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Unenhanced computed tomography for normal appendix detection: comparison of low-dose with statistical iterative reconstruction and regular-dose with filtered back projection
- Authors
- Park, Hwi Ryong; Park, Sung Bin; Lee, Eun Sun; Park, Hyun Jeong; Lee, Jong Beum; Kim, Yang Soo
- Issue Date
- May-2017
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Appendix; Appendicitis; Low-dose computed tomography; Radiation exposure; Iterative reconstruction
- Citation
- CLINICAL IMAGING, v.43, pp 117 - 121
- Pages
- 5
- Journal Title
- CLINICAL IMAGING
- Volume
- 43
- Start Page
- 117
- End Page
- 121
- ISSN
- 0899-7071
1873-4499
- Abstract
- Purpose: To evaluate the differences in visualization of a normal appendix between regular-dose (RD) and low dose (LD) unenhanced Cr. Material and methods: 179 patients underwent both RDCT and LDCT for urolithiasis. Two reviewers evaluated the appendiceal visualization on a three-point scale. Sensitivities and interobserver agreement were measured. Results: There were no significant differences between RDCT and LDCT in sensitivity, regardless of the reviewer. interobserver agreement was excellent in both RDCT and LDCT. Conclusion: Unenhanced LDCT is a good tool for detecting a normal appendix and is also useful for less experienced interpreters who are unfamiliar with using LDCT images. (C) 2017 Elsevier Inc. All rights reserved.
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