Marsupialisation for keratocystic odontogenic tumours in the mandible: longitudinal image analysis of tumour size using 3D visualised CT scans

Marsupialisation for keratocystic odontogenic tumours in the mandible: longitudinal image analysis of tumour size using 3D visualised CT scans

Abstract The purpose of this study was to determine how keratocystic odontogenic tumours (KCOTs) in the mandible are reduced during marsupialisation, and to predict the best time for secondary enucleation by analysing computed tomography (CT) images. 15 patients with KCOTs were treated with marsupia...

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Bibliographic Details
Published in:International journal of oral and maxillofacial surgery Vol. 41; no. 3; pp. 290 - 296
Main Authors: Shudou, H, Sasaki, M, Yamashiro, T, Tsunomachi, S, Takenoshita, Y, Kubota, Y, Ninomiya, T, Kawazu, T, Mori, Y
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 01-03-2012
Elsevier
Subjects:
Adolescent
Adult
Algorithms
Biological and medical sciences
Curettage
Debridement
decompression
Decompression, Surgical
Dentistry
Female
Follow-Up Studies
Humans
Image Processing, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
keratocystic odontogenic tumour
Longitudinal Studies
Male
Mandible - diagnostic imaging
Mandible - surgery
Mandibular Neoplasms - diagnostic imaging
Mandibular Neoplasms - surgery
marsupialisation
Medical sciences
Middle Aged
Odontogenic Tumors - diagnostic imaging
Odontogenic Tumors - surgery
Osteogenesis - physiology
Otorhinolaryngology. Stomatology
Surgery
Time Factors
Tomography, X-Ray Computed - methods
Wound Healing - physiology
Young Adult
marsupialisation
decompression
keratocystic odontogenic tumour
Mandible
Radiodiagnosis
Stomatology
Size
Image analysis
Treatment
Odontogenic tumor
Follow up study
Surgery
Medical imagery
Computerized axial tomography
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Summary:Abstract The purpose of this study was to determine how keratocystic odontogenic tumours (KCOTs) in the mandible are reduced during marsupialisation, and to predict the best time for secondary enucleation by analysing computed tomography (CT) images. 15 patients with KCOTs were treated with marsupialisation surgery, and 42 series of CT data taken during the marsupialisation process were analysed. CT data were reconstructed in three-dimensional (3D) images. The 3D images were used to measure the diameter and volume, and to analyse the changes that occurred after marsupialisation. Marsupialised KCOTs tended to be reduced equally towards the window in the tumour. The amount of volume reduction per day ( Vr ) was reduced in proportion to the volume ( V ) with the formula Vr = −0.0029 × V . The formula manipulation for V was V = V0 × e −0.0029 t ( t = duration after marsupialisaton (day)). The volume of marsupialised KCOTs was reduced by half over a 239 day cycle. These results demonstrate that the future shape of marsupialised mandibular KCOTs, under good control, could be predicted with significant accuracy using CT data. This prediction could decrease the prolonged marsupialisation state in patients with KCOTs.
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ISSN:0901-5027
1399-0020
DOI:10.1016/j.ijom.2011.10.015