MRI examinations were performed using a 1.5-T (Intera, Philips Healthcare, Best, Netherlands; and Magnetom Amira, Siemens, Germany) or 3.0-T scanner (Achieva, Ingenia, or Elition, Philips Healthcare; and Vida, Siemens) with an 8- or 32-channel head coil. The MRI parameters for the 3D gradient echo sequence were as follows: field of view (FOV), 240 × 240 mm2; acquisition matrix, 240 × 240; slice thickness, 1 mm; number of excitations, 1; repetition time (TR), 8–10.6 ms; echo time (TE), 3.7–5.7 ms; and flip angle, 8°. The MRI parameters for the 3D turbo spin-echo sequence with the black blood technique were as follows: FOV, 240 × 240 mm2; acquisition matrix, 240 × 240; slice thickness, 1 mm; number of excitations, 1; TR, 500 ms; TE, 30 ms; and flip angle, 90°. For contrast enhancement, gadobutrol (Gadovist®, Bayer Schering Pharma AG, Berlin, Germany; 0.1 mmol/kg) was injected intravenously.
Magnetom amira
Manufactured by Siemens
Sourced in Germany
The MAGNETOM Amira is a magnetic resonance imaging (MRI) system developed by Siemens. It is designed to provide high-quality imaging capabilities for a wide range of clinical applications. The MAGNETOM Amira utilizes advanced technology to generate detailed images of the human body, enabling healthcare professionals to diagnose and monitor various medical conditions.
Automatically generated - may contain errors
4 protocols using magnetom amira
1
Multimodal Brain Imaging Protocol
2
Morbidly Adherent Placentation Diagnosis
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Morbidly adherent placentation was diagnosed by ultrasonography (US) (GE Electric Medical Systems, Milwaukee, Wisconsin, USA) and also by magnetic resonance imaging (MRI) with 1.5 T MAGNETOM Amira (Siemens Healthineers, Los Angeles, CA, USA) during 24 to 34 weeks of gestation.27 (link) The diameter of the abdominal aorta was measured by MRI. The ultrasound diagnostic criteria considered were as described by Cali et al,28 (link),29 (link) which include (a) clear space: loss or irregularity of echolucent area located between uterus and placenta; (b) bladder line: thinning or interruption of the hyperechoic interface between anterior uterine serosa and bladder posterior wall; (c) placental lacunae with the turbulent high velocity flow (>15 cm/s), vascular lakes with turbulent flow, increased vascular pattern of the uterine–bladder interface with abnormal vessels linking the placenta to the bladder, and markedly dilated vessels over the peripheral subplacental region. The MRI diagnostic criteria considered for the study included abnormal uterine bulging, dark intraplacental bands on T2-weighted imaging, heterogeneous signal intensity within the placenta, disorganized vasculature of placenta, and disruption of the uteroplacental zone.
3
Radiographic Evaluation of ADVS Implants
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All images were taken while the goats were under general anesthesia. Immediate postoperative anteroposterior and lateral radiographs (QDR-2000; Hologic, Waltham, MA, USA.) were taken for inspecting the position of the ADVS. Computed tomography (CT) (GE Medical Systems, Milwaukee, Wisconsin) images with the slice thickness of 0.625 mm were obtained to observe the implant in detail by using 3D reconstruction model. Magnetic resonance imaging (MRI) of 1.5 T (MAGNETOM Amira, Siemens, Germany) was taken to make sure there was no compression to the spinal cord.
4
Standardized Knee MRI Protocol
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The images were acquired with a 1.5 T MRI device (MagnetomAmira, Siemens Medical Systems, Forcheim, Germany) using lower extremity coils. The standard knee MRI protocol was implemented in all the patients, and IV contrast agent was not administered.
Protocol: The MRI protocol included axial proton densityweighted, sagittal fat-suppressed T2-weighted, sagittal T1weighted, and coronal and sagittal proton density-weighted sequences parallel to the ACL plane.
Protocol: The MRI protocol included axial proton densityweighted, sagittal fat-suppressed T2-weighted, sagittal T1weighted, and coronal and sagittal proton density-weighted sequences parallel to the ACL plane.
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