Scan and Reconstruction

Improved Head Imaging

An automatic bone correction algorithm has been included in the standard image reconstruction. Using a new iterative technique, typical artifacts arising from the beam-hardening effect, e.g., Hounsfield bar, are minimized without any additional post-processing. This advanced algorithm allows for excellent images of the posterior fossa, but also improves head image quality in general. Bone correction is activated auto- matically for body region “Head”.

In order to optimize image quality versus radiation dose, scans in the body region “Head” are provided within a maximum scan field of 300 mm with respect to the iso-center. No recon job with a field of view exceeding those limits will be possible. Therefore, patient positioning has to be performed accurately to ensure a centered location of the skull.

Head image without correction.

Head image with cor- rections.

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Siemens Software version syngo CT 2005C Improved Head Imaging, Head image without correction Head image with cor- rections