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Abstract #2301

Clinical evaluation of ZTE skull segmentation

Gaspar Delso 1 , Mohammad Mehdi Khalighi 1 , Florian Wiesinger 2 , and Patrick Veit-Haibach 3

1 GE Healthcare, Waukesha, WI, United States, 2 GE Global Research, Germany, 3 University Hospital of Zurich, Switzerland

One of the main challenges of attenuation correction in hybrid PET/MR scanners is the correct identification of bone tissue. A recent development has been the publication of a new bone identification technique, based on 3D radial zero echo time (ZTE) imaging. This sequence provides high-resolution, isotropic images, suitable for bone segmentation, without the need of preparation pulses or multiple echoes, making it a very time-efficient acquisition. The goal of the present study is to compare ZTE bone images of clinical patients with the corresponding CT datasets, obtained using a tri-modality scanner setup.

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