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Acuson x700

Manufactured by Siemens
Sourced in Germany

The Acuson X700 is a general-purpose ultrasound system designed for a wide range of clinical applications. It features a compact and ergonomic design, providing mobility and ease of use for healthcare professionals.

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9 protocols using acuson x700

1

Ultrasound-Guided Liver Biopsies: Detailed Protocol

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All percutaneous biopsies were performed under ultrasound guidance by a single interventional radiologist using an Acuson X700 (Siemens, Erlangen, Germany). For each patient, three intercostal biopsies of the right lobe were performed using an 18G Quick-Core® Biopsy Needle (William Cook Europe ApS, Bjaeverskov, Denmark) [36 (link)]. One patient with an increased risk of bleeding was treated by transjugular liver biopsy (Liver Access and Biopsy Needle Set, LABS-200-J, 19G; William Cook Europe ApS, Bjaeverskov, Denmark) according to [37 (link)]. Biopsy samples with a minimum length of 2.0 cm were obtained and directly conserved in 4% formalin.
Histopathological analyses were performed by a single pathologist with high expertise (more than 20 years) in liver pathology. The modified Scheuer classification [38 (link),39 (link)] was used for staging fibrosis and inflammation.
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2

Percutaneous Ultrasound-Guided Liver Biopsy

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Percutaneous intercostal ultrasound guided liver biopsies were performed (Acuson-X700, Siemens Erlangen, Germany) with at least three samples of the right lobe using a 18G Quick-Core® Biopsy Needle (William Cook Europe, Bjaeverskov, Denmark) and a 17ga Co-Axial introducer Needle (Argon Medical Devices, Athens, USA). Biopsy samples with a minimum length of 2.0 cm were obtained and directly conserved in 4% Formalin. Because of increased risk of bleeding due to dual thrombocyte anti-coagulation at time of biopsy one patient was biopsied by sheath-mediated (8F) transjugular liver biopsy set (Liver Access and Biopys Needle Set, LABS-200-J, 19G; William Cook Europe). No complications according to Society of Interventional Radiology guidelines were detected in all patients [28 (link)].
Histopathological findings were reported and classified according to the modified Scheuer-classification for staging fibrosis and inflammation [29 (link), 30 (link)]. Aspartate aminotransferase (AST)-to-platelet ratio index (APRI) and fibrosis-4 score (FIB-4) were calculated as serological markers of fibrosis over the study period [31 (link)–33 (link)]. In addition, within the scope of screening and clinical observation magnetic-resonance imaging and clinical ultrasound were performed.
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3

Comprehensive Cardiovascular Diagnostic Evaluation

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To verify the CHD diagnosis, the following tests were performed: 12-lead ECG, echocardiography (EchoCG), 24-h Holter ECG monitoring, exercise stress test and coronary angiography, if required. Carotid artery ultrasound scans were performed at baseline examination and after 3 months with a SIEMENS Acuson X700. The following blood lipid spectrum parameters were studied: total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG), very low-density lipoprotein cholesterol (VLDL-C), high-sensitive C-reactive protein (hsCRP), on a Daytona autoanalyzer (Randox, Ireland). The level of PCSK9 in the blood was measured with the enzyme-linked immunoassay, using a commercially available kit: Human Proprotein Convertase 9/PCSK9 ELISA Kit (MULTI SCIENCE, China).
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4

Standardized Carotid Ultrasound Imaging Protocol

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Bilateral carotid artery B-mode ultrasound imaging was performed following a standardized protocol, as described previously [14 (link), 15 (link)]. Acuson X300 and Acuson X700 (Siemens) ultrasound systems equipped with a linear transducer (frequency range 5–10 MHz) were used. Carotid intima-media thickness (IMT) was measured offline by semiautomatic software by the same experienced researcher (A.J.A.). The plaque was visualized using B-mode and colour Doppler examinations in both longitudinal and transverse planes to evaluate the presence of circumferential asymmetry. Carotid (bulb, internal or common carotid) plaque was defined as focal wall thickening encroaching into the arterial lumen by at least 50% of the surrounding IMT value or with a thickness of at least 1.5 mm measured from the media adventitia interphase to the intima-lumen surface [25 (link)]. The mean and the mean-maximum of all the carotid territories were recorded, as well as the maximum height of the carotid plaque. When plaque was present, the maximum IMT equalled the highest plaque height.
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5

Carotid Artery Thickness Assessment

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In order to assess the thickness of the common carotid artery, the IMT was measured with the high-frequency ultrasound ACUSON X700 device (Siemens Healthcare GmbH, Erlangen, Germany). Participants were placed in a supine position for the measurements. The IMT was determined during the peak systole according to a parallel ECG reading. Images were taken, centered approximately 10 mm below the carotid artery bulb.
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6

Comparative Evaluation of Ultrasound Machines

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Three different ultrasound machines were used in this study: Ultrasound machine 1: GE, LOGIQ E9 with convex probe transducer C1-6 (1.5-6 MHz); ultrasound machine 2: Siemens, ACUSON X700 (Model 10 658 844) with convex probe transducer Acuson (1-4.5 MHz); ultrasound machine 3: Toshiba, Aplio XG (SSA-790A) with convex probe transducer PVT-375BT (3.5 MHz).
Each patient was examined by 5 different physicians immediately after each other, with 2 different ultrasound machines being used for these 5 examinations. Assignment to the ultrasound machine was done randomly, always using the next machine available.
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7

Echocardiographic Evaluation of PPCI Outcomes

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Echocardiography study was performed with the patient either supine and/or in the left lateral decubitus position, using a digital ultrasonic device system (SIEMENS ACUSON X700) within 24 h after the PPCI.
We analyzed left ventricle ejection fraction (LVEF) (by 2D biplane method), RV FAC, TAPSE, PW doppler velocities (E vel, A vel, DT and E/A), TDI velocities (E′, A′, E/E′), right atrial (RA) area, IVC diameter and collapsibility and pulmonary artery systolic pressure (PASP) in all patients [5 ].
Three months clinical follow-up was obtained and occurrence of ventricular arrhythmia and major adverse cardiovascular events [MACE] (death, cardiogenic shock, MI and stroke) was recorded.
We divided our studied patients to two groups: MACE patients and non-MACE patients; we compared between these groups according to demographic data, risk factors and echocardiographic parameters.
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8

Phantom Imaging for STFB Detection

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Each phantom was imaged by a final year pre-registration learner (following appropriate education and training in the relevant modalities) under the guidance of appropriately qualified and experienced academic radiographers. For projection radiography a Siemens Multix Fusion tube and x-ray table were used together with an Agfa XD+14 image receptor. Dorso-posterior (DP) and lateral projections were performed using fine focus, a 100 cm source to image receptor distance, 55 kVp and 1.5 mAs. Fig. 1 shows a DP projection of a phantom containing a glass foreign body. As it was intended to evaluate the relative ability of ultrasound compared with projection radiography in detecting the presence of STFBs, site entry (wound) markers were not utilised for the projection radiographs. For ultrasound imaging, a Siemens Acuson X700 with a 10.7 MHz linear probe was combined with the musculoskeletal pre-settings and the phantoms were imaged at a frame rate of 32 frames per second. Depth was adjusted manually. Images were downloaded from each imaging system, with the ultrasound cine images being converted to MP4 files. Fig. 2 shows a still image from the ultrasound cine showing the phantom with the thorn foreign body in situ.
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9

Ultrasonographic Evaluation of Rectus Femoris and Vastus Intermedius Muscle Thickness

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An US evaluation (Acuson X700, Siemens) of the thickness of rectus femoris (T RF ) and T RF plus thickness of vastus intermedius (T RF + VI ) muscles was performed in all patients at day 1 (within the 36 h of intubation). As described previously, we used a high frequency linear probe (frequency: 10.7 MHz, gain: 55 dB, depth was adjusted to view both muscle layers and femur), where the transducer was placed perpendicular to the long axis of the muscle at 3/5 of the distance between the anterior superior iliac spine and the superior border of patella for the T RF and T RF + VI [
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