Abstract：
BACKGROUND:Abdominal trauma, leading to intra-abdominal bleeding, is a life-threatening condition that might need emergency surgical intervention. Sonography and Computed Tomography (CT) are most commonly used to detect free intra-abdominal fluid. This study investigates the accuracy of CT to distinguish between ascites and intra-abdominal hemorrhage. METHODS:Ascites were collected during a clinical routine. Three serial dilutions, mixing ascites with whole blood samples of the patient and with two blood group identical donors, were prepared. Laboratory-chemical analysis and radiological evaluation using CT with measurement of average Hounsfield Units (HU) were performed. RESULTS:Between ascites and whole blood as well as between ascites and the 1:1-ratio-samples, HU values differed significantly (p < 0.001). All further dilutions showed HU values with no significant difference compared to ascites (p ≥ 0.42). Whole blood showed significantly higher HU values than ascites and every step of the serial dilutions (p < 0.001). Measured HU values were also dependent on time and the exact point of measurement in the micro reaction vessels. CONCLUSIONS:In patients suffering from blunt abdominal trauma with preexisting ascites, HU values in CT imaging are not valid enough to exclude an acute hemorrhage.
journal_name
J Clin Medjournal_title
Journal of clinical medicineauthors
Kerschbaum M,Schurr LA,Riedl M,Mayr A,Weiß I,Klute L,Popp D,Pfeifer C,Ernstberger A,Alt V,Dendl LMdoi
10.3390/jcm10010076subject
Has Abstractpub_date
2020-12-28 00:00:00issue
1issn
2077-0383pii
jcm10010076journal_volume
10pub_type
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