Universität zu Köln

Kauke, Martin, Safi, Ali-Farid, Grandoch, Andrea, Nickenig, Hans-Joachim, Zoeller, Joachim and Kreppe, Matthias (2019). Image segmentation-based volume approximation-volume as a factor in the clinical management of osteolytic jaw lesions. Dentomaxillofac. Radiol., 48 (1). LONDON: BRITISH INST RADIOLOGY. ISSN 1476-542X

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Abstract

Objective: Size characterization of osteolytic jaw lesions (OJL), in particular of neoplastic nature, is heterogeneously performed and lacks standardization in the medical literature and clinical practice. An OJL's volume holds promise as a surrogate for treatment response and prognosis. We comparatively evaluate various methods for size characterization of odontogenic OJLs. Methods: We retrospectively performed semiautomatic image segmentation of CBCT data sets for volume approximation of neoplastic (51) and non-neoplastic odontogenic OJLs (100). We assessed the three greatest orthogonal diameters and calculated the volume using the cuboid- and ellipsoid-formula. Image segmentation was carried out using ITK-SNAP. Image segmentation-based volume approximation served as reference. Intra- and inter-rater variability were evaluated at hand of Bland-Altman-Analysis and dice similarity coefficient (DSC). Results: Concerning the intrarater variability, we found the DSC to be highest for image segmentation-based volume approximation, simultaneously showing the tightest limits of agreement and greatest reliability. The cuboid formula showed consistent overestimation of the lesion's volume with a percent mean difference of -52% (upper and lower limits of agreement +8.57% and -112.63%, respectively). In mean, the ellipsoid formula underestimated the lesion's volume by 10.1% (upper and lower limits of agreement +76.8% and -56.6%, respectively). Inter rater variability was higher for formula-based volume approximation. Volume and multilocularity (p = 0.001) correlate with aggressiveness and growth potential. Conclusions: Segmentation-based volume approximation holds great promise for patient individualized treatment planning and clinical management. The data suggest that maximum tumour diameter-based size characterization, especially the cuboid-formula and the maximum diameter alone, should not be recommended.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kauke, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Safi, Ali-Farid UNSPECIFIED UNSPECIFIED UNSPECIFIED Grandoch, Andrea UNSPECIFIED UNSPECIFIED UNSPECIFIED Nickenig, Hans-Joachim UNSPECIFIED UNSPECIFIED UNSPECIFIED Zoeller, Joachim UNSPECIFIED UNSPECIFIED UNSPECIFIED Kreppe, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-140913
DOI:	10.1259/dmfr.20180113
Journal or Publication Title:	Dentomaxillofac. Radiol.
Volume:	48
Number:	1
Date:	2019
Publisher:	BRITISH INST RADIOLOGY
Place of Publication:	LONDON
ISSN:	1476-542X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ODONTOGENIC-TUMORS; CYSTS Multiple languages Dentistry, Oral Surgery & Medicine; Radiology, Nuclear Medicine & Medical Imaging Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14091