Applications of Technical Fusion in Uroradiology

Abstract

Technical fusion is defined as the ultrasound-guided navigation through a previously generated 3 D imaging dataset such as a computed tomography (CT) or magnetic resonance imaging (MRI). This technique allows for moving the fused CT/MRI datasets synchroneously with the real-time ultrasound in the same plane. Established and furthermore not yet described applications, the technical principles and the limitations of this promising technique will be introduced.

Key points:

• improves detection rates of lesions on ultrasound

• more reliable size controls at different time points

• may be an alternative to in bore biopsies

• can be used for focal therapy

Citation Format:

• Aigner F, De Zordo T, Pallwein-Prettner L et al. Applications of Technical Fusion in Uroradiology. Fortschr Röntgenstr 2015; 187: 331 – 337

Zusammenfassung

Unter technischer Fusion versteht man das ultraschallgeführte Navigieren durch einen zuvor generierten 3D-Bildatensatz wie beispielsweise einer Computertomografie (CT) oder Kernspintomografie (MRT). Diese Technik erlaubt es, die in das Ultraschallgerät eingespielten CT/MRT-Datensätze simultan mit dem durchgeführten Echtzeitultraschall zu bewegen, nachdem selbe Schichtpositionen anhand bestimmter anatomischer „Landmarken“ registriert wurden. In der vorliegenden Arbeit werden etablierte, aber auch noch nicht beschriebene Einsatzmöglichkeiten, die Technik und die Limitationen dieser interessanten Methode auf dem Gebiete der Uroradiologie beschrieben.

Key words

fusion imaging - targeted biopsy - ultrasound - prostate cancer - renal lesion - contrast enhanced ultrasound

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