All patients were scanned on a high-end Dual-Source CT-scanner (Definition Force, Siemens Healthineers, Erlangen, Germany). Acquisition parameters were as follows: dual-energy acquisition with 80 kV/Sn150 kV, reference mAs 118/59, pitch 0.7. Images were reconstructed on a 512 × 512 matrix with 3 mm slice thickness using iterative reconstruction (ADMIRE 2, Siemens Healthineers, Erlangen, Germany).
Admire 2
Manufactured by Siemens
Sourced in Germany
ADMIRE 2 is a laboratory equipment product developed by Siemens. It is designed to perform advanced measurements and data analysis tasks. The core function of ADMIRE 2 is to provide reliable and accurate measurement capabilities for various applications in the laboratory setting.
Automatically generated - may contain errors
2 protocols using admire 2
1
Dual-Energy CT Imaging Protocol
2
CT Imaging of Arthroplasty Migration
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CT examinations were performed on 2 CT scanners (GE Revolution, GE Healthcare, Chicago, USA and Siemens SOMATOM Force, Siemens Healthcare GmbH, Erlangen, Germany). Model-based iterative reconstruction algorithms (ADMIRE 2, Siemens and ASiRV50, GE Healthcare) were used, with metal artefact reduction (MAR). The CT protocol parameters were tube voltage 120 kV, tube current 100 mAs, slice thickness 0.625 mm, rotation time 0.5 seconds, pitch 1.0, and field-of-view 200 × 200 mm. These parameters, scan length, CT dose index volume (CTDIvol), and dose length product (DLP) were matched on the CT scanners at a total dose of 6.34 mGy. EDs were estimated by multiplying DLP by the knee conversion factor 0.0004 mSv/(mGy × cm) (17 (link)).
The cadaver was repositioned between each exposure. Scans were analyzed with a commercially available CT migration analysis software (generic name CTRSA), CTMA software (Sectra AB, Linköping, Sweden) (12 (link)). The following steps were performed, as previously described for hip and shoulder arthroplasty (8 (link),9 (link)):
The cadaver was repositioned between each exposure. Scans were analyzed with a commercially available CT migration analysis software (generic name CTRSA), CTMA software (Sectra AB, Linköping, Sweden) (12 (link)). The following steps were performed, as previously described for hip and shoulder arthroplasty (8 (link),9 (link)):
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