| Autor: |
Cohnen, Mathias, Saleh, Andreas, Lüthen, Reinhard, Bode, Johannes, Mödder, Ulrich, Lüthen, Reinhard, Mödder, Ulrich |
| Předmět: |
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| Zdroj: |
Journal of Vascular & Interventional Radiology; Jan2003, Vol. 14 Issue 1, p103-106, 4p |
| Abstrakt: |
The visibility of a transjugular intrahepatic portosystemic stent-shunt (TIPS) puncture needle was assessed with use of real-time compound imaging and single-line ultrasonography (US). In vitro and in vivo, needle–tissue contrast was calculated. With an increasing angle of incidence, the decrease in needle visibility was more pronounced for single-line US than for compound imaging. At angles of incidence of more than 30°, the needle was barely visible with either technique. Subjective evaluation during TIPS procedures in 10 patients proved that the needle tip was significantly better seen with compound imaging. Therefore, real-time compound imaging significantly improved contrast and subjective visibility of the needle. [Copyright &y& Elsevier] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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