Abstract
The aim of this study was to evaluate whether textural analysis could differentiate between the two common types of lytic lesions imaged with use of radiography. Sixty-two patients were enrolled in the study with intraoral radiograph images and a histological reference study. Full textural analysis was performed using MaZda software. For over 10,000 features, logistic regression models were applied. Fragments containing lesion edges were characterized by significant correlation of structural information. Although the input images were stored using lossy compression and their scale was not preserved, the obtained results confirmed the possibility of distinguishing between cysts and granulomas with use of textural analysis of intraoral radiographs. It was shown that the important information distinguishing the aforementioned types of lesions is located at the edges and not within the lesion.
Highlights
Apical periodontitis and root canal treatment are two common causative factors of reduced periapical bone density [1]
Accurate diagnosis is highly welcomed by the clinical community, this contemporarily still relies on histologic examination, with poor outcomes for intraoral radiography and unsatisfactory results for cone beam tomography (CBCT) [15,16]
It was observed that the ROI for the first dataset, with the interior of the lesion, was significantly higher than that for the second dataset, which was extended by the edges
Summary
Apical periodontitis and root canal treatment are two common causative factors of reduced periapical bone density [1]. Localized inflammatory reaction with subsequent bone loss is secondary to the action of blood-derived macrophagic cells, which represents a response to stimuli such as mechanical irritation or bacterial inoculation. This form of bone change is represented in intraoral radiography (IR) by areas of radiolucency [2,3]. In the case when such a change is adhered to the tooth, its presence bespeaks an inflammatory process or the formation of granulation tissue. Those changes are different from the clinical point of view [4]. CBCT scans find their application in determining the key parameters of temporomandibular joint fissures, which allow verifying whether the ponds look and work properly [17]
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