Comparing Cone Beam Computed Tomography with Multi-slice Computed Tomography in Diagnosing Osseous Defects at the Mandibular Condyle PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Comparing Cone Beam Computed Tomography with Multi-slice Computed Tomography in Diagnosing Osseous Defects at the Mandibular Condyle PDF full book. Access full book title Comparing Cone Beam Computed Tomography with Multi-slice Computed Tomography in Diagnosing Osseous Defects at the Mandibular Condyle by Elizabeth Marie Matteson Jones. Download full books in PDF and EPUB format.
Author: Elizabeth Marie Matteson Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
Get Book Here
Book Description
Results: Image diagnoses of all imaging/analysis methods showed good or excellent intra- and inter-rater reliability except for those of segmented CBCT images, which were substantially lower. The numbers of over- and under-diagnosis per condylar region were not significantly differences among varied imaging/analysis methods (Wilcoxon tests, p>0.05) but those from CT tended to be lower than CBCT. Classification functions demonstrate substantial lower sensitivity and accuracy with CBCT than with CT. Logistic regression showed CT had a significantly higher probability (odds ratio 2.4) than CBCT in reaching correct diagnosis, while the use of image segmentation and color mapping did not improve the diagnostic accuracy from CBCT images. Conclusions: Even at a lower voxel-size than medical CT, orthodontic-grade CBCT images of mandibular condyles are inherently more difficult than CT images for diagnosing small condylar defects, and this limitation cannot be overcome by using image segmentation and color mapping.
Author: Elizabeth Marie Matteson Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
Get Book Here
Book Description
Results: Image diagnoses of all imaging/analysis methods showed good or excellent intra- and inter-rater reliability except for those of segmented CBCT images, which were substantially lower. The numbers of over- and under-diagnosis per condylar region were not significantly differences among varied imaging/analysis methods (Wilcoxon tests, p>0.05) but those from CT tended to be lower than CBCT. Classification functions demonstrate substantial lower sensitivity and accuracy with CBCT than with CT. Logistic regression showed CT had a significantly higher probability (odds ratio 2.4) than CBCT in reaching correct diagnosis, while the use of image segmentation and color mapping did not improve the diagnostic accuracy from CBCT images. Conclusions: Even at a lower voxel-size than medical CT, orthodontic-grade CBCT images of mandibular condyles are inherently more difficult than CT images for diagnosing small condylar defects, and this limitation cannot be overcome by using image segmentation and color mapping.
Author: Alpesh Patel
Publisher:
ISBN:
Category :
Languages : en
Pages : 90
Get Book Here
Book Description
Abstract: Objectives: To assess the ability of using cone-beam computed tomography (CBCT) to diagnose small osseous defects at the mandibular condyle, this study investigated: 1) the impact of defect size and CBCT scan resolutions on the accuracy of qualitative and quantitative diagnoses of condylar defects and, 2) the ability to determine a suspected defect to be true/false based on CBCT measurements. Methods: Cylindrical holes simulating condylar defects of varied levels of diameter (=2mm; 2-3mm; >3mm) and depth (=2mm; >2mm) were created at 22 fresh pig mandibular condyles, with defect number/size per condyle/quadrant randomly determined. With soft tissues repositioned, CBCT scans (0.4mm, 0.2mm voxel-size) of the pig heads were obtained. Reconstructed CBCT data were analyzed independently by two calibrated, blinded raters using Dolphin-3D to diagnose osseous defects qualitatively (defect identification/localization) and quantitatively (geometric measurements of diameter/depth), which were compared to physical diagnoses obtained from polyvinyl siloxane impressions. Statistical tests were conducted for the research objectives. Results: Overall, qualitative defect identification/localization demonstrated moderate inter-rater reliability, excellent specificity and sensitivity, except for extremely small defects (both diameter and depth
Author: Ingrid Rozylo-Kalinowska
Publisher:
ISBN: 9783319994697
Category :
Languages : en
Pages : 0
Get Book Here
Book Description
Author: William C. Scarfe
Publisher: Springer
ISBN: 3319620614
Category : Medical
Languages : en
Pages : 1241
Get Book Here
Book Description
The book provides a comprehensive description of the fundamental operational principles, technical details of acquiring and specific clinical applications of dental and maxillofacial cone beam computed tomography (CBCT). It covers all clinical considerations necessary for optimal performance in a dental setting. In addition overall and region specific correlative imaging anatomy of the maxillofacial region is described in detail with emphasis on relevant disease. Finally imaging interpretation of CBCT images is presented related to specific clinical applications. This book is the definitive resource for all who refer, perform, interpret or use dental and maxillofacial CBCT including dental clinicians and specialists, radiographers, ENT physicians, head and neck, and oral and maxillofacial radiologists.
Author: Dr. SHREYA SHARMA
Publisher: Book Rivers
ISBN: 9355151470
Category : Antiques & Collectibles
Languages : en
Pages : 214
Get Book Here
Book Description
Author: Eva Klintström
Publisher: Linköping University Electronic Press
ISBN: 9176854345
Category :
Languages : en
Pages : 73
Get Book Here
Book Description
Trabecular bone structure as well as bone mineral density (BMD) have impact on the biomechanical competence of bone. In osteoporosis-related fractures, there have been shown to exist disconnections in the trabecular network as well as low bone mineral density. Imaging of bone parameters is therefore of importance in detecting osteoporosis. One available imaging device is cone-beam computed tomography (CBCT). This device is often used in pre-operative imaging of dental implants, for which the trabecular network also has great importance. Fourteen or 15 trabecular bone specimens from the radius were imaged for conducting this in vitro project. The imaging data from one dual-energy X-ray absorptiometry (DXA), two multi-slice computed tomography (MSCT), one high-resolution peripheral quantitative computed tomography (HR-pQCT) and four CBCT devices were segmented using an in-house developed code based on homogeneity thresholding. Seven trabecular microarchitecture parameters, as well as two trabecular bone stiffness parameters, were computed from the segmented data. Measurements from micro-computed tomography (micro-CT) data of the same bone specimens were regarded as gold standard. Correlations between MSCT and micro-CT data showed great variations, depending on device, imaging parameters and between the bone parameters. Only the bone-volume fraction (BV/TV) parameter was stable with strong correlations. Regarding both HR-pQCT and CBCT, the correlations to micro-CT were strong for bone structure parameters as well as bone stiffness parameters. The CBCT device 3D Accuitomo showed the strongest correlations, but overestimated BV/TV more than three times compared to micro-CT. The imaging protocol most often used in clinical imaging practice at our clinic demonstrated strong correlations as well as low radiation dose. CBCT data of trabecular bone can be used for analysing trabecular bone properties, like bone microstructure and bone biomechanics, showing strong correlations to the reference method of micro-CT. The results depend on choice of CBCT device as well as segmentation method used. The in-house developed code based on homogeneity thresholding is appropriate for CBCT data. The overestimations of BV/TV must be considered when estimating bone properties in future clinical dental implant and osteoporosis research.
Author: Shanon Patel
Publisher: Quintessenz Verlag
ISBN: 3868673334
Category : Medical
Languages : en
Pages : 401
Get Book Here
Book Description
In recent years, cone beam computed tomography (CBCT) has become much more widely available and utilised in all aspects of dentistry, including endodontics. Cone Beam Computed Tomography in Endodontics is designed to inform readers about the appropriate use of CBCT in endodontics, and enhance their clinical practice with this exciting imaging modality.
Author: Sunil D. Kapila
Publisher: John Wiley & Sons
ISBN: 1118646592
Category : Medical
Languages : en
Pages : 880
Get Book Here
Book Description
Since its introduction to dentistry, cone beam computed tomography (CBCT) has undergone a rapid evolution and considerable integration into orthodontics. However, despite the increasing popularity of CBCT and progress in applying it to clinical orthodontics, the profession has lacked a cohesive, comprehensive and objective reference that provides clinicians with the background needed to utilize this technology optimally for treating their patients. Cone Beam Computed Tomography in Orthodontics provides timely, impartial, and state-of-the-art information on the indications and protocols for CBCT imaging in orthodontics, clinical insights gained from these images, and innovations driven by these insights. As such, it is the most current and authoritative textbook on CBCT in orthodontics. Cone Beam Computed Tomography in Orthodontics is organized to progress sequentially through specific topics so as to build the knowledgebase logically in this important and rapidly evolving field. Part I provides the foundational information on CBCT technology, including radiation exposure and risks, and future evolutions in computed tomography. Part II presents the Principles and Protocols for CBCT Imaging in Orthodontics, focusing on developing evidence-based criteria for CBCT imaging, the medico-legal implications of CBCT to the professional and the protocols and integration of this technology in orthodontic practice. Part III provides critical information on CBCT-based Diagnosis and Treatment Planning that includes how to interpret CBCT scans, identify incidental pathologies and the possible other uses of this technology. Part IV covers practical aspects of CBCT’s Clinical Applications and Treatment Outcomes that encompasses a range of topics, including root morphology and position, treatment of impacted teeth, virtual surgical treatment planning and outcomes, and more.
Author: Carlos Alberto Soares Pires
Publisher:
ISBN:
Category :
Languages : en
Pages : 62
Get Book Here
Book Description
Author: Yaser Safi
Publisher: John Wiley & Sons
ISBN: 1119667771
Category : Medical
Languages : en
Pages : 468
Get Book Here
Book Description
A comprehensive collection of oral and maxillofacial cases using cone beam CT imaging Atlas of Cone Beam Computed Tomography delivers a robust collection of cases using this advanced method of imaging for oral and maxillofacial radiology. The book features over 1,500 high-quality CBCT scans with succinct descriptions covering a wide range of maxillofacial region conditions, including normal anatomy, anomalies, inflammatory diseases, and degenerative diseases. Easy to navigate and featuring multiple images of normal variation and pathologies, the book offers readers guidance on the diagnostic values of CBCT, as well as CBCT images of the inferior alveolar nerve canal, dental implants, temporomandibular joint evaluations, and surgical interventions. The book also includes: A thorough introduction to cone beam computed tomography, including in vivo and in vitro preparation and evaluation, indications in dentistry, and indications in medicine Comprehensive explorations of cone beam computed tomography artefacts and anatomic landmarks Practical discussions of cone beam computed tomography of dental structure, including normal anatomy, anomalies, and the difficulties of eruption In-depth examinations of cone beam computed tomography of pathological growth and development, including maxillofacial congenital and developmental anomalies Perfect for graduate dental students and postgraduate dental students in oral and maxillofacial radiology, Atlas of Cone Beam Computed Tomography is also useful to general dentists, oral and maxillofacial radiologists, head and neck maxillofacial surgeons, head and neck radiologists, general radiologists, and ENT surgeons.
