Validity of single- and multislice CT for assessment of mandibular condyle lesions

Cara, Ana Cláudia Ballet de; Gaia, Bruno Felipe; Perrella, Andréia; Oliveira, J X O; Lopes, Patricia M.L.; Cavalcanti, Marcelo Gusmão Paraíso

doi:10.1259/dmfr/54883281

Cited by 25 publications

(32 citation statements)

References 22 publications

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“…Other studies, however, have claimed that CBCT image quality, regardless of the type of the detector, is comparable or even superior to MDCT. 25 The difference in image display of the 16-row detector CT used in this study compared with the unidetector image display used in the study by Honda et al was examined in another study by Cara et al 4 They investigated the validity of single-and multislice CT for assessments of 15 dry mandibular condyles and found that the highest accuracy was obtained with multislice axial-associated multiplanar reconstructed images. This finding shows that MDCT allows high image quality from thinner slices (0.5 mm) than can be obtained with single-slice CT. 4 This difference can be explained by the fact that the lesions with a depth of less than 1 mm were better detected with thinner slices.…”

Section: Discussionmentioning

confidence: 96%

“…2,3 CT imaging protocols that associate axial with multiplanar reconstructed images in multidetector CT (MDCT) demonstrated the highest accuracy, with 93% sensitivity and 100% specificity. 4 Although the use of CT as a diagnostic tool has been used in medicine for many years, its application in dentistry is limited, mainly because of the high cost of equipment, the large space required for its operation and the high dose of radiation involved. Cone beam CT (CBCT) was introduced as an alternative to CT and is considered appropriate for a wide range of craniofacial indications.…”

Section: Introductionmentioning

confidence: 99%

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A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector CT and cone beam CT

Zain-Alabdeen¹,

Alsadhan²

2012

Dentomaxillofacial Radiology

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Objective: The aim of this study was to assess the accuracy and reliability of cone beam CT (CBCT) images compared with multidetector CT (MDCT) images for the detection of surface osseous changes in temporomandibular joints (TMJs). Methods: Naked-eye inspection of 110 sites in 10 TMJs from 5 dry human skulls provided the gold standard. Two radiologists interpreted the images. Sensitivity, specificity and kappa statistics were used for analysis. Results: The sensitivities of both modalities were low and comparable whereas the specificities were high and comparable. Intraobserver reliabilities for CBCT (p 5 0.0005) and for MDCT (p 5 0.0001) showed significant agreement. Interobserver reliability was higher for CBCT than for MDCT. Conclusion: CBCT and MDCT accuracy was comparable in detecting surface osseous changes with comparable intraobserver reliabilities. However, since CBCT requires less radiation exposure, it should be encouraged for imaging TMJ with suspected surface osseous changes.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector CT and cone beam CT

Zain-Alabdeen¹,

Alsadhan²

2012

Dentomaxillofacial Radiology

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“…Similar satisfactory results have been observed in the present work. 3,[14][15][16] More recently, cone beam computed tomography has been the object of study for TMJ evaluation by various authors who consider it the best recom- Table 5 -Specificity of the protocols utilized for each region examined by observer 1. Table 6 -Percentages of agreements in relation to the gold standard in the examination of CBCT using the i-CAT Vision Table 4 -Sensitivity of the protocols utilized for each region examined by observer 1.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly to the studies of Utumi et al 20 and Cara et al, 14 the statistical methodology used in this study considered just one intra-observer analysis in order to avoid increasing costs and time, without losing the accuracy of the results, compared to the use of two intra-observer analyses. Additionally, a second observer was not considered because it would not increase sufficiently the number of observers to characterize a statistically representative sample.…”

Section: Discussionmentioning

confidence: 99%

Assessment of simulated mandibular condyle bone lesions by cone beam computed tomography

et al. 2010

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There are many limitations to image acquisition, using conventional radiography, of the temporomandibular joint (TMJ) region. The Computed Tomography (CT) scan is a better option, due to its higher accuracy, for purposes of diagnosis, surgical planning and treatment of bone injuries. The aim of the present study was to analyze two protocols of cone beam computed tomography for the evaluation of simulated mandibular condyle bone lesions. Spherical lesions were simulated in 30 dry mandibular condyles, using dentist drills and drill bits sizes 1, 3 and 6. Each of the mandibular condyles was submitted to cone beam computed tomography (CBCT) using two protocols: 1) axial, coronal and sagittal multiplanar reconstruction (MPR); and 2) sagittal plus coronal slices throughout the longitudinal axis of the mandibular condyles. For these protocols, 2 observers analyzed the CBCT images independently, regarding the presence or not of injuries. Only one of the observers, however, performed on 2 different occasions. The results were compared to the gold standard, evaluating the percentage of agreement, degree of accuracy of CBCT protocols and observers' examination. The z test was used for the statistical analysis. The results showed there were no statistically significant differences between the 2 protocols. There was greater difficulty in the assessment of small-size simulated lesions (drill # 1). From the results of this study, it can be concluded that CBCT is an accurate tool for analyzing mandibular condyle bone lesions, with the MPR protocol showing slightly better results than the sagittal plus coronal slices throughout the longitudinal axis.

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“…[7,12,13] Multiplanar reconstruction (MPR) from MSCT shows the highest accuracy and allows for excellent imaging of discrete bony changes in TMJ arthritis. [14] Typical findings in RA include subjective symptoms, restricted TMJ movement, and radiographic lesions along with condylar erosion, cysts, flattening, and sclerosis. [2] Clinically, a high score in hand-joint space narrowing in RA serves as an early indicator of patients at risk for severe TMD.…”

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confidence: 99%

Using Clinical and Multislice Computer Tomographic Features to Assess Temporomandibular Joint Osseous Involvement in Rheumatoid Arthritis: A Preliminary Study

et al. 2012

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Amaç: Bu çalışmada, romatoid artrit (RA) hastalarında çok kesitli bilgisayarlı tomografi (ÇKBT) taraması ve multiplanar rekonstrüksiyon (MPR) ile temporomandibüler eklemin (TME) osseöz tutulumu değerlendirildi ve klinik, laboratuvar ve radyolojik hastalık parametreleri açısından bir ilişki olup olmadığı araştırıldı. Hastalar ve yöntemler:Çalışmaya kesin RA tanısı konmuş 24 kadın hasta (ort. yaş 35.5±6.6 yıl; dağılım 38.3-42 yıl) dahil edildi. Değerlendirme tıbbi öykü, fizik muayene ve klinik araştırma ile gerçekleştirildi. Yirmi sekiz eklemde Hastalık Aktivite Skoru (DAS28) hesaplandı ve Sağlık Değerlendirme Anketi-II (HAQ-II) yapıldı. Hastaların TME'leri TMJ klinik disfonksiyon skoruna göre değerlendirildi. El ve ayakların radyolojik evrelemesi modifiye Larsen skoru esas alınarak yapıldı. Çok kesitli bilgisayarlı tomografi bulguları, TME BT skoru kullanılarak değerlendirildi. Bulgular: Hastaların %70.83'ünde TMJ tutulumu mevcuttu. En sık rastlanan klinik TME disfonksiyon belirtileri zorlu manipülasyon ve ağrı, hassasiyet (%45.83), tık sesi (%29.17), kilitlenme (%16.67) ve takiben ağzın değişen ölçülerde açılması (%8.33) idi.. İki taraflı MRP taramasından sonra daha fazla sayıda hastada osseöz TME tutulumuna rastlandı (%83.33). En sık rastlanan bulgular mandibuler kondil erozyonları, değişen kondil pozisyonu, mandibuler subkondral skleroz, artiküler eminens düzleşmesi değişen kondil şekli ve artiküler fossa erozyonu, osteofitler, artiküler eminence erozyonu ve takiben mandibuler subkondral kistlerdi. Hastaların %41.67'sinde ağız açıklığı görünür şekilde azalmıştı. Temporomandibuler eklemin BT skoru, DAS28 ve modifiye Larsen skoru ile arasında bir korelasyon eğiliminin mevcut olduğunu gösterdi.Sonuç: Çok kesitli bilgisayarlı tomografi ve MPR, RA hastalarında klinik belirtiler ve hastalık aktivitesi ile ilişkili TME tutulumunun hesaplanmasında tanısal açıdan güvenilir bir yöntemdir. Semptomatik TME olan RA hastaları için erken değerlendirme büyük önem taşır.Anahtar sözcükler: Multiplanar rekonstrüksiyon; çok kesitli bilgisayarlı tomografi; romatoid artrit; temporomandibuler eklem. Objectives:In this study, we aimed to assess the osseous involvement of temporomandibular joint (TMJ) in rheumatoid arthritis (RA) patients by multislice computed tomography (MSCT) scanning with multiplanar reconstruction (MPR), and to find any relation to the clinical, laboratory and radiological disease parameters. Patients and methods:Twenty-four female patients (mean age 35.5±6.6 years; range 38.3 to 42 years) with definite diagnosis of RA were recruited in the study. Assessment was conducted through medical history, physical examination and clinical investigation. Disease Activity Scores in 28 Joints (DAS28) was calculated and Health Assessment Questionnaire-II (HAQ-II) used. The TMJs were assessed according to the TMJ clinical dysfunction score. Radiological grading of hands and feet was performed according to the modified Larsen score. Findings of the MSCT were assessed using the TMJ CT score.Results: Temporomandibular joint invol...

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Validity of single- and multislice CT for assessment of mandibular condyle lesions

Abstract: All CT-imaging protocols were considered accurate for mandibular condyle lesions assessment. The association of axial with MPR images using multislice CT demonstrated highest accuracy. A new imaging protocol was established for diagnosis of these lesions.

Cited by 25 publications

References 22 publications

A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector CT and cone beam CT

A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector CT and cone beam CT

Assessment of simulated mandibular condyle bone lesions by cone beam computed tomography

Using Clinical and Multislice Computer Tomographic Features to Assess Temporomandibular Joint Osseous Involvement in Rheumatoid Arthritis: A Preliminary Study

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