The IDEAL-IQ images were transferred to a GE Advantage Windows 4.6 workstation (GE Healthcare). Two radiologists with 5 and 8 years of experience in musculoskeletal system imaging read the films without knowledge of the clinical situations or grouping of the patients. The region of interest (ROI) was manually selected by the same radiologist. The standard MRI sequences were interpreted before IDEAL-IQ. The fat fraction (FF) was automatically generated by the viewer function on the workstation. The ROI on the FF sequence was selected according to conventional MRI sequences, and the ROIs were manually identified on the iliac side and sacral side with the same area (three regions) and same size on both SIJs. The FF of the iliac side was recorded as Fi, while that of the sacral side was recorded as Fs. These ROIs were adjacent to cortical bone and had a mean area of 27 mm2 (range, 15–30 mm2). The data on three consecutive sections were obtained and then averaged as the final result for subsequent analyses.
Ge advantage windows 4
Manufactured by GE Healthcare
Sourced in United States
GE Advantage Windows 4.6 is a software platform designed to provide a user interface for GE Healthcare's medical imaging equipment. It offers a graphical user interface and tools for image acquisition, processing, and review. The core function of GE Advantage Windows 4.6 is to enable the operation and management of medical imaging systems.
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Lab products found in correlation
2 protocols using ge advantage windows 4
1
Quantitative Assessment of Sacroiliac Joint Fat Fraction
2
Tumor Heterogeneity Assessment Using CT Imaging
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The images were jointly analyzed by two radiologists who had worked for 8 and 6 years on the GE Advantage Windows 4.6 workstation (General Electric Inc., Boston, MA, USA). The largest slice of the tumor was selected for the measurement of CTH, and the circular or oval region of interest (ROI) was used as large as possible (7 (link), 12 (link)). The histogram analysis software was used to depict the CT value distribution curve in ROI. The X-axis represents the distribution range of CT value in ROI, and the Y-axis represents the frequency of each CT value. The software automatically obtained the percentage of negative pixels in ROI. In the present study, AVmean and AVmin were measured by a 4-point method, that is, the maximum transverse diameter and the longitudinal diameter were made on the maximum axial plane of the tumor to obtain the intersection point, the midpoint from the intersection point to the edge of the tumor was taken as the measurement point, and the ROI was 19 ~ 24 mm² (11 (link)) (Figures 2 5
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