Ultrasonography Fused with PET-CT Hybrid Imaging

Author(s): Jesper Udesen, Caroline Ewertsen, Fredrik Gran, Anders Fogh Christensen, Flemming Kjaer-Kristoffersen, Svend Aage Engelholm, Jørgen Arendt Jensen, Michael Bachmann Nielsen.

Journal Name: Current Medical Imaging
Formerly: Current Medical Imaging Reviews

Volume 7 , Issue 3 , 2011

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Abstract:

We present a method with fusion of images of three modalities 18F-FDG PET, CT, and 3-D ultrasound (US) applied to imaging of the anal canal and the rectum. To obtain comparable geometries in the three imaging modalities, a plexiglas rod, with the same dimensions as the US transducer, is placed in the anal canal prior to the PET-CT examination. The method is based on manual co-registration of PET-CT images and 3-D US images. The three-modality imaging of the rectum-anal canal may become useful as a supplement to conventional imaging in the external radiation therapy in the treatment of anal cancer, where the precise delineation of a tumor is crucial to avoid damage from radiation therapy to the healthy tissue surrounding it. The technique is still in a phase of development, and the demands for integration different company software systems are significant before commercial application. Three-modality imaging may also be used in certain other diagnostic or therapeutic fields.

Keywords: Image fusion, PET-CT., ultrasound

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Article Details

VOLUME: 7
ISSUE: 3
Year: 2011
Page: [248 - 251]
Pages: 4
DOI: 10.2174/157340511796411159
Price: $58

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