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| Which Factors Influence the Detection of an Inflamed Appendix: Comparative Assessment of Ultrasonography and CT |
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| Hyun Cheol Kim, M.D. Dal Mo Yang, M.D., Wook Jin, M.D., Chang Woo Ryu, M.D., Seong Jin Park, M.D.*, Hyeong Cheol Shin, M.D.**, Il Young Kim, M.D.**, Du-Shin Jeong, M.D.*** |
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| Department of Radiology, College of Medicine, East-West Neo Medical Center, Kyung-Hee University, *Department of Diagnostic Radiology, College of Medicine, Soonchunhyang University, Bucheon Hospital, **Department of Diagnostic Radiology, Soonchunhyang Uni |
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| PURPOSE : To compare and assess factors influencing the detection of an inflamed appendix by both ultrasonography
(US) and CT.
MATERIALS and METHODS : We retrospectively analyzed US and CT findings of 58 patients with confirmed acute appendicitis
(42 patients with perforation and 16 patients without perforation), in which both preoperative US and
CT scans were performed. We compared the use of US and CT for the diagnostic accuracy of acute appendicitis,
and determined the detection rate for an inflamed appendix. According to the location of the appendix, the
amount of mesenteric fat content in lower abdominal cavity, the presence of cecal wall thickening, and the presence
of pericecal fluid or an abscess, the use of US and CT were compared for the determination of the detection
rate of an inflamed appendix.
RESULTS : The diagnostic accuracies for US and CT for acute appendicitis in our study group were both 93.1%, and
there was no difference between the use of the two modalities. Although the detection rate of an inflamed appendix
was slightly higher for US (93.1%) than for CT (84.5%), the difference between the use of the two modalities
was not significant (p > 0.05). There was no significant difference in the detection rate of an inflamed appendix
between the use of US and CT according to location of appendix, the amount of mesenteric fat content and
the presence of cecal wall thickening. A pelvic location of the inflamed appendix and the presence of pericecal
fluid or an abscess, were factors that significantly increased the detection rate for US than for CT (p < 0.05).
CONCLUSION : The use of US for diagnosis of acute appendicitis is as useful as the use of CT. US is especially useful
to detect an inflamed appendix more effectively than CT in cases where the appendix is in a pelvic location and
presents with pericecal fluid or an abscess. |
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| Keyword : Appendicitis / Appendix, CT / Appendix, US |
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pdf파일 : 59-67김현철.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2007 ; 26 (2) : p.59-67
