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A Morphometric and Cellular Analysis Method for the Murine Mandibular Condyle
Published on: January 11, 2018
Visual perception of multilocular radiolucent mandibular lesions quantified by morphometric analysis
R Raitz1, A L V Rodrigues, V C R Reis
1São Leopoldo Mandic, Dental Research Insitute, Campinas, São Paolo, Brazil. ricardoraitz@ig.com.br
Dento Maxillo Facial Radiology
|July 31, 2012
Summary
Expert perception of multilocular radiolucent lesions, such as ameloblastomas (AMELs) and keratocystic odontogenic tumors (KOTs), differs based on diagnostic knowledge. Stomatologists/oral surgeons (SS) showed greater changes in lesion delimitation than dental radiologists (R) when diagnosis was known.
Area of Science:
- Oral pathology and radiology
- Diagnostic imaging interpretation
- Expert visual perception analysis
Background:
- Multilocular radiolucent lesions pose diagnostic challenges in dentistry.
- Accurate lesion delineation is crucial for appropriate treatment planning.
- Previous studies have explored lesion characteristics but less on expert visual perception variability.
Purpose of the Study:
- To analyze how expert visual perception of multilocular radiolucent lesions differs when the diagnosis is known versus unknown.
- To quantify morphometric differences in lesion delimitation by dental specialists.
Main Methods:
- Six radiographs of ameloblastomas (AMELs), keratocystic odontogenic tumors (KOTs), central giant cell lesions (CGCLs), and myxomas (MIXs) were analyzed.
- 16 dental experts (stomatologists/oral surgeons [SS] and dental radiologists [R]) delimited lesions twice: before (T1) and after (T2) knowing the histopathological diagnosis.
- Morphometric parameters (Area, Perimeter, Shape Factor) and Exclusive Area (EA) were calculated.
Main Results:
- Lesion area (T2) was larger than (T1) for both expert groups.
- The stomatologists/oral surgeons (SS) group had a higher exclusive area (EA) than the dental radiologists (R) group, irrespective of lesion type.
- Shape factor (SF) values were higher at T2 for both groups, with AMELs and MIXs showing larger SF and Area values.
Conclusions:
- Expert knowledge of the diagnosis significantly influences the perception and delimitation of radiolucent lesions.
- Differences in spatial perception exist between stomatologists/oral surgeons and dental radiologists.
- The study methodology effectively quantified variations in professional spatial perception, independent of lesion biology.
