FDA clears Siemens open-bore CT

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The FDA has cleared Siemens Healthcare Somatom Definition AS Open, a CT system designed to cover the needs of diagnostic radiology and radiation therapy. The Definition AS Open enables exact contouring for radiation therapy planning while minimizing exposure to the patient, according to Erlangen, Germany-based Siemens.

The scanner is upgradeable onsite from 20 to 64 slices, and balances image quality and dose with a bore diameter of up to 80 cm. In addition to the regular field-of-view (FoV) of 50 cm and the extended FoV of 80 cm, it includes a High-Definition FoV of 65 cm for treatment planning.

The multi-purpose treatment table with a bariatric top ensures reproducibility of patient positioning up to 676 pounds, with a deflection of less than 2 mm. The new ReferenceFix function aligns the relation between the different coordinate systems of the CT system and the linear accelerator.

In addition, an accurate rendering of a moving tumor is achieved with an open interface, compatible with all respiratory gating hardware vendors. The Somatom Definition AS Open has a footprint of 200 square feet and offers Complete Dose Protection, a portfolio of dose-saving features that enables users to manage dosage in every CT examination.