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  • Abdomen, CT  (1)
  • Sigmoid colon, diverticulosis and cancer  (1)
  • 1
    Electronic Resource
    Electronic Resource
    False-negative barium enema in patients with sigmoid cancer and coexistent diverticula (1985)
    Springer
    Abdominal imaging 10 (1985), S. 171-173 
    Details
    ISSN: 1432-0509
    Keywords: Barium enema, diagnosis ; Colon, carcinoma ; Sigmoid colon, diverticulosis and cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The false-negative rate of barium enema examinations for the recognition of polypoid sigmoid cancer was evaluated in 167 patients with histologically proven carcinoma. The cases were classified according to the coexistence of sigmoid diverticula. In patients with less than 15 diverticula, 3.1% of lesions were missed, while in those with more than 15 diverticula, 20.4% of tumors were undetected. The overall error rate was 7.2%. Extensive diverticulosis is an important factor limiting the sensitivity of barium enema examinations for the evaluation of sigmoid masses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01893095
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Flattened inferior vena cava: A normal finding on unenhanced abdominal computed tomographic scan (1996)
    Springer
    Emergency radiology 3 (1996), S. 16-19 
    Details
    ISSN: 1438-1435
    Keywords: Abdomen, CT ; CT, contrast media ; Trauma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Flattening of the infrahepatic inferior vena cava (IVC) on postcontrast computed tomographic (CT) scans has been reported as a sign of severe hypovolemia. The significance of this finding on unenhanced CT scans, however, has not been reported. We retro-spectively studied 60 consecutive outpatient abdominal CT scans in which both unenhanced and postcontrast sequences were performed. Flattening of the infrahepatic IVC on unenhanced CT images was noted in six patients (10%) without evidence of hypovolemia or extrinsic IVC compression. The degree of IVC fullness increased in 43 study patients overall (72%) after contrast administration. We propose several mechanisms for postcontrast IVC distention and conclude that a flattened infrahepatic IVC on unenhanced CT scans does not indicate hypovolemia in the absence of other suggestive clinical or CT findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01508160
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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