Quantification of neonatal abdominal adiposity using MRI has been described in details elsewhere (27 (link)). Briefly, non-sedated, fed, and swaddled neonates [mean ± SD age = 10 ± 3 days] who were 5-10 minutes into their sleep were placed in an immobilization bag in supine position within an adult head coil and had their abdomens scanned. T1-weighted water-suppressed axial fast spin echo sequences were acquired (GE Signa HDxt 1.5 TMR scanner, Wisconsin, USA). Superficial subcutaneous adipose tissue (sSAT) has a clear anatomical outline following the contours of the abdominal image slices. Deep subcutaneous adipose tissue (dSAT) is distinctly separated from sSAT by a fascial plane and is located on the left and right posterior aspect of abdomen. Finally, internal adipose tissue (IAT) is defined as the internal fat contained within the abdominal region (Supplemental Figure 2 ) and includes intraperitoneal, retroperitoneal, inter-muscular, as well as para-vertebral and intra-spinal fat. IAT in our study is equivalent to visceral fat in other (adult) studies.
Signa hdxt 1.5 tmr scanner
Manufactured by GE Healthcare
Sourced in United States
The Signa HDxt 1.5 TMR scanner is a magnetic resonance imaging (MRI) system developed by GE Healthcare. It is designed to produce high-quality diagnostic images of the human body. The scanner operates at a magnetic field strength of 1.5 Tesla and utilizes a superconducting magnet technology.
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Lab products found in correlation
2 protocols using signa hdxt 1.5 tmr scanner
1
Quantifying Neonatal Abdominal Adiposity
2
Glioma Radiomics Characterization Using MRI
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Patients with confirmed histopathological diagnosis of low-and high-grade gliomas from 2012 to 2020 were included in the study. All the images were acquired using a Signa HDxt 1.5 T MR scanner (GE Healthcare, Milwaukee, USA). A total of 81 cases were included (23 low grade and 58 high grade) -Table 1. Image acquisition parameters for the MRI sequences were given in Table 2. ADC maps were preprocessed from the diffusion weighted imaging (DWI) in the GE Console. The radiomic features were extracted from axial T2, ADC map, axial T2 FLAIR, and axial T1 post-contrast sequences. Post-contrast (C) T1-weighted axial images were obtained after the injection of 0.1-0.2 mmol/kg of MultiHance (Gadobenate dimeglumine). T1 Table 1: Showing demographic and clinical characteristics of subjects of Groups A and B T2 Table 2: Image acquisition parameters for MRI sequences for Groups A and B
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