Diagnosis of Acute Appendicitis With Sliding Slab Ray-Sum Interpretation of Low-Dose Unenhanced CT and Standard-Dose IV Contrast-Enhanced CT Scans
Hyobin Seo1,
Kyoung Ho Lee1,
Hyuk Jung Kim2,
Kyuseok Kim3,
Sung-Bum Kang4,
So Yeon Kim1 and
Young Hoon Kim1
1 Department of Radiology, Seoul National University College of Medicine, Seoul
National University Bundang Hospital 300 Gumi-dong, Bundang-gu, Seongnam-si,
Gyeonggi-do, 463-707, Korea.
2 Department of Radiology, Seoul Medical Center, Seoul, Korea.
3 Department of Emergency Medicine, Seoul National University Bundang Hospital,
Seoul National University College of Medicine, Gyeonggi-do, Korea.
4 Department of Surgery, Seoul National University Bundang Hospital, Seoul
National University College of Medicine, Gyeonggi-do, Korea.
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Fig. 2A —21-year-old woman with acute appendicitis and body mass index
of 17.4. Low-dose unenhanced (A and B) and standard-dose IV
contrast-enhanced (C and D) transverse CT scans show enlarged
appendix (solid arrows) containing air and appendicolith (open
arrows, B and D). Two readers assigned score of 5 for
presence of appendicitis on both types of scan. See also Figure S2C and S2D,
cine loops, in supplemental data online.
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Fig. 2B —21-year-old woman with acute appendicitis and body mass index
of 17.4. Low-dose unenhanced (A and B) and standard-dose IV
contrast-enhanced (C and D) transverse CT scans show enlarged
appendix (solid arrows) containing air and appendicolith (open
arrows, B and D). Two readers assigned score of 5 for
presence of appendicitis on both types of scan. See also Figure S2C and S2D,
cine loops, in supplemental data online.
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Fig. 2C —21-year-old woman with acute appendicitis and body mass index
of 17.4. Low-dose unenhanced (A and B) and standard-dose IV
contrast-enhanced (C and D) transverse CT scans show enlarged
appendix (solid arrows) containing air and appendicolith (open
arrows, B and D). Two readers assigned score of 5 for
presence of appendicitis on both types of scan. See also Figure S2C and S2D,
cine loops, in supplemental data online.
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Fig. 2D —21-year-old woman with acute appendicitis and body mass index
of 17.4. Low-dose unenhanced (A and B) and standard-dose IV
contrast-enhanced (C and D) transverse CT scans show enlarged
appendix (solid arrows) containing air and appendicolith (open
arrows, B and D). Two readers assigned score of 5 for
presence of appendicitis on both types of scan. See also Figure S2C and S2D,
cine loops, in supplemental data online.
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Fig. 3A —31-year-old man with appendicitis and BMI of 31.3. Low-dose
unenhanced (A) and standard-dose IV contrast-enhanced (B)
transverse CT scans show enlarged appendix (solid arrow) and
increased attenuation of mesoappendiceal fat (open arrow). Two
readers assigned score of 5 for presence of appendicitis at both types of
scan. See also Figures S3C and S3D, cine loops, in supplemental data
online.
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Fig. 3B —31-year-old man with appendicitis and BMI of 31.3. Low-dose
unenhanced (A) and standard-dose IV contrast-enhanced (B)
transverse CT scans show enlarged appendix (solid arrow) and
increased attenuation of mesoappendiceal fat (open arrow). Two
readers assigned score of 5 for presence of appendicitis at both types of
scan. See also Figures S3C and S3D, cine loops, in supplemental data
online.
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Copyright © 2009 by the American Roentgen Ray Society.
