Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Editor

Personal info

View

About

Terms

Javascript disabled

Please enable Javascript support in your browser to use this application.

Instructions on how to enable JavaScript on different browsers can be found here: http://www.google.com/support/bin/answer.py?answer=23852.

[edit this page]

Mitterberger, M. et al.

Michael Mitterberger, Germar M. Pinggera, Richard Neururer, Reinhard Peschel, Daniela Colleselli, Friedrich Aigner, Johann Gradl, Georg Bartsch, Hannes Strasser, Leo Pallwein, Ferdinand Frauscher,

Comparison of contrast-enhanced color Doppler imaging (CDI), computed tomography (CT), and magnetic resonance imaging (MRI) for the detection of crossing vessels in patients with ureteropelvic junction obstruction (UPJO).

OBJECTIVE: To assess the use of contrast-enhanced color Doppler imaging (CDI), computed tomography (CT), and magnetic resonance imaging (MRI) for the detection of crossing vessels at the ureteropelvic junction (UPJ) in patients with ureteropelvic junction obstruction (UPJO). MATERIALS AND METHODS: Forty-eight patients aged 18-69 yr (mean age, 52) who had been diagnosed with an UPJO on intravenous pyelography and diuretic renography were included. Contrast-enhanced CDI was performed by using both color Doppler frequency and color Doppler amplitude ("Power") modes. Spiral CT was performed by using a three-phase CT (arterial, venous, and excretory phases) allowing for CT angiography. MRI technique included dual-phase magnetic resonance angiography (arterial, venous) for the assessment of respective arteries and veins. The type (ie, arterial or venous) and position of the vessel relative to the UPJ (ie, anterior or posterior) were assessed. The CDI, CT, and MRI findings were correlated with the surgical findings at laparoscopic pyeloplasty. RESULTS: Forty-four of 48 patients (92%) demonstrated crossing vessels at subsequent laparoscopy. Altogether a total of 60 vessels were detected. Contrast-enhanced CDI and MRI correctly detected all crossing vessels (accuracy, 100%), whereas CT missed four posterior crossing veins (accuracy, 93%). CONCLUSION: Contrast-enhanced CDI is recommended as first-line imaging modality for the detection of crossing vessels in patients with UPJO.[1]

References

Comparison of contrast-enhanced color Doppler imaging (CDI), computed tomography (CT), and magnetic resonance imaging (MRI) for the detection of crossing vessels in patients with ureteropelvic junction obstruction (UPJO). Mitterberger, M., Pinggera, G.M., Neururer, R., Peschel, R., Colleselli, D., Aigner, F., Gradl, J., Bartsch, G., Strasser, H., Pallwein, L., Frauscher, F. Eur. Urol. (2008) [Pubmed]

Annotations and hyperlinks in this abstract are from individual authors of WikiGenes or automatically generated by the WikiGenes Data Mining Engine. The abstract is from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.About WikiGenes Open Access Licence Privacy Policy Terms of Use apsburg

The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.