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Technical Note: Confirming the prescribed angle of CT localizer radiographs and c‐arm projection acquisitions

Overview of attention for article published in Medical Physics, January 2016
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Title
Technical Note: Confirming the prescribed angle of CT localizer radiographs and c‐arm projection acquisitions
Published in
Medical Physics, January 2016
DOI 10.1118/1.4940124
Pubmed ID
Authors

Timothy P Szczykutowicz, Zacariah E Labby, Nicholas Rubert, Charles Wallace

Abstract

Accurate CT radiograph angle is not usually important in diagnostic CT. However, there are applications in radiation oncology and interventional radiology in which the orientation of the x-ray source and detector with respect to the patient is clinically important. The authors present a method for measuring the accuracy of the tube/detector assembly with respect to the prescribed tube/detector position for CT localizer, fluoroscopic, and general radiograph imaging using diagnostic, mobile, and c-arm based CT systems. A mathematical expression relating the x-ray projection of two metal BBs is related to gantry angle. Measurement of the BBs at a prescribed gantry (i.e., c-arm) angle can be obtained and using this relation the prescribed versus actual gantry angle compared. No special service mode or proprietary information is required, only access to projection images is required. Projection images are available in CT via CT localizer radiographs and in the interventional setting via fluorography. The technique was demonstrated on two systems, a mobile CT scanner and a diagnostic CT scanner. The results confirmed a known issue with the mobile scanner and accurately described the CT localizer angle of the diagnostic system tested. This method can be used to quantify gantry angle, which is important when projection images are used for procedure guidance, such as in brachytherapy and interventional radiology applications.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 10 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Netherlands 1 10%
Unknown 9 90%

Demographic breakdown

Readers by professional status Count As %
Other 4 40%
Researcher 2 20%
Student > Ph. D. Student 1 10%
Student > Master 1 10%
Unknown 2 20%
Readers by discipline Count As %
Medicine and Dentistry 2 20%
Engineering 2 20%
Social Sciences 1 10%
Business, Management and Accounting 1 10%
Neuroscience 1 10%
Other 1 10%
Unknown 2 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 January 2016.
All research outputs
#19,995,718
of 24,571,708 outputs
Outputs from Medical Physics
#6,311
of 7,889 outputs
Outputs of similar age
#297,110
of 404,619 outputs
Outputs of similar age from Medical Physics
#147
of 155 outputs
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So far Altmetric has tracked 7,889 research outputs from this source. They receive a mean Attention Score of 3.4. This one is in the 10th percentile – i.e., 10% of its peers scored the same or lower than it.
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