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Congress: ECR25
Poster Number: C-16309
Type: Poster: EPOS Radiologist (educational)
Authorblock: P. Cifrian Casuso, Á. Sánchez Mulas, C. A. López López, A. Guitián Pinilla, D. Castanedo Vázquez, S. Cayón Somacarrera, A. Somoano, S. M. Bretos Azcona, A. Berasategui Criado; Santander/ES
Disclosures:
Pilar Cifrian Casuso: Nothing to disclose
Álvaro Sánchez Mulas: Nothing to disclose
César Antonio López López: Nothing to disclose
Angela Guitián Pinilla: Nothing to disclose
David Castanedo Vázquez: Nothing to disclose
Silvia Cayón Somacarrera: Nothing to disclose
Alejandra Somoano: Nothing to disclose
Sofia Maria Bretos Azcona: Nothing to disclose
Ana Berasategui Criado: Nothing to disclose
Keywords: Ear / Nose / Throat, Head and neck, Radioprotection / Radiation dose, Cone beam CT, CT-High Resolution, MR, Education, Radiation safety, Congenital, Education and training, Pathology
Learning objectives The aim of this presentation is to provide a comprehensive understanding of the CBCT imaging technique, highlighting its advantages and disadvantages in comparison to other imaging studies.We will also explore the main protocols used to study the temporal bone using CBCT, and demonstrate how to map key bony structures of the inner and outer ear.Additionally, the presentation will delve into common bony pathologies affecting the ear, using real clinical cases to illustrate the practical applications of CBCT in diagnosing and...
Read more Background CBCT (Cone Beam Computed Tomography) was rapidly adopted in dental practices due to its compact size, low cost, and reduced radiation exposure compared to traditional medical CT. [fig 2] 1º CBCT TECHNOLOGY OVERVIEWThe CBCT machine uses a cone-shaped X-ray beam that rotates around the patient, capturing 2D images at each degree of rotation. These 2D images are transmitted to a computer, where they are reconstructed into 3D images using the Feldkamp algorithm and displayed in axial, coronal, and sagittal planes. Unlike conventional...
Read more Findings and procedure details 2º TEMPORAL BONE CBCT PROTOCOLTo ensure an accurate assessment of the temporal bone using CBCT, it is essential to follow a well-designed imaging protocol that includes appropriate reconstructions, which are particularly crucial given the complex anatomy and intricate structures of this region.Key elements of this protocol include standard reconstructions such as the true axial and true coronal views, alongside specialized projections like the Stenver and Poschl views. These reconstructions are tailored to provide optimal visualization of the bony labyrinth and...
Read more Conclusion CBCT is an effective imaging modality for evaluating the temporal bone and ear, offering high-resolution bony visualization with lower radiation than conventional CT. It enables precise identification of structural variations and pathologies. This technique evaluates external, middle, and inner ear conditions, including congenital anomalies, inflammatory processes, and degenerative changes. CBCT’s ability to analyze intricate anatomical details ensures accurate diagnosis while aiding clinical decision-making.
Read more References Ryu J, Kim J, Kim Y. Cone-beam CT in the assessment of middle ear and temporal bone: a review. Radiographics.2011;31(5):1185-1201. doi:10.1148/rg.315115122 Iro H, Lee H, O'Donoghue G. High-resolution CT and CBCT imaging of the temporal bone. Otolaryngologic Clinics of North America. 2010;43(6):1123-1137. doi:10.1016/j.otc.2010.08.011 Spinelli G, Cardoni A, Benedetti G. Use of cone-beam CT in otology: applications in imaging of the ear. Acta Otorhinolaryngologica Italica. 2012;32(6):383-391. doi:10.14639/0392-100X-145 Rizzo S, Catania A, de Donato G. The role of cone beam CT in the diagnosis of...
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