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Three-dimensional models for head and neck tumor treatment planning
D W Eisele1, W J Richtsmeier, J C Graybeal
1Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, MD 21203-6402.
The Laryngoscope
|April 1, 1994
Summary
Head and neck surgeons can use two maxillofacial models for tumor patients: 3D CT mandibular models and dental impression maxilla models. Both offer valuable preoperative planning and visualization, despite some limitations.
Area of Science:
- Maxillofacial Surgery
- Medical Imaging
- Oncology
Background:
- Head and neck surgeons require accurate patient models for complex oncologic resections and reconstructions.
- Traditional imaging methods may not fully reveal segmental relationships or tumor extent in maxillofacial cases.
Observation:
- Two practical maxillofacial model systems were evaluated: a 3D CT-reconstructed plastic mandibular model and a dental impression maxilla model.
- The 3D CT model is technology-intensive and costly, while the dental impression model is simpler but limited in scope.
Findings:
- Both 3D models provide crucial segmental mandibular relationships obscured by oncologic restrictions or prior surgery.
- These models facilitate preoperative reconstructive planning, including prosthesis design and visualization of tumor extent beyond 2D imaging.
- They also serve as permanent records for future surgical needs or reconstructions.
Implications:
- These 3D models offer significant practical value for head and neck tumor patients, aiding in surgical planning and patient care.
- Despite disadvantages like cost and potential inaccuracies, their utility in selected cases is substantial.
- Enhanced visualization and planning capabilities can lead to improved surgical outcomes in complex maxillofacial oncology.