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  • Key words: Color Doppler—Splenic artery—Aneurysm—Ultrasound—Collaterals (splenorenal shunt).  (1)
  • Key words: Cyst—Doppler—Mesentery—M-mode— Ultrasound.  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Splenic artery aneurysm: value of color Doppler and the limitation of gray-scale ultrasonography (1998)
    Springer
    Abdominal imaging 23 (1998), S. 627-632 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Color Doppler—Splenic artery—Aneurysm—Ultrasound—Collaterals (splenorenal shunt).
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: To reevaluate the advantages and limitations of gray-scale and color Doppler sonography in the diagnosis of splenic artery (Sp-A) aneurysm. Methods: We reviewed the gray-scale and color Doppler sonograms of five cases with Sp-A aneurysm (four patients with portal hypertension and one patient without portal hypertension). Color Doppler sonography was performed in all five patients, and power Doppler sonography was performed in three. Results: Gray-scale sonography failed to detect the aneurysm in four of five cases because of a surrounding splenorenal (Sp-R) shunt in three patients and marked calcification of the aneurysmal wall in one patient. Pulsed Doppler sonography showed a slightly turbulent pulsatile flow along the aneurysmal wall, which immediately led to the diagnosis in four cases, including the three cases with Sp-R shunt. In one case, color Doppler sonography failed to detect the aneurysm because of a markedly calcified aneurysmal wall, although power Doppler sonography could visualize the aneurysm. Conclusions: Gray-scale sonography is not a useful diagnostic tool for Sp-A aneurysm. Clinicians should use color Doppler sonography in the evaluation of the splenic hilus in patients with Sp-R shunt to find a small Sp-A aneurysm. The addition of power Doppler sonography is helpful in visualizing calcified Sp-A aneurysms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900418
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mesenteric cyst: sonographic findings (2000)
    Springer
    Abdominal imaging 25 (2000), S. 306-310 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Cyst—Doppler—Mesentery—M-mode— Ultrasound.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Mesenteric cyst (MC) is a relatively rare disease, and its sonographic characteristics have not been sufficiently analyzed. Methods: We studied the sonographic findings of eight patients with MC, with attention paid to its size, shape, internal echoes, and especially the presence or absence of lateral shadowing and the mode of back echoes. In four cases, the sound velocity and acoustic impedance of cystic fluid were also measured. The mode of blood flow was evaluated by color Doppler sonography. Results: Six cases showed an oval or comma-shaped mass. Internal echoes were present in six cases, and two of them showed a pseudosolid pattern. In these cases, M-mode sonography confirmed the movement of these internal echoes. Only one case showed a posterior echo enhancement, and no case showed lateral shadowing. Sound velocity measured in four cases was 1515–1537 m/s, with an acoustic impedance of 1.550–1.576 kg/m2/s. No blood flow signals were obtained from the lesion. Conclusion: MC exhibits so many patterns on ultrasound that we should consider the possibility of MC when encountering an avascular oval mesenteric mass.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002610000037
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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