Document Detail

Assessment of computerized tomography density patterns of ameloblastomas and keratocystic odontogenic tumors.
MedLine Citation:
PMID:  19464213     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to evaluate computerized tomography (CT) density patterns of solid ameloblastomas (SA), unicystic ameloblastomas (UA), and sporadic and multiple keratocystic odontogenic tumors (SK and MK, respectively). A region of interest (ROI) was delimited corresponding to almost the entire lesional area on each axial slice of 25 CT exams. For each ROI, CT values (HU(ROI)) and heterogeneity (HTG(ROI)) were recorded and compared among lesion groups as well as among central and peripheral slices of the same lesion. The average HU(ROI) were: SA 35.9 +/- 12.6; UA 31.0 +/- 6.0; SK 28.4 +/- 10.5; and MK 30.5 +/- 20.6. SK and MK had the lowest CT values and highest heterogeneity. SA and UA did not show statistical difference for HU(ROI). However, SA had greater HTG(ROI) values. SA presented a different pattern when the central slices were compared with the peripheral slices. HU(ROI) was higher, whereas HTG(ROI) was lower, among the central slices of SA.
Ieda Cruso??-Rebello; Christiano Oliveira; Paulo S??rgio Flores Campos; Roberto Almeida Azevedo; Jean Nunes dos Santos
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-05-22
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  108     ISSN:  1528-395X     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-09-25     Completed Date:  2009-12-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  604-8     Citation Subset:  D; IM    
Department of Oral and Maxillofacial Radiology, School of Dentistry, Federal University of Bahia, Salvador, Brazil.
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MeSH Terms
Absorptiometry, Photon / methods
Ameloblastoma / classification,  radiography*
Image Processing, Computer-Assisted / methods
Jaw Neoplasms / radiography*
Middle Aged
Odontogenic Tumors / classification,  radiography*
Radiographic Image Enhancement / methods
Retrospective Studies
Tomography, Spiral Computed / methods
Tomography, X-Ray Computed / methods*
Young Adult

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