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Image quality and dose analysis in PA chest x-ray: comparison between AEC and manual mode acquisition using the 10 kVp rule

2014-03Conference object Open access
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dc.contributor.authorReis, Cláudia
dc.contributor.authorGonçalves, João
dc.contributor.authorKlompmaker, Corrie
dc.contributor.authorBárbara, Ana
dc.contributor.authorBloor, Chloe
dc.contributor.authorHegarty, Ryan
dc.contributor.authorLagrange, Tania
dc.contributor.authorTemming, Noëlle
dc.contributor.authorSønnesyn, Mathilde
dc.contributor.authorRøkeness, Henritte
dc.contributor.authorYamasathien, Amandine
dc.contributor.authorHogg, Peter
dc.date.accessioned2015-08-17T15:05:06Z
dc.date.available2015-08-17T15:05:06Z
dc.date.issued2014-03
dc.description.abstractPurpose: To compare image quality and effective dose when the 10 kVp rule is applied with manual and AEC mode in PA chest X-ray. Methods and Materials: A total of 68 images (with and without lesions) were acquired of an anthropomorphic chest phantom in a Wolverson Arcoma X-ray unit. The images were evaluated against a reference image using image quality criteria and the 2 alternative forced choice (2 AFC) method by five radiographers. The effective dose was calculated using PCXMC software using the exposure parameters and DAP. The exposure index (lgM) was recorded. Results: Exposure time decreases considerably when applying the 10 kVp rule in manual mode (50%-28%) compared to AEC mode (36%-23%). Statistical differences for effective dose between several AEC modes were found (p=0.002). The effective dose is lower when using only the right AEC ionization chamber. Considering image quality, there are no statistical differences (p=0.348) between the different AEC modes for images with no lesions. Using a higher kVp value the lgM values will also increase. The lgM values showed significant statistical differences (p=0.000). The image quality scores did not present statistically significant differences (p=0.043) for the images with lesions when comparing manual with AEC modes. Conclusion: In general, the dose is lower in the manual mode. By using the right AEC ionising chamber the effective dose will be the lowest in comparison to other ionising chambers. The use of the 10 kVp rule did not affect the detectability of the lesions.por
dc.identifier.citationReis C, Gonçalves J, Klompmaker C, Bárbara A, Bloor C, Hogg P, et al. Image quality and dose analysis in PA chest x-ray: comparison between AEC and manual mode acquisition using the 10 kVp rule. In European Congress of Radiology, Vienna (Austria), 6th to 10th March 2014. Insights Imaging. 2014;5(1 Suppl):S165.por
dc.identifier.doi10.1007/s13244-014-0317-5
dc.identifier.urihttp://hdl.handle.net/10400.21/4779
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.relation.publisherversionhttp://link.springer.com/article/10.1007/s13244-014-0317-5por
dc.subjectRadiologypor
dc.subjectChest X-raypor
dc.subjectImage qualitypor
dc.subjectDosimetrypor
dc.titleImage quality and dose analysis in PA chest x-ray: comparison between AEC and manual mode acquisition using the 10 kVp rulepor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.endPageS165por
oaire.citation.startPageS165por
oaire.citation.titleInsights Imagingpor
oaire.citation.volume5por
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor

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