Title: Semi-automated ultrasound facial soft tissue depth registration: method and validation
Authors: De Greef, Sven ×
Claes, Peter
Mollemans, Wouter
Loubele, Miet
Vandermeulen, Dirk
Suetens, Paul
Willems, Guy #
Issue Date: Nov-2005
Series Title: Journal of Forensic Sciences vol:50 issue:6 pages:1282-1288
Abstract: A mobile and fast, semi-automatic ultrasound (US) system was developed for facial soft tissue depth registration. The system consists of an A-Scan ultrasound device connected to a portable PC with interfacing and controlling software. For 52 cephalometric landmarks, the system was tested for repeatability and accuracy by evaluating intra-observer agreement and comparing ultrasound and CT-scan results on 12 subjects planned for craniofacial surgery, respectively. A paired t-test evaluating repeatability of the ultrasound measurements showed 5.7% (n = 3) of the landmarks being significantly different (p < 0.01). US and CT-scan results showed significant differences (p < 0.01) using a Wilcoxon signed rank test analysis for 11.5% (n = 6) of the landmarks. This is attributed to a difference in the volunteer's head position between lying (CT) and sitting (US). Based on these tests, we conclude that the proposed registration system and measurement protocol allows relatively fast (52 landmarks/20 min), non-invasive, repeatable and accurate acquisition of facial soft tissue depth measurements.
Description: De Greef S., Claes P., Mollemans W., Loubele M., Vandermeulen D., Suetens P., Willems G., ''Semi-automated ultrasound facial soft tissue depth registration : method and validation'', Journal of forensic sciences, vol. 50, no. 6, pp. 1282-1288, November 2005.
ISSN: 0022-1198
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - PSI, Processing Speech and Images
Forensic Dentistry
× corresponding author
# (joint) last author

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