Cone-beam CT with a flat-panel imager: noise considerations for fully 3D computed tomography

Author(s):  
Jeffrey H. Siewerdsen ◽  
David A. Jaffray
2014 ◽  
Vol 7 (2) ◽  
pp. 85-91 ◽  
Author(s):  
Selmi Yardimci Yilmaz ◽  
Melda Misirlioglu ◽  
Mehmet Zahit Adisen

The purpose of this article is to present the case of maxillofacial trauma patient with maxillary sinus fracture diagnosed with cone-beam computed tomography (CBCT) and to explore the applications of this technique in evaluating the maxillofacial region. A 23-year-old male patient attempted to our clinic who had an injury at midface with complaints of swelling, numbness. The patient was examined before in emergency center but any diagnosis was made about the maxillofacial trauma. The patient re-examined clinically and radiographically. A fracture on the frontal wall of maxillary sinus is determined with the aid of CBCT. The patient consulted with the department of maxillofacial surgery and it is decided that any surgical treatment was not necessary. The emerging technique CBCT would not be the primary choice of imaging maxillofacial trauma. Nevertheless, when advantages considered this imaging procedure could be the modality of choice according to the case.


2015 ◽  
Vol 10 (12) ◽  
pp. T12004-T12004 ◽  
Author(s):  
S.H. Kim ◽  
D.W. Kim ◽  
H. Youn ◽  
D. Kim ◽  
S. Kam ◽  
...  

2011 ◽  
Vol 1 (2) ◽  
pp. 31
Author(s):  
Kishan G. Panicker ◽  
Anuroopa Pudukulangara Nair ◽  
Bipin Chandra Reddy

Cone beam CT (CBCT) produces threedimensional information on the facial skeleton, teeth and their surrounding tissues; and is increasingly being used in many of the dental specialties. This is usually achieved with a substantially lower effective dose compared with conventional medical computed tomography (CT). Periapical pathologies, root fractures, root canal anatomy and the true nature of the alveolar bone topography around teeth may be assessed. CBCT scans are desirable to assess posterior teeth prior to periapical surgery, as the thickness of the cortical and cancellous bone can be accurately determined as can the inclination of roots in relation to the surrounding jaw. The relationship of anatomical structures such as the maxillary sinus and inferior dental nerve to the root apices may also be clearly visualized. Measurements on CBCT are more accurate when compared with OPG. Therefore, CBCT permits the clinician to have all necessary information when planning dental implants. The purpose of this article is to provide an overview of the unique image display capabilities of maxillofacial CBCT systems and to illustrate specific applications in clinical practice.


Diagnostics ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 73
Author(s):  
Seçil Aksoy ◽  
Arzu Sayın Şakul ◽  
Durmuş İlker Görür ◽  
Bayram Ufuk Şakul ◽  
Kaan Orhan

The study aimed to establish and evaluate anatomoradiological landmarks in trigeminal neuralgia patients using computed tomography (CT) and cone-beam CT. CT images of 40 trigeminal neuralgia (TN) and 40 healthy individuals were retrospectively analyzed and enrolled in the study. The width and length of the foramen rotundum (FR), foramen ovale (FO), foramen supraorbitale, and infraorbitale were measured. The distances between these foramen, between these foramen to the median plane, and between the superior orbital fissure, FO, and FR to clinoid processes were also measured bilaterally. Variations were evaluated according to groups. Significant differences were found for width and length of the foramen ovale, length of the foramen supraorbitale, and infraorbitale between TN and control subjects (p < 0.05). On both sides, FO gets narrower and the length of the infraorbital and supraorbital foramen shortens in the TN group. In most of the control patients, the plane which passes through the infraorbital and supraorbital foramen intersects with impression trigeminale; 70% on the right-side, and 67% in the left-side TN groups. This plane does not intersect with impression trigeminale and deviates in certain degrees. The determination of specific landmarks allows customization to individual patient anatomy and may help the surgeon achieve a more selective effect with a variety of percutaneous procedures in trigeminal neuralgia patients.


2003 ◽  
Author(s):  
Georg Rose ◽  
Jens Wiegert ◽  
Dirk Schaefer ◽  
Klaus Fiedler ◽  
Norbert Conrads ◽  
...  

2005 ◽  
Vol 32 (6Part21) ◽  
pp. 2159-2160 ◽  
Author(s):  
S Sorensen ◽  
M Mitschke ◽  
P Medin ◽  
N Agazaryan ◽  
S Tenn ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document