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COLLIMATOR, X-RAY

Known as: ALIGNER, BEAM, X-RAY 
A dental X-ray position indicating device is a device, such as a collimator, cone, or aperture, that is used in dental radiographic examination. The… Expand
National Institutes of Health

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Related topics

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Diagnostic radiologic examination

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2018
2018
Sensitivity study of an automated system for daily patient QA using EPID exit dose images
The dosimetric consequences of errors in patient setup or beam delivery and anatomical changes are not readily known. A new… Expand
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2017
2017
Mechanical load exerted by PET-G aligners during mesial and distal derotation of a mandibular canine
IntroductionThe six force–moment (F/M) components exerted by aligners of different thickness during simulated mesiorotation and… Expand
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2017
2017
Real-time auto-adaptive margin generation for MLC-tracked radiotherapy
In radiotherapy, abdominal and thoracic sites are candidates for performing motion tracking. With real-time control it is… Expand
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2013
2013
Effect of MLC leaf position, collimator rotation angle, and gantry rotation angle errors on intensity-modulated radiotherapy plans for nasopharyngeal carcinoma.
The purpose of this study was to investigate the effect of multileaf collimator (MLC) leaf position, collimator rotation angle… Expand
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2009
2009
Cytotoxicity and estrogenicity of Invisalign appliances.
INTRODUCTION Our purpose was to study the in-vitro cytotoxic and estrogenic properties of Invisalign appliances (Align Technology… Expand
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2005
2005
Motivation, Acceptance and Problems of Invisalign® Patients
Aim:This study examined how well patients accepted and to what extent they were impaired by Invisalign® treatment.Patients and… Expand
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2005
2005
A Comparison of the Periodontal Health of Patients during Treatment with the Invisalign® System and with Fixed Orthodontic Appliances
Objective:Evaluation of the periodontal health in patients during treatment with either fixed orthodontic appliances or the… Expand
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2004
2004
Optimal leaf sequencing with elimination of tongue-and-groove underdosage.
The individual leaves of a multileaf collimator (MLC) have a tongue-and-groove or stepped-edge design to minimize leakage… Expand
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2003
2003
Physical characteristics of low and medium energy collimators for 123I imaging and simultaneous dual-isotope imaging.
Septal penetration of high energy photons may degrade 123I images obtained with a low energy collimator. We evaluated the… Expand
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1998
1998
Transmission imaging for nonuniform attenuation correction using a three-headed SPECT camera.
UNLABELLED Our objective was to build and test a new system for transmission CT (TCT) imaging on a three-headed SPECT camera. The… Expand
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