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Abstract #0865

Improved cortical bone segmentation using a spectral-spatial selective pulse to reduce water/fat in-phase echo time

Matteo Maspero 1 , Peter R. Seevinck 2 , Anna Andreychenko 1 , Sjoerd Crijns 1 , Alessandro Sbrizzi 3 , Max Viergever 2 , Jan J. W. Lagendijk 1 , and Cornelis A. T. van Den Berg 1

1 Radiotherapy, UMC Utrecht, Utrecht, Utrecht, Netherlands, 2 Image Sciences Institute, UMC Utrecht, Utrecht, Utrecht, Netherlands, 3 Radiology, UMC Utrecht, Utrecht, Utrecht, Netherlands

This paper purposes an automatic method for bone segmentation in the pelvic region based on in-phase and out-of-phase images acquired on a reduced TE through the use of a custom designed spectral-spatial selective excitation pulse. A segmentation bone mask is obtained through a k-mean algorithm and compared with a similar mask calculated on reference in-phase and out-of-phase images. The suggested method shows an improvement in the false positive reduction in the bowel area compared to the reference bone mask and is eligible to produce good Digitally Reconstructed Radiography.

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