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| Assessment of Effectiveness of Ultrasonography in Diagnosis of Acute Appendicitis: Correlation with Level of Initial Clinical Diagnostic Confidence |
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| Soon-Young Song, M.D. Sam Soo Kim, M.D.****, Ja Hong Koo, M.D.,Eun Ja Lee, M.D., Jong In Lee, M.D.*, Jin Ho Jung, M.D.*,Jin Young Kim, M.D.*, Hwa Eun Oh, M.D.**, Won Jin Moon, M.D.***, Han Heon, M.D.**** |
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| Department of Radiology,*General Surgery, and **Pathology, Kwandong Univ College of Medicine, Myongji Hospital ***Department of Radiology, Samsung Medical Center, Sungkyunkwan Univ School of Medicine. ****Department of Radiology, Kangwon National Univ Col |
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| PURPOSE : To evaluate effectiveness of ultrasonography (US) in the diagnosis of acute appendicitis by comparing
with initial level of clinical diagnostic confidence.
MATERIALS and METHODS : Graded compression US of one hundred forty eight with clinically suspected of acute appendicitis
were prospectively evaluated. General surgeons classified patients into three groups based on the clinical
probability before US examination: group 1 as cases with low probability (<25%), group 2 as cases with an
intermediate probability (25-75%) and group 3 as cases with a high probability (>75%). Two radiologists performed
US examination. Statistical significance of ultrasonographic results in each group was assessed.
RESULTS : The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy
of sonography for all patients were 91.3%, 97%, 97.3%, 90.4%, and 93.9% respectively. Those of group 1
were 100%, 95.5%, 84.6%, 100%, and 96.4%, and those of group 2, 95.8%, 100%, 100%, 95%, and 97.7%
while those of group 3, 86.4%, 100%, 100%, 50%, and 88%. There was no statistical difference in each parameter
among three groups. The accuracy and NPV in group 3 was significantly higher than those in groups with the
low and intermediate probability (group 1 and 2).
CONCLUSION : Ultrasonography in the diagnosis of acute appendicitis is an useful and reliable method, especially in
case of low clinical diagnostic confidence. |
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| Keyword : Appendicitis Appendix Appendix, US |
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pdf파일 : 171-175송순영.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2002 ; 21 (3) : p.171-175
