OCT-assisted control of catheter positioning in the urethra of the rabbit — A feasibility study

1. Background A fundamental precondition of local radiotherapy by means of 32P-loaded urethral catheters is a precise position with respect to the target tissue. This feasibility study investigates optical coherence tomography (OCT)-assisted examination of the catheter position and its adherence to the tissue surface. Materials and methods OCT investigations were performed using an animal model (rabbit urethra, n=4). A radial scanning OCT probe located in the lumen of the catheter provided OCT images of the catheter structure as well as of the surrounding tissue. Descriptive evaluation of the OCT images gives information about the fitting, the structure of the catheter, as ... (Read Full Article)

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