English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

X-ray CT dose measurement has mainly been performed using an ionizationchamber dosimeter. Therefore, the dose distribution has not been sufficientlystudied. We investigated the importance of evaluating the two orthree-dimensional dose distributions for X-ray computed tomography (CT). Toconfirm this purpose, we investigated the effects of phantom size and exposureparameters on the phantom diameter. We performed 12 scans using XR-QA2 film andcylindrical acrylic phantoms of two lengths. The tube current and slicethicknesses were varied as exposure parameters. The dose distribution of theprimary and scattered radiation was visu-alised using ImageJ. The results wereevaluated using the profile curves, three-dimensional surface plots, andsubtrac-tion dose images. We observed changes in the dose distributions forscans with and without phantoms. However, no significant differ-ence in thedose distribution was observed with changes in the lengths of the phantom. Tovisualise the dose distribution, three-dimensional surface plots andsubtraction images were found helpful. We must confirm that the dosedistribution does not change for phantoms with multiple diameters in futurestudies. For using a clinical application, accurate quantitative assessment ofdose distribution requires improved accuracy of the calibration curve.

The visualisation of two-dimensional dose distribution on X-ray CT using radiochromic film