Results 101 to 110 of about 804,721 (400)

Assessment of phantom dosimetry and image quality of i-CAT FLX cone-beam computed tomography [PDF]

open access: yes, 2013
Increasing use of cone-beam computed tomography in orthodontics has been coupled with heightened concern with the long-term risks of x-ray exposure in orthodontic populations.
Ludlow, John B., Walker, Cameron
core   +2 more sources

Cone beam computed tomography in oral implants

open access: yesNational Journal of Maxillofacial Surgery, 2013
Cone beam computed tomography (CBCT) scanners for the oral and maxillofacial region were pioneered in the late 1990s independently by Arai et al. in Japan and Mozzo et al. CBCT has a lower dose of radiation, minimal metal artifacts, reduced costs, easier accessibility, and easier handling than multislice computed tomography (MSCT); however, the latter ...
Syed Parveez Ali, Jyoti Gupta
openaire   +4 more sources

The effect of kV imaging dose on PTV and OAR planning constraints in lung SBRT using stereoscopic/monoscopic real‐time tumor‐monitoring system

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Quantify the impact of additional imaging doses on clinical dose constraints during lung stereotactic body radiotherapy (SBRT) treatment utilizing stereoscopic/monoscopic real‐time tumor monitoring. Materials and Methods Thirty lung SBRT patients treated with the volumetric arc therapy technique were randomly selected from the ...
Ruwan Abeywardhana, Mike Sattarivand
wiley   +1 more source

Multi‐institutional study on image quality for a novel CBCT solution on O‐ring linac

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction This work presents a multi‐institutional study on image quality provided by a novel cone beam computed tomography (CBCT). The main goal is to investigate the consistency of imaging performance across multiple institutions.
Luis Agulles‐Pedrós   +11 more
wiley   +1 more source

Accuracy of Volumetric Analysis Software Packages in Assessment of Tooth Volume Using CBCT [PDF]

open access: yes, 2016
The purpose of this study was to evaluate the accuracy of volumetric analysis software packages in assessment of tooth volume using cone beam computed tomography and compare them to the volume obtained using an optical digital scanner. Twenty-four single
Nimbalkar, Saylee
core   +1 more source

Diagnosis and Treatment of a Type III Dens Invagination Using Cone-Beam Computed Tomography [PDF]

open access: yes, 2016
A 20-year-old man presented with the history of pain and swelling in the anterior maxillary segment. The periapical radiography was indicative of a dental anomaly in right maxillary lateral incisor.
Adl, Alireza   +3 more
core   +2 more sources

Evaluation of the dose reduction effect of crystalline lens exposure in cone‐beam computed tomography with bismuth eye shield for image‐guided radiation therapy: An anthropomorphic phantom study

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract This study aimed to evaluate the dose‐exposure reduction effect of a crystalline lens with a bismuth eye shield using cone‐beam computed tomography (CBCT) for head image‐guided radiation therapy. The ocular surface dose of the head phantom (THRA‐1) is defined as a crystalline lens exposure dose and is measured using a radiophotoluminescence ...
Tatsuya Yoshida   +5 more
wiley   +1 more source

Clinical utility of dental cone-beam computed tomography: current perspectives

open access: yesClinical, Cosmetic and Investigational Dentistry, 2014
Prashant P Jaju,1 Sushma P Jaju21Oral Medicine and Radiology, 2Conservative Dentistry and Endodontics, Rishiraj College of Dental Sciences and Research Center, Bhopal, IndiaAbstract: Panoramic radiography and computed tomography were the pillars of ...
Jaju PP, Jaju SP
doaj  

Prevalence of soft tissue calcifications in CBCT images from the Oral and Maxillofacial Radiology Service at UNAB, Viña del Mar, Chile.

open access: yesJournal of Oral Research, 2020
Soft tissue calcifications can indicate the presence of more serious, potentially life-threatening pathologies. Therefore, their study can lead to an early diagnosis of those conditions that have not yet become clinically apparent.
Patricio Meléndez-Rojas   +2 more
doaj   +1 more source

Detection and correction of errors with quantum tomography [PDF]

open access: yes, 2001
It is shown that quantum tomography can detect and correct unlimited number of errors during the evaluation of quantum algorithms on quantum computer.
arxiv   +1 more source

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