scholarly journals Improved imaging of temporal bone for planning the access to the stapedius muscle using cone beam CT technology (Dyna CTTM)

2020 ◽  
Author(s):  
GF Volk ◽  
R Aschenbach ◽  
M Gadyuchko ◽  
T Bitter ◽  
S Koscielny ◽  
...  
Keyword(s):  
Temporal Bone ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Stapedius Muscle ◽  
Ct Technology

scholarly journals Imaging anatomy of the retrotympanum: variants and their surgical implications

2020 ◽  
Vol 93 (1105) ◽  
pp. 20190677 ◽  
Author(s):  
Christian Burd ◽  
Irumee Pai ◽  
Stephen Connor
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Middle Ear Surgery ◽  
Anatomical Landmarks ◽  
Ear Surgery ◽  
Complex Anatomy ◽  
Pictorial Review ◽  
Operative Planning ◽  
Ct Technology ◽  
Temporal Bone Imaging

The retrotympanic anatomy is complex and variable but has received little attention in the radiological literature. With advances in CT technology and the application of cone beam CT to temporal bone imaging, there is now a detailed depiction of the retrotympanic bony structures. With the increasing use of endoscopes in middle ear surgery, it is important for the radiologist to appreciate the nomenclature of the retrotympanic compartments in order to aid communication with the surgeon. For instance, in the context of cholesteatoma, clear imaging descriptions of retrotympanic variability and pathological involvement are valuable in pre-operative planning. The endoscopic anatomy has recently been described and the variants classified. The retrotympanum is divided into medial and lateral compartments with multiple described potential sinuses separated by bony crests. This pictorial review will describe the complex anatomy and variants of the retrotympanum. We will describe optimum reformatting techniques to demonstrate the structures of the retrotympanum and illustrate the associated anatomical landmarks and variants with CT. The implications of anatomical variants with regards to otologic surgery will be discussed.

SU-DD-A4-04: Dosimetry and Image Quality Evaluation of a Dedicated Cone-Beam CT System for Sinus and Temporal Bone Applications

2007 ◽  
Vol 34 (6Part1) ◽  
pp. 2327-2327 ◽  
Author(s):  
L Yu ◽  
T Vrieze ◽  
M Bruesewitz ◽  
J Kofler ◽  
C McCollough
Keyword(s):  
Image Quality ◽  
Temporal Bone ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Quality Evaluation ◽  
Ct System

scholarly journals O-020 Novel cone beam CT technology improves image quality for stroke assessment: a prospective series

2021 ◽  
Author(s):  
N Cancelliere ◽  
P Nicholson ◽  
F Nijnatten ◽  
E Hummel ◽  
P Withagen ◽  
...  
Keyword(s):  
Image Quality ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Ct Technology ◽  
Stroke Assessment

Intraoperative Cone-beam CT for Guidance of Temporal Bone Surgery

2006 ◽  
Vol 134 (5) ◽  
pp. 801-808 ◽  
Author(s):  
Mark A. Rafferty ◽  
Jeffrey H. Siewerdsen ◽  
Yvonne Chan ◽  
Michael J. Daly ◽  
Douglas J. Moseley ◽  
...  
Keyword(s):  
Temporal Bone ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Bone Surgery ◽  
Temporal Bone Surgery

scholarly journals Utility of C-Arm CT in Detection Hepatocellular Carcinoma during Trans Arterial Chemoembolization

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
M S Ghazy ◽  
A H Soliman ◽  
M H K Abdelmaksoud ◽  
N M E Morsy
Keyword(s):  
Hepatocellular Carcinoma ◽  
Gold Standard ◽  
Transcatheter Arterial Chemoembolization ◽  
Cone Beam Ct ◽  
Clinical History ◽  
Cone Beam ◽  
Success Rates ◽  
Feeding Vessels ◽  
Ct Technology ◽  
Arterial Chemoembolization

Abstract Background Transcatheter arterial chemoembolization is one of the effective therapeutic options for hepatocellular carcinoma (HCC). Ultraselective chemoembolization is an alternative approach to improve local control, and is associated with a reduced incidence of adverse effects. Objective It was to evaluate the sensitivity of cone beam computed tomography (CBCT) in detecting HCC tumors and their feeding vessels during transarterial chemoembolization (TACE). Patients and Methods All patients were suspected of having or confirmed to have HCC on the basis of clinical history, underlying liver disease and/or viral infection, the diagnosis of HCC was made by imaging findings. Between January 2016 and January 2018, Dyna CT was retrospectively used in 19 consecutive patients with HCC tumor with HCC tumor. Results The detectability of the tumor with DSA obtained at the common, proper, right, or left hepatic artery (i.e., nonselective DSA) and cone-beam CT was compared as taking pre imaging as a gold standard. Tumor stain and feeding branches were evaluated. The detectability of the tumor-feeding branch with non-selective DSA and Dyna CT HA images was compared. Conclusion Tumor detectability on cone-beam CT was significantly greater than on non-selective. Cone beam HA taking pre imaging as a gold standard was (94.4%) and its specificity (71.6%) with accuracy (76.97%). The sensitivity of DSA in detection of additional tumor as taking the pre imaging (CT/MRI) as a gold standard was (88.9%) and its specificity (84.5%) with accuracy (85.53%). Cone-beam CT has satisfactory ability to detect tumors; the detectability of tumor-feeding branches with Dyna CT was significantly higher than that with nonselective DSA (P less than 0.001). We believe the technical success rates of ultraselective transcatheter arterial chemoembolization may be improved by chemoembolization guidance software that uses cone-beam CT technology.

Detection of hepatocellular carcinoma by CT during arterial portography using a cone-beam CT technology: comparison with conventional CTAP

2008 ◽  
Vol 34 (4) ◽  
pp. 502-506 ◽  
Author(s):  
Shiro Miyayama ◽  
Osamu Matsui ◽  
Masashi Yamashiro ◽  
Yasuji Ryu ◽  
Harumi Takata ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Arterial Portography ◽  
Ct During Arterial Portography ◽  
Ct Technology ◽  
Technology Comparison

ANATOMICAL TOPOGRAPHIC FEATURES OF THE FACIAL NERVE ON CONE-BEAM CT

2019 ◽  
Vol 25 (3) ◽  
pp. 46-52
Author(s):  
A.A. Zubareva ◽  
◽  
Zh.Y. Beiseyeva ◽  
Keyword(s):  
Facial Nerve ◽  
Retrospective Analysis ◽  
Temporal Bone ◽  
Middle Ear ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Horizontal Semicircular Canal ◽  
Significant Difference ◽  
Group 2 ◽  
Temporal Bones

Introduction. Cone-beam computer tomography (CBCT) was introduced into the ENT practice more than 10 years ago. In recent years, it is actively used to visualize temporal bones in acute and chronic diseases of the middle ear (especially in visualizing implants of the middle and inner ear, shunts), but there is no precise description of anatomical features of the temporal bone’s structure. Materials and methods. A retrospective analysis of tomogram, made on a Sirona tomograph, Galaxis / Galileos software for the period from 08/04/2016 to 23/06/2017, in overall, there was analyzed 82 images, from which 71 images of temporal bones were selected from 41 people. Group 1 - CT of the temporal bone in patients with signs of acute inflammation of the middle ear, group 2 - CT of the temporal bone in patients with signs of chronic inflammation of the middle ear, group 3 - CT of the temporal bone in patients without signs of inflammation. Results. An algorithm for assessing the temporal bone according to the above parameters is(was) proposed. When three groups were compared, the length of the mastoid and drum part of the facial nerve, the canal of the facial nerve near the aditus ad antrum and the horizontal semicircular canal were revealed, and the distance between them, regardless to the progress of the disease, corresponds to the parameters of the norm. Conclusion. Thus, taking into account the data of the retrospective analysis, it should be noted that there was no significant difference between the quantitative indices of the facial nerve’s canal structure without inflammation and in the acute and chronic pathology of the middle ear

scholarly journals CBCT in Orthodontics: The Wave of Future

2013 ◽  
Vol 14 (1) ◽  
pp. 153-157 ◽  
Author(s):  
Lalita G Nanjannawar ◽  
Jiwanasha Manish Agrawal ◽  
Manish Suresh Agrawal ◽  
Anita D Parushetti
Keyword(s):  
Treatment Planning ◽  
Soft Tissues ◽  
Imaging Techniques ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
3D Objects ◽  
The Past ◽  
Ct Technology ◽  
User Friendly ◽  
Excellent Tool

ABSTRACT Cone beam computed tomography (CBCT) has probably been one of the most revolutionary innovations in the field of dentistry in the past decade and it provides a novel platform for orthodontic diagnosis and treatment planning. Current imaging techniques are essentially two-dimensional (2D) representations of threedimensional (3D) objects and suffer from several limitations. Hence, fulfillment of ideal imaging goals has been limited. Twodimensional radiographs are insufficient, especially in complex cases like impacted teeth, supernumerary teeth and orthognathic surgeries. CBCT images provide far more detailed information than conventional 2D radiographs and are user friendly. Soft tissues, skull, airway and the dentition can be observed and measured on CBCT images in a 1:1 ratio. Clinical significance CBCT provides an excellent tool for accurate diagnosis, more predictable treatment planning, more efficient patient management and education, improved treatment outcome and patient satisfaction. This article focuses on various applications of cone beam CT technology in orthodontics. How to cite this article Agrawal JM, Agrawal MS, Nanjannawar LG, Parushetti AD. CBCT in Orthodontics: The Wave of Future. J Contemp Dent Pract 2013;14(1):153-157.

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