Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이유경 | - |
dc.date.accessioned | 2018-03-21T07:53:07Z | - |
dc.date.available | 2018-03-21T07:53:07Z | - |
dc.date.issued | 2012-09 | - |
dc.identifier.citation | Journal of computer assisted tomography, 2012, 36(5), P.512-517 | en_US |
dc.identifier.issn | 0363-8715 | - |
dc.identifier.uri | https://journals.lww.com/jcat/pages/articleviewer.aspx?year=2012&issue=09000&article=00002&type=abstract | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/50168 | - |
dc.description.abstract | Objective: The purpose of this study was to compare image quality of iterative reconstruction (IR) to filtered back projection (FBP) in low-dose computed tomography of the chest. Methods: Forty-three consecutive patients were retrospectively enrolled. Eight series of images were reconstructed using FBP and 7 levels of IR in each subject. Image noise, signal-to-noise ratio (SNR), and SNR improvement were measured. Two radiologists evaluated subjective artifact, image artificiality, and subjective overall image quality with 4- or 5-point scales. Results: Iterative reconstruction showed significantly lower image noise (135.5 +/- 36.6 vs 219.9 +/- 40.9) and higher SNR (0.36 +/- 0.12 vs 0.21 +/- 0.05) than FBP (P < 0.001). Signal-to-noise ratio improvement was 72.4% +/- 44.9%. Subjective artifact of FBP was significantly higher than IR images (P < 0.001). Image artificiality of IR was significantly higher than that of FBP (P < 0.001). Overall, subjective image quality was poor in FBP and acceptable or good in IR. Conclusions: With the use of IR, low-dose computed tomography of the chest would achieve less image noise and better image quality compared to the FBP. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Lippincott Williams and Wilkins | en_US |
dc.subject | lung | en_US |
dc.subject | computed tomography | en_US |
dc.subject | iterative reconstruction | en_US |
dc.subject | radiation dose | en_US |
dc.subject | image quality | en_US |
dc.title | Low-Dose Computed Tomography of the Chest Using Iterative Reconstruction Versus Filtered Back Projection: Comparison of Image Quality | en_US |
dc.type | Article | en_US |
dc.relation.no | 5 | - |
dc.relation.volume | 36 | - |
dc.identifier.doi | 10.1097/RCT.0b013e318260ce39 | - |
dc.relation.page | 512-517 | - |
dc.relation.journal | JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY | - |
dc.contributor.googleauthor | Lee, Youkyung | - |
dc.contributor.googleauthor | Jin, Kwang Nam | - |
dc.contributor.googleauthor | Lee, Nyoung Keun | - |
dc.relation.code | 2012204907 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF MEDICINE[S] | - |
dc.sector.department | DEPARTMENT OF MEDICINE | - |
dc.identifier.pid | youkyunglee | - |
dc.identifier.researcherID | I-7594-2017 | - |
dc.identifier.orcid | http://orcid.org/0000-0002-0939-4574 | - |
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