved.

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