The purpose of this study was to test the hypothesis that with improved technology, the presence of abscess in a postoperative fluid collection may be prospectively made. This is an Institutional Review Board-approved, Health Insurance Portability and Accountability Act-compliant retrospective
review of computed tomography (CT)-guided intra-abdominal fluid collection drainages. The diagnostic CT scans of 95 consecutive patients performed on 16- and 64-multidetector CT (MDCT) were reviewed by four readers with varying abdominal imaging expertise. Readers were asked to determine fluid
content, to document whether infection was present, and to rate reader confidence for infection. A fifth radiologist reviewed the collections for imaging characteristics. The gold standard for presence of infection was microbiological Gram stain and culture. The logistic regression model showed
that both fluid collections containing gas or high attenuation fluid (average CT density 20 or greater Hounsfield units) are significant predictors of infection (P = 0.001). The average sensitivity over the four readers for determining presence of infection was 83.4 per cent and specificity
was 39.3 per cent. Even in the era of MDCT, the ability to predict whether or not a fluid collection is infected or not, based on imaging findings alone, is limited. Presence of gas is a strong indicator of infection, but no imaging finding is characteristic of a sterile fluid collection.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA
Department of Biostatistics, Duke University Medical Center, Durham, North Carolina, USA
Publication date: February 1, 2012
More about this publication?
The Southeastern Surgical Congress owns and publishes The American Surgeon monthly. It is the official journal of the Congress and the Southern California Chapter of the American College of Surgeons, which all members receive each month. The journal brings up to date clinical advances in surgical knowledge in a popular reference format. In addition to publishing papers presented at the annual meetings of the associated organizations, the journal publishes selected unsolicited manuscripts. If you have a manuscript you'd like to see published in The American Surgeon select "Information for Authors" from the Related Information options below. A Copyright Release Form must accompany all manuscripts submitted.
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Annual Scientific Meeting
- Ingenta Connect is not responsible for the content or availability of external websites