Related Experiment Videos
Color Doppler US of children with acute lower abdominal pain
1Mallinckrodt Institute of Radiology, Washington University Medical Center, St Louis, MO 63110.
Insights
Color Doppler ultrasonography (US) aids in diagnosing acute lower abdominal pain in children by identifying appendicitis and other conditions. It distinguishes increased blood flow in infections from absent flow in cysts and torsions.
Area of Science:
- Radiology
- Pediatric Imaging
- Abdominal Diseases
Background:
- Acute lower abdominal pain in children often presents diagnostic challenges.
- Differential diagnoses include appendicitis, gynecologic, gastrointestinal, and urinary tract abnormalities.
- Gray-scale ultrasonography (US) is a primary imaging modality.
Purpose of the Study:
- To review the color Doppler ultrasonographic (US) features of appendicitis and other causes of acute lower abdominal pain in children.
- To highlight the utility of color Doppler US as an adjunct to gray-scale US in pediatric abdominal pain evaluation.
Main Methods:
- Review of color Doppler US findings in various conditions causing acute lower abdominal pain.
- Comparison of Doppler characteristics (blood flow patterns) between inflammatory/infectious processes and other pathologies.
- Evaluation of color Doppler US in conjunction with gray-scale US for diagnostic clarification.
Main Results:
- Inflammatory and infectious conditions typically demonstrate locally increased blood flow on color Doppler US.
- Ovarian cysts and ovarian torsion exhibit absent blood flow (avascularity).
- Enlarged lymph nodes are also avascular.
Conclusions:
- Color Doppler US is a valuable tool for evaluating acute lower abdominal pain in children.
- It enhances diagnostic accuracy by differentiating pathologies based on blood flow patterns.
- Color Doppler US effectively complements gray-scale US in defining and clarifying abnormalities.
Abstract:
The authors review the color Doppler ultrasonographic (US) features of appendicitis and other diseases that can manifest with acute lower abdominal pain. Causes of acute abdominal pain, other than appendicitis, include gynecologic abnormalities (ovarian cyst, ovarian torsion, pelvic inflammatory disease), gastrointestinal abnormalities (infectious enteritis, Crohn disease, mesenteric lymphadenitis, intussusception), and urinary tract diseases. On color Doppler images, inflammatory and infectious processes usually show locally increased blood flow, whereas cysts and twisted masses have absent blood flow. Enlarged lymph nodes also are avascular. Color Doppler US is a useful adjunct to gray-scale US in evaluating acute lower abdominal pain in children and can aid in defining and clarifying gray-scale abnormalities.