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Proceedings Paper

Computer-assisted radiographic characterization of alloimplant materials used as bone substitutes in dentistry
Author(s): Naglaa Abdel-Wahed; Abdel-Wahab S. Ahmed; Adel Zein Elabedeen; Shabaan M. Gadallah; Nahed H. Solouma; Yasser M. Kadah
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Paper Abstract

We develop a computerized system for evaluation of alloimplant procedures in dentistry from x-ray images. The goal of this system is to help clinicians make more accurate evaluation of their surgical procedures as well as to guide them in selecting the most appropriate alloimplant material in an objective manner. A study was conducted whereby three types of alloimplant materials were inserted in surgical defects in the tibia of dogs. Each animal had four such defects for the three different materials in addition to a control defect that was intentionally left empty. The defect locations were imaged using x-rays at periodic intervals starting immediately after the operation. The animals were sacrificed at different times after the surgical operation. The acquired images were paired with their correct diagnosis and split into two sets representing the learning and testing data for our computerized system. The plain x-ray films were scanned using a standard film digitizer and standardized in size and intensity using a step wedge that was imaged beside the region of interest. A set of first and second order textural and radiometric parameters were extracted from each alloimplant location outlined by the radiographer to describe its clinical status in a quantitative manner.

Paper Details

Date Published: 15 May 2003
PDF: 11 pages
Proc. SPIE 5032, Medical Imaging 2003: Image Processing, (15 May 2003); doi: 10.1117/12.481887
Show Author Affiliations
Naglaa Abdel-Wahed, Cairo Univ. (Egypt)
Abdel-Wahab S. Ahmed, Cairo Univ. (Egypt)
Adel Zein Elabedeen, Cairo Univ. (Egypt)
Shabaan M. Gadallah, Cairo Univ. (Egypt)
Nahed H. Solouma, Cairo Univ. (Egypt)
Yasser M. Kadah, Emory Univ. (United States)
Georgia Tech Research Institute (United States)

Published in SPIE Proceedings Vol. 5032:
Medical Imaging 2003: Image Processing
Milan Sonka; J. Michael Fitzpatrick, Editor(s)

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