All CMR scans were performed on 1.5T scanners (Siemens, Erlangen, Germany; and GE Healthcare, Chicago, IL) with a dedicated phased array cardiac receiver coil. The CMR scans included retrospective ECG‐gated steady‐state free precession cine imaging with breath‐holding, in standard 2‐chamber and 4‐chamber long‐axis views, for the assessment of ventricular and atrial function. All patients were in sinus rhythm during the CMR scan.
1.5t scanners
Manufactured by Siemens
Sourced in Germany
The 1.5T scanners are medical imaging devices designed for magnetic resonance imaging (MRI) procedures. These scanners utilize a 1.5 Tesla (T) magnetic field strength to generate high-quality images of the body's internal structures. The core function of the 1.5T scanners is to capture detailed anatomical information to assist healthcare professionals in diagnosis and treatment planning.
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Lab products found in correlation
3 protocols using 1.5t scanners
1
Cardiac MRI Assessment of Ventricular Function
2
Knee Cartilage Volume Assessment by MRI
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Cartilage volume was assessed by MRI, which was performed on 1.5 T scanners (Siemens, Erlangen, Germany; General Electric, Milwaukee, WI, USA) using a standard knee coil, and the sequence acquisitions were as previously described [32 (link)]. The cartilage volume was measured by two experienced readers trained by musculoskeletal radiologists using the computer program Cartiscope™ (ArthroLab, Montreal, QC, Canada) as previously described [27 (link), 28 (link)]. The change (percentage) in knee cartilage volume was obtained by subtracting the follow-up volume from the initial (baseline) volume divided by the initial (baseline) volume multiplied by 100. The percent coefficient of variation (CV%) is excellent as described [27 (link)].
3
Pediatric MRI Data Protocol
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Images taken from the NIH Pediatric MRI Data Repository were acquired using General Electric or Siemens 1.5 T scanners located at six different pediatric study centers as part of the original study. Images were collected using a 3D T1-weighted spoiled gradient recalled (SPGR) echo sequence (TR (ms) = 22–25, TE (ms) = 10–11, FOV (mm) = 256, 1 mm slice thickness, voxel size =1 mm isotropic). For more detail, see Evans et al., 2015 (link) or www.pediatricmri.nih.gov .
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