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Somatom x cite

Manufactured by Siemens
Sourced in Germany

The Somatom X.cite is a computed tomography (CT) scanner developed by Siemens. It is designed to provide high-quality imaging for a variety of medical applications. The core function of the Somatom X.cite is to capture detailed cross-sectional images of the body using X-ray technology.

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6 protocols using somatom x cite

1

Multimodal CT Imaging Techniques

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In addition to the PCCT scanner (NAEOTOM Alpha; Siemens Healthineers, Forchheim, Germany), five EIDCT scanners were used, including three dual-energy CT (DECT) scanners (SOMATOM Drive, SOMATOM Force, and SOMATOM Definition Flash; Siemens Healthineers, Forchheim, Germany) and two single-source CT scanners (SOMATOM Definition AS and SOMATOM X.cite; Siemens Healthineers, Forchheim, Germany).
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2

CT Imaging Protocol for Acute Ischemic Stroke

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CT was performed on a range of scanners from different vendors including Siemens Somatom X.cite, Somatom Definition Flash, Somatom Definition AS+, and Somatom Definition Edge Plus (Siemens, Erlangen, Germany), as well as GE Revolution (General Electric, Boston, MA, USA) and Philips Brilliance iCT 256 (Philips, Amsterdam, The Netherlands). The three-phase CT clinical protocol consists of NCCT, an arterial phase measured with CTA and CTV after intravenous contrast agent injection. Due to the different scanner types and acute setting of AIS, the CTV was timed with a mean delay of 70 ± 28 s after the CTA. A fixed tube voltage of 120 kV for both the unenhanced and venous phases was used.
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3

Preoperative CT Evaluation for Aortic Surgery

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In addition to routine preoperative assessments, all patients underwent a CT scan (Siemens Somatom X.cite (Siemens Healthineers, Erlangen, Germany); 128 slices of 0.5 mm size) to screen for atherosclerotic disease and anatomical abnormalities in the aorta and major arterial branches. This was crucial for planning the CPB strategy, selecting the appropriate peripheral arterial cannulation site and ensuring safe aortic cross-clamping.
Furthermore, special attention was given to the detection of maximal CT distance from the posterior portion of AoV annulus (base of noncoronary cusp) to the skin level (Fig. 1). We perform that to estimate the expected deepness of AoV location. This distance was measured on transverse CT planes preoperatively.
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4

Evaluating Post-Extraction Bone Changes

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Blinded evaluation of bone volume and density from CBCT (Orthophos XG 3D, Sirona Dental Systems GmbH, Germany) images (at resolution 624x400 16bit grayscale, field 5 × 5.5 cm, 5.1 s exposure, 10 mA energy, dose: 159 mGy cm2) taken one day after extraction and after 4 months. The change in bone density in the area of extraction was the primary outcome measure. Analysis of CBCT images was performed with Galaxis (Sirona) and Somatom X.cite (Siemens Healthineers, Germany) program. Gray scale value (GSV) units were used.

Monitoring for potential side effects (bleeding, pain, swelling, trismus).

Pain during and after treatment on a scale of 0–10 (0‐no pain, 10‐intorellable pain).

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5

Porcine Leg Bone CT Imaging

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Ten mature (age > 2 years) porcine leg bones were used for this study. The cadaveric bones underwent computed tomography (CT) (SOMATOM X.cite, Siemens Healthcare GmbH, Eschborn, Germany) in a high quality of 0.5 mm slices.
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6

Dual-Energy CT Imaging of the Head

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A head CT imaging was performed using a single-source CT scanner (Somatom X.cite, Siemens Healthcare, Erlangen, Germany) in TwinSpiral dual-energy mode. Tube voltages were set to 80 and 150 kVp, the latter operated with tin (Sn) filtration, and with corresponding quality reference tube current-time products of 220 and 179 mAs, respectively, using automated tube current modulation (CAREDose4D) (Fig. 1). Further scanning parameters were as follows: slice acquisition, 2 × 0.6 × 64 mm by means of a z-flying focal spot; rotation time, 1.0 s; and pitch, 0.55. The mean volume CT dose index (CTDIvol) of the protocol was 43.7 ± 3.4 mGy.

Schematic mode of operation of a single-source TwinSpiral dual-energy CT: Two consecutive scans at a different energies (low and a high kV scan) are performed directly one after the other. From these two datasets, conventional mixed CT images (a), as well as dedicated reconstructions, such as color-coded iodine overlay images (b) and virtual non-contrast (VNC) images (c) can be postprocessed

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