scholarly journals Assessment of relationship between extracranial and intracranial carotid calcifications—a retrospective cone beam computed tomography study

2019 ◽  
Vol 48 (8) ◽  
pp. 20190013
Author(s):  
Sunil Mutalik ◽  
Aditya Tadinada
Keyword(s):  
Carotid Artery ◽  
Odds Ratio ◽  
Small Volume ◽  
Cone Beam Ct ◽  
Strong Association ◽  
Cone Beam ◽  
Medical Attention ◽  
Dental Practice ◽  
Extracranial Carotid Artery ◽  
Carotid Calcification

Objectives: Cone beam CT scans in current day dental practice are highly collimated yet involve areas along the course of the extracranial carotid artery. Detecting an extracranial carotid calcification on small volume scans leaves the dentist with two questions: whether the patient is likely to have intracranial carotid calcifications and whether the patient warrants further medical attention. This study aimed to assess the presence of intracranial carotid artery calcifications (ICAC) in the presence of extracranial carotid artery calcifications (ECAC). Methods: 450 CBCT scans were retrospectively evaluated for ECAC and ICAC. Erby et al’s classification was modified to classify calcifications as mild, moderate, and severe. The presence of ICAC when ECAC were present was evaluated in all three orthogonal planes. The risk of ICAC in the presence of ECAC was calculated as odds ratio and the association between the two was calculated using a χ2 test. Results: The odds ratio for bilateral ICAC in the presence of bilateral ECAC was 15.09. The odds ratio for left ICAC/right ICAC in the presence of left/ right ECAC was 0.833 and 2.564, respectively. The number and severity of calcifications increased with age. The χ2 test showed that there was a strong association (p < 0.001) between bilateral ECAC with bilateral ICAC. Conclusions: The results of this group of patients showed that there is an increased presence of ICAC in the presence of ECAC.

Cone Beam CT in Dental Practice : A Surgical Perspective

2014 ◽  
Vol 9 (3) ◽  
pp. 10-13 ◽  
Author(s):  
Tareq Abu-Saleh ◽  
Young-Ku Heo
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Dental Practice

Cone-beam CT of the internal carotid artery

2002 ◽  
Author(s):  
Derek E. Hyde ◽  
Sandeep Naik ◽  
Damiaan F. Habets ◽  
David W. Holdsworth
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Cone Beam Ct ◽  
Cone Beam

scholarly journals Cone beam CT in dental practice

BDJ ◽  
2009 ◽  
Vol 207 (1) ◽  
pp. 23-28 ◽  
Author(s):  
A. Dawood ◽  
S. Patel ◽  
J. Brown
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Dental Practice

scholarly journals DMFR 50thanniversary: Review article: Local cone beam CT: how did it all start?

2021 ◽  
Author(s):  
Yoshinori Arai
Keyword(s):  
Mathematical Theory ◽  
Cone Beam Ct ◽  
Review Article ◽  
Cone Beam ◽  
Dental Practice ◽  
Television System ◽  
Low Radiation Dose ◽  
X Ray ◽  
Basic Experiments ◽  
Local Cone

The mathematical theory of computed tomography (CT) was proposed by J. Radon in 1917. It was declared that the projection of whole datasets was needed to reconstruct CT images. Therefore, according to J. Radon’s original theory, local cone beam CT (local CBCT) was impossible to achieve. In this paper, I discuss how local CBCT was discovered and developed. Its development required many technical elements, such as a turntable and X-ray television system, for basic experiments such as those on which narrow collimation theory and multifunctional panoramic tomography were based. These experiments endured many failures during development. Now, local CBCT is extremely popular in dental practice because local CBCT has a low radiation dose and high resolution. This paper introduces the technical elements and outlines the important stages during the development of local CBCT in the 1990s.

Surgical management of extracranial carotid artery aneurysms

VASA ◽  
2016 ◽  
Vol 45 (3) ◽  
pp. 223-228 ◽  
Author(s):  
Jan Paweł Skóra ◽  
Jacek Kurcz ◽  
Krzysztof Korta ◽  
Przemysław Szyber ◽  
Tadeusz Andrzej Dorobisz ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Surgical Management ◽  
Minor Stroke ◽  
Stroke Rate ◽  
Extracranial Carotid Artery ◽  
Long Term Follow Up ◽  
End To End ◽  
Dacron Patch ◽  
Major Stroke

Abstract. Background: We present the methods and results of the surgical management of extracranial carotid artery aneurysms (ECCA). Postoperative complications including early and late neurological events were analysed. Correlation between reconstruction techniques and morphology of ECCA was assessed in this retrospective study. Patients and methods: In total, 32 reconstructions of ECCA were performed in 31 symptomatic patients with a mean age of 59.2 (range 33 - 84) years. The causes of ECCA were divided among atherosclerosis (n = 25; 78.1 %), previous carotid endarterectomy with Dacron patch (n = 4; 12.5 %), iatrogenic injury (n = 2; 6.3 %) and infection (n = 1; 3.1 %). In 23 cases, intervention consisted of carotid bypass. Aneurysmectomy with end-to-end suture was performed in 4 cases. Aneurysmal resection with patching was done in 2 cases and aneurysmorrhaphy without patching in another 2 cases. In 1 case, ligature of the internal carotid artery (ICA) was required. Results: Technical success defined as the preservation of ICA patency was achieved in 31 cases (96.9 %). There was one perioperative death due to major stroke (3.1 %). Two cases of minor stroke occurred in the 30-day observation period (6.3 %). Three patients had a transient hypoglossal nerve palsy that subsided spontaneously (9.4 %). At a mean long-term follow-up of 68 months, there were no major or minor ipsilateral strokes or surgery-related deaths reported. In all 30 surviving patients (96.9 %), long-term clinical outcomes were free from ipsilateral neurological symptoms. Conclusions: Open surgery is a relatively safe method in the therapy of ECCA. Surgical repair of ECCAs can be associated with an acceptable major stroke rate and moderate minor stroke rate. Complication-free long-term outcomes can be achieved in as many as 96.9 % of patients. Aneurysmectomy with end-to-end anastomosis or bypass surgery can be implemented during open repair of ECCA.

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