Purpose: Detecting laryngeal cartilages (triticeous and thyroid cartilages) on panoramic radiographs is important because they may be confused with carotid artery calcifications in the bifurcation region, which are a risk factor for stroke. This study assessed the efficiency of panoramic radiography...
Purpose: Detecting laryngeal cartilages (triticeous and thyroid cartilages) on panoramic radiographs is important because they may be confused with carotid artery calcifications in the bifurcation region, which are a risk factor for stroke. This study assessed the efficiency of panoramic radiography in the diagnosis of calcified laryngeal cartilages using cone-beam computed tomography (CBCT) as the reference standard. Materials and Methods: A total of 312 regions(142 bilateral, 10 left, 18 right) in 170 patients(140 males, 30 females) were examined. Panoramic radiographs were examined by an oral and maxillofacial radiologist with 11 years of experience. CBCT scans were reviewed by 2 other oral and maxillofacial radiologists. The kappa coefficient(${\kappa}$) was calculated to determine the level of intra-observer agreement and to determine the level of agreement between the 2 methods. Diagnostic indicators(sensitivity, specificity, accuracy, and false positive and false negative rates) were also calculated. P values <.05 were considered to indicate statistical significance. Results: Eighty-two images were re-examined to determine the intra-observer agreement level, and the kappa coefficient was calculated as 0.709 (P<.05). Statistically significant and acceptable agreement was found between the panoramic and CBCT images (${\kappa}=0.684$ and P<.05). The sensitivity, specificity, diagnostic accuracy rate, the false positive rate, and the false negative rate of the panoramic radiographs were 85.4%, 83.5%, 84.6%, 16.5%, and 14.6%, respectively. Conclusion: In most cases, calcified laryngeal cartilages could be diagnosed on panoramic radiographs. However, due to variation in the calcifications, diagnosis may be difficult.
Purpose: Detecting laryngeal cartilages (triticeous and thyroid cartilages) on panoramic radiographs is important because they may be confused with carotid artery calcifications in the bifurcation region, which are a risk factor for stroke. This study assessed the efficiency of panoramic radiography in the diagnosis of calcified laryngeal cartilages using cone-beam computed tomography (CBCT) as the reference standard. Materials and Methods: A total of 312 regions(142 bilateral, 10 left, 18 right) in 170 patients(140 males, 30 females) were examined. Panoramic radiographs were examined by an oral and maxillofacial radiologist with 11 years of experience. CBCT scans were reviewed by 2 other oral and maxillofacial radiologists. The kappa coefficient(${\kappa}$) was calculated to determine the level of intra-observer agreement and to determine the level of agreement between the 2 methods. Diagnostic indicators(sensitivity, specificity, accuracy, and false positive and false negative rates) were also calculated. P values <.05 were considered to indicate statistical significance. Results: Eighty-two images were re-examined to determine the intra-observer agreement level, and the kappa coefficient was calculated as 0.709 (P<.05). Statistically significant and acceptable agreement was found between the panoramic and CBCT images (${\kappa}=0.684$ and P<.05). The sensitivity, specificity, diagnostic accuracy rate, the false positive rate, and the false negative rate of the panoramic radiographs were 85.4%, 83.5%, 84.6%, 16.5%, and 14.6%, respectively. Conclusion: In most cases, calcified laryngeal cartilages could be diagnosed on panoramic radiographs. However, due to variation in the calcifications, diagnosis may be difficult.
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문제 정의
In the present study, both types of calcifications were designated as laryngeal cartilage calcifications, and the exclusive efficiency of panoramic radiography for the diagnosis of calcified triticeous cartilage was not estimated. This retrospective study was based on CBCT scans that were obtained at our dental faculty from patients with diseases in the oral and maxillofacial region. Therefore, in most cases, the field of view did not allow triticeous cartilages to be distinguished from thyroid cartilages.
제안 방법
by an oral and maxillofacial radiologist (GA) with 11 years of experience. A calibration study was carried out for the observer before the examination of the panoramic images. Both types of calcifications were designated as laryngeal cartilage calcifications.
the diagnostic indicators (sensitivity, specificity, accuracy, and false positive and false negative rates) of panoramic radiography for the diagnosis of CLC have not been evaluated. Thus, this study assessed the efficiency of panoramic radiography in the diagnosis of CLC using cone-beam computed tomography (CBCT) as the reference standard.
대상 데이터
A total of 312 regions (142 bilateral, 10 left, 18 right) were evaluated in 170 patients (140 males, 30 females). The observer re-evaluated 82 panoramic images to assess the level of intra-observer agreement.
Initially, the CBCT scans were selected and then coupled with available panoramic images. CBCT scans obtained between December 2014 and December 2015 were chosen from the records of the Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Hacettepe University (n=2177). The study protocol was reviewed and approved by the Non-Interventional Clinical Research Ethics Board of Hacettepe University.
14, Imaging Science International, Hatfield, PA, USA). The CBCT scans were reviewed by 2 oral and maxillofacial radiologists.
This retrospective study was based on 170 pairs of panoramic radiographs and CBCT scans covering the relevant region (140 males, 30 females; mean age, 41.4 years; range, 8-80 years). Initially, the CBCT scans were selected and then coupled with available panoramic images.
참고문헌 (9)
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