Contrast-enhanced power Doppler US in the diagnosis of acute appendicitis

Diagnostic Value of Appendicular Doppler USG in Acute Appendicitis

“…These results are consistent with those in the literature, which report high rates of diagnostic success with contrast-induced appendicular Doppler imaging used to diagnose acute appendicitis. [10] Some studies have compared abdominal CT and Doppler USG. One such study, by Gaitini et al, compared the diagnostic values of appendicular Doppler USG and CT in patients with acute appendicitis and found that Doppler's sensitivity was 74.2%, specificity was 97%, PPV and NPV were both 88%, and accuracy was 93%.…”

“…The authors concluded that contrast-induced Doppler USG had near-complete accuracy in both inflamed and gangrenous appendicitis and that it is a strong candidate for being the most valuable diagnostic tool to diagnose acute appendicitis. [10] …”

Untitled

“…For instance, patients with no enhancement can be separated from those with enhancement or the patients can be categorized according to where in the GI-wall the enhancement is detectable [42,43,55,56]. The operators' interpretation and the sensitivity of the US equipment may, however, affect the results [57].…”

Beeindruckendes Sonogramm einer Appendizitis

“…4 Sonomorpholgie bei Appendizitis a.-p.-Durchmesser der Appendix von ≥6 mm und mehr [9] Fehlende Komprimierbarkeit der Appendix [6] Druckschmerz über der verdickten Appendix [6] Runde Konfiguration der Appendix im Querschnitt [10] Fehlende Luft in der Appendix [11] Mehrdurchblutung der Appendix bzw. des umgebenden Fettgewebes im Farbdoppler [12] Kotstein in der Appendix Alteriertes Fettgewebe in der Umgebung [13] Mäßig vergrößerte lokoregionäre Lymphknoten…”