Panoramabildgebung der Blase: Vom Phantom zu präklinischen Experimenten

Zusammenfassung

Zur Untersuchung der Harnblase wird die Blasenwand mittels starrer oder flexibler Zystoskopie in der klinischen Routine visuell begutachtet, um Gewebeveränderungen zu erkennen und zu behandeln. Durch Methoden der digitalen Bildverarbeitung lassen sich aus zystoskopischen Videosequenzen sog. „Panoramabilder“ oder „Mosaike“ in Echtzeit berechnen, mit derer sich der Verlauf und die Vollständigkeit einer Untersuchung darstellen lässt. Zudem lassen sich solche Panoramabilder für eine erweiterte Dokumentation in digitale Patientenakten integrieren. Dieser Beitrag beschreibt ein prototypisches System für die Erstellung von Blasenpanoramen und präsentiert Ergebnisse aus einem Blasenphantom, sowie retrospektiv verrechneten Zystoskopiesequenzen.

Abstract

In order to detect and treat lesions in the bladder, for clinical examinations the bladder wall is visually inspected in the form of rigid or flexible cystoscopies. Using methods of digital image processing, cystoscopic image sequences can be converted in real-time into so-called „panoramic images“ or „mosaics“, which can be used to document the process as well the completeness of such an examination. Furthermore, such digital panoramic images can be included in the digital patient record for enhanced documentation. This contribution describes a prototype for the computation of panoramic bladder images and presents first results based on a bladder phantom and retrospective real cystoscopic videos.

Schlüsselwörter

Zystoskopie - Stitching - Mosaicking - Panoramabildgebung - Bilderverarbeitung

Key words

cystoscopy - stitching - mosaicking - panorama imaging - image processing

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