Journal of Korean Society of Medical Ultrasound 1997;16(2): 141-146.
Value of Color Doppler Sonography in the Diagnosis of Acute Appendicitis.
Jong Chan Lee, Hak Soo Kim, Ki Young Song, Jeong Geun Yi, Jin Hee Park, Yu Jin Lee, Choon Whan Han, Joo Hyuk Lee
1Department of Radiology, Kangnam General Hospital Public Corporation, Korea.
2Department of Radiology, Choong-Ang Gill Hospital, Korea.
3Department of Radiology, Hallym University College of Medicine, Korea.
  Published online: January 1, 2001.
ABSTRACT
PURPOSE: To assess the clinical usefulness of color Doppler US compared to the gray-scale US in the diagnosis of acute appendicitis. MATERIALS & METHODS: Two-hundred and two patients, clinically suspected to have appendicitis, were examined with gray-scale US and color Doppler US. Diagnostic criteria for appendicitis were dilated (6 mm < or = ), non-compressible appendix with or without periappendiceal abscess on gray-scale US, and increased vascularity in appendiceal wall and surrounding soft tissue on color Doppler US. RESULTS: Sixty nine patients had acute appendicitis, On gray-scale US, sensitivity was 89.1%; specificity 91.3%, and accuracy 90.5%. On color Doppler US, sensitivity, specificity and accuracy were 89.6, 88.2, and 88.6%, respectively. False negative cases were 12 on gray-scale US and 17 on color Doppler US. CONCLUSION: Color Doppler sonography shows the hypervascularity of appendix and surrounding soft tissue with inflammation, but its findings are not essential to a diagnosis of appencitis, and gray-scale US is enough for a diagnosis of appendicitis.
Keywords: Appendix; Appendix. US; Appendictis
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