Abstract
The purpose of our study was to compare power Doppler sonography (US) and conventional color Doppler US in the diagnosis of acute appendicitis by revealing local signs of hyperemia. One hundred consecutive patients (46 males and 54 females, ages 7–61 years; mean, 24.7 years) with clinically suspected acute appendicitis were prospectively examined with power Doppler US and conventional color Doppler US. Of 38 patients who subsequently underwent surgery, appendicitis was proven in 34. The remaining 62 patients who were not submitted to surgery had no clinical evidence of appendicitis over a 2- to 6-month follow-up.
At gray-scale US, the appendix was visualized in 30 (88.2%) of the 34 cases with pathologically proven acute appendicitis. Power Doppler US depicted a moderate to marked hypervascularity of the appendiceal wall and surrounding mesoappendix in 28 (93.3%) of these 30 patients. At conventional color Doppler US, flow signal within the appendiceal wall and surrounding mesoappendix was shown in only 21 (70%) of 30 cases (P<0.05). No false-positive diagnosis was made at either power or color Doppler US among the 62 patients without appendicitis. Power Doppler US is more sensitive than conventional color Doppler imaging for revealing signs of local hyperemia in acute appendicitis.
Similar content being viewed by others
References
Berry J Jr, Malt RA. Appendicitis near its centenary. Ann Surg 1984;200:567–75.
Birnbaum BA, Balthazar EJ. CT of appendicitis and diverticulitis. Radiol Clin North Am 1994;32:885–98.
Puylaert JB. Acute appendicitis: US evaluation using graded compression. Radiology 1986;158:355–60.
Rioux M. Sonographic detection of the normal and abnormal appendix. AJR Am J Roentgenol 1992;158:773–8.
Quillin SP, Siegel MJ. Appendicitis: efficacy of color Doppler sonography. Radiology 1994;191:557–60.
Quillin SP, Siegel MJ. Color Doppler US of children with acute lower abdominal pain. Radiographics 1993;13:1281–93.
Lim HK, Lee WJ, Kim TH, Namgung S, Lee SJ, Lim JH. Appendicitis: usefulness of color Doppler US. Radiology 1996;201:221–5.
Quillin SP, Siegel MJ. Appendicitis in children: color Doppler sonography. Radiology 1992;184:745–7.
Traughber P, Graham E. Absence of color Doppler signal in appendicitis [Letter]. Radiology 1994;190:906.
Rubin JM, Bude RO, Carson PL, Bree RL, Adler RS. Power Doppler US: a potentially useful alternative to mean-frequency-based color Doppler US. Radiology 1994;190:853–6.
Newman JS, Adler RS, Bude RO, Rubin JM. Detection of soft tissue hyperemia: value of power Doppler sonograph. AJR Am J Roentgenol 1994;163:385–9.
Bude RO, Rubin JM. Power Doppler sonography. Radiology 1996;200:21–3.
Abu-Yousef MM, Bleicher JJ, Maher JW, Urdaneta LF, Franken EA Jr, Metcalf AM. High resolution sonography of acute appendicitis. AJR Am J Roentgenol 1987;149:53–8.
Jeffrey RB Jr, Laing FC, Lewis FR. Acute appendicitis: highresolution real-time US finding. Radiology 1987;163:11–4.
Jeffrey RB Jr, Laing FC, Townsend RR. Acute appendicitis: sonographic criteria based on 250 cases. Radiology 1988;167:327–9.
Sivit CJ, Newmann KD, Boenning DA, Nussbaum-Blask AR, Bulas DI, Bond SJ, et al. Appendicitis: usefulness of US in diagnosis in a pediatric population. Radiology 1992;185:549–52.
Jeffrey RB Jr, Jain KA, Nghiem HV. Sonographic diagnosis of acute appendicitis: interpretive pitfalls. AJR Am J Roentgenol 1994;162:55–9.
Bude RO, Rubin JM, Adler RS. Power versus conventional color Doppler sonography: comparison in the depiction of normal intrarenal vasculature. Radiology 1995;192:777–80.
Lencioni R, Pinto F, Armillotta, N, Bartolozzi C. Assessment of tumor vascularity in hepatocellular carcinoma: comparison of power Doppler US and color Doppler US. Radiology 1996;201:353–8.
Pinto F, Lencioni R, Napoli V, Carafoli D, Sbrana R, Bartolozzi C. Acute appendicitis: Advantage of power Doppler US for early diagnosis. Radiology 1996;201:433.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Pinto, F., Lencioni, R., Falleni, A. et al. Assessment of hyperemia in acute appendicitis: Comparison between power Doppler and color Doppler sonography. Emergency Radiology 5, 92–96 (1998). https://doi.org/10.1007/BF02749144
Issue Date:
DOI: https://doi.org/10.1007/BF02749144