All MRI studies were performed using a 3.0 T magnet (Signa Excite HD 3.0 T System, GE Medical Systems, Milwaukee, WI, USA) equipped with an eight-channel HD cardiac coil. The basic MRI protocol included the following sequences: a) two-dimensional (2D) axial T1WI fast spin-echo (FSE), b) 2D T2WI FSE, and c) breath-hold three-dimensional fat-suppressed gadolinium-enhanced DCE-MRI with ultra-fast spoiled gradient-echo (liver acquisition with volume acquisition [LAVA]).15 (link),24 (link) The parameters used in the MRI protocol are summarized in Table 2 . DCE-MRI scans were acquired after an intravenous bolus injection of 0.1 mmol/kg gadolinium-diethylenetriamine pentaacetic acid (Magnevist, Bayer Schering Pharma AG, Berlin, Germany) using an automatic power injector at a 4 mL/s flow rate followed by a flush with 30 mL of 0.9% sterile saline solution. The LAVA imaging delays for the early arterial phase, late arterial phase, parenchymal phase, and delayed phase were 15 seconds, 30 seconds, 60 seconds, and 90 seconds, respectively, after arrival of the contrast agent in the iliac artery.
Signa excite hd 3.0 t system
Manufactured by GE Healthcare
Sourced in United States
The Signa Excite HD 3.0 T System is a magnetic resonance imaging (MRI) system manufactured by GE Healthcare. It operates at a magnetic field strength of 3.0 Tesla and is designed for high-performance imaging applications.
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Lab products found in correlation
2 protocols using signa excite hd 3.0 t system
1
Comprehensive 3T MRI Protocol for Liver Imaging
2
Multimodal Imaging of Suspected Lesions
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All examinations were done using MSCT units. Among them 33 patients, 29 were evaluated with 64-slice spiral CT (LightSpeed VCT; GE Healthcare, Milwaukee, WI, USA) and the remaining 4 were examined with 16-slice CT (HiSpeed Advantage CT; GE Healthcare, Milwaukee, WI, USA). After plain CT scanning for the suspected region, a bolus of 60–80 mL of nonionic contrast medium (Ultravist 300, Bayer Schering Pharma, Berlin, Germany) was injected into an antecubital vein at a flow rate of 3.5–5.0 mL/s. Images were acquired with a slice thickness of 5.0–10.0 mm, and 1.25 mm thickness reconstruction imaging was obtained.
MRI examinations were done for 18 patients with the Signa Excite Xl Twin Speed 1.5 T system (8 cases) and Signa Excite HD 3.0 T system (10 cases) (GE Healthcare, Milwaukee, WI, USA) with an 8-channel torso-array coil and/or head coil. Post contrast-enhanced images were obtained after injection of gadopentetate dimeglumine (Gd) 0.2 mmol/kg (Magnevist; Schering, Berlin, Germany) into an antecubital vein at a rate of 1.5–3.0 mL/s.
All CT and MRI images were analyzed and interpreted by two experienced radiologists who were unaware of the pathological findings. Discrepancies in their interpretations were resolved by consensus.
MRI examinations were done for 18 patients with the Signa Excite Xl Twin Speed 1.5 T system (8 cases) and Signa Excite HD 3.0 T system (10 cases) (GE Healthcare, Milwaukee, WI, USA) with an 8-channel torso-array coil and/or head coil. Post contrast-enhanced images were obtained after injection of gadopentetate dimeglumine (Gd) 0.2 mmol/kg (Magnevist; Schering, Berlin, Germany) into an antecubital vein at a rate of 1.5–3.0 mL/s.
All CT and MRI images were analyzed and interpreted by two experienced radiologists who were unaware of the pathological findings. Discrepancies in their interpretations were resolved by consensus.
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