Extracting the Potential Features of Digital Panoramic Radiograph Images by Combining Radio Morphometry Index, Texture Analysis, and Morphological Features

Enny Itje Sela,Sutarman Sutarman

doi:10.3844/jcssp.2018.144.152

Abstract

Osteoporosis is a type of disease that is not easily detected visually. It contributes to bone fracture and so early diagnosis is particularly important to prevent bone fracture. An integrated approach for extraction of cortical and trabecular bone on the digital panoramic radiograph (DPR) images was proposed to screen osteoporosis. We performed radio morphometry index (RMI), texture analysis, and morphology analysis to extract the features of DPR images. Then, the extracted features were further applied to decision tree technique which lead to obtain potential or significant features about osteoporosis. An automated classifier was developed based on Learning Vector Quantization (LVQ) to differentiate between normal and osteoporotic class. In this study, seven major features playing significant role in the osteoporosis identification. For testing purpose, the accuracy of decision tree technique resulted 96,77% and the accuracy of LVQ was 80%.

Highlights

Osteoporosis is still a problem in public health, especially in developing countries
The parts of the panoramic image used for the screening of osteoporosis are the cortical bone and trabecular bone, whereas the dental periapical image only utilizes the trabecular bone
In previous study (Widyaningrum et al, 2012) femoral neck and lumbar spine T-score values were assessed with DEXA examination, while radio morphometry index (RMI) measurements of mental index (MI), panoramic mandibular index (PMI), antegonial index (AI) and gonion index (GI) were performed on the dental panoramic radiographic images

Summary

Introduction

Osteoporosis is still a problem in public health, especially in developing countries. That is why early osteoporosis’s screening is a useful effort to prevent it (Sela et al, 2015). Examination of osteoporosis by utilizing dental images is very helpful, since osteoporosis examination using DEXA is still expensive and not all hospitals provide this facility (Levine, 2016; Sela and Widyaningrum, 2015). According (Sela et al, 2014), when the body needs calcium, it will be taken from the jaw bones, first. That is why the jaw bone suffered more fragility than others. The dental radiograph images have been widely explored for osteoporosis screening. The dental image itself consists of panoramic and periapical images. The parts of the panoramic image used for the screening of osteoporosis are the cortical bone and trabecular bone, whereas the dental periapical image only utilizes the trabecular bone

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