Publications by authors named "Bettina Holhweg-Majert"
Advanced malignant minor salivary glands tumors of the oral cavity.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
July 2009
Objective: Intraoral minor salivary gland carcinomas (MSGC) are rare tumors with different frequency, distribution, and prognostic factors relating to overall survival.
Study Design: From 1992 to 2006, a total of 95 patients with MSGC originating in the oral cavity were analyzed by univariate and multivariate analysis using the log-rank test and Cox-regression.
Results: Fifty-four percent of all patients had a low-grade disease and 46% had a high grade disease.
Comparison of 3 optical navigation systems for computer-aided maxillofacial surgery.
Arch Otolaryngol Head Neck Surg
October 2008
Objective: To compare the accuracy of 3 computer-aided surgery systems for maxillofacial reconstruction.
Design: Evaluation of 3 computer-aided surgery systems: StealthStation, VectorVision, and Voxim.
Setting: The University of California, Davis, Department of Otolaryngology computer-aided surgery laboratory.
Comparison of 4 registration strategies for computer-aided maxillofacial surgery.
Otolaryngol Head Neck Surg
July 2007
Article Synopsis
- Surgeons are utilizing computer-aided surgery (CAS) for maxillofacial reconstructive procedures, leading to the evaluation of four registration strategies for accuracy.
- Fifteen fiducial markers were placed on cadaver heads, and four different registration methods were tested, with measurements taken twice to assess the target registration error (TRE).
- Results indicated that invasive markers provided the highest accuracy, with mean TRE values decreasing for skin surface, bony landmarks, and intraoral splint methods, showing a clear hierarchy in effectiveness.