A 3T Philips Achieva dStream whole-body scanner measures lower limb muscle mass (total for both legs) using quantitative 3-point Dixon imaging[12 (link)]. Bony landmarks are used in the lower and upper sections of the leg to define the muscle compartments to be acquired and measured. The water signal arising from lean muscle tissue (separated from lipid signals arising from bone and subcutaneous fat) is isolated, and the lean muscle volume calculated. Proton MR spectroscopy measures the concentrations of creatine and water in the soleus muscle and phosphorus MR spectroscopy measures phosphocreatine, inorganic phosphate and ATP in the soleus muscle and facilitates the inference of muscle pH. The T2 relaxation time of the muscle was evaluated using a multi-echo spin echo sequence at mid-thigh and mid-calf, measuring the effect of muscle inflammation, modelling for the possible presence of fat in the muscle[12 (link)].
Achieva dstream whole body scanner
Manufactured by Philips
The Achieva dStream whole-body scanner is a diagnostic imaging device manufactured by Philips. It is designed to capture high-quality images of the entire human body for medical purposes. The core function of the Achieva dStream is to provide detailed visualizations of the body's internal structures, enabling healthcare professionals to analyze and diagnose various medical conditions.
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Lab products found in correlation
2 protocols using achieva dstream whole body scanner
1
Comprehensive Muscle Assessment using MRI
2
PET and Cardiac MRI Protocol for Myocardial Imaging
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PET. 11 C-acetate was synthesized according to the method of Pike et al. (13) , with minor in-house modifications. All subjects were instructed to fast for at least 4 h before undergoing PET, except for water and medicine prescribed for daily intake. Using a Biograph TruePoint TrueV 64 PET/CT scanner (Siemens GMBH), a low-dose CT scan (120 kV, 30 mAs, 4-mm slice thickness) was obtained, followed by a 27-min list-mode emission scan that began simultaneously with automated bolus injection of 407 6 30 MBq of 11 C-acetate (1 mLÁs 21 ) followed by a 35-mL saline flush (2.0 mLÁs 21 ). The TrueX algorithm reconstructed the data into a dynamic series consisting of 29 time frames, using a method similar to one previously described (14) .
Cardiac MRI (CMR). CMR was performed using a 1.5-T Achieva dStream whole-body scanner (Philips) and a 32-channel coil. A survey scan was followed by an electrocardiogram-triggered temporally resolved cine using balanced steady-state free precession during a breathhold. The images were acquired with an 8-mm slice thickness, no slice gap, a 3.1-ms/1.55-ms repetition time/echo time, a 60°flip angle, a 350 • 350 mm field of view, a 352 • 352 acquisition matrix, and 30 phases within a single cardiac cycle. A stack of 16-18 LV short-axis slices was acquired covering the entire left ventricle.
Cardiac MRI (CMR). CMR was performed using a 1.5-T Achieva dStream whole-body scanner (Philips) and a 32-channel coil. A survey scan was followed by an electrocardiogram-triggered temporally resolved cine using balanced steady-state free precession during a breathhold. The images were acquired with an 8-mm slice thickness, no slice gap, a 3.1-ms/1.55-ms repetition time/echo time, a 60°flip angle, a 350 • 350 mm field of view, a 352 • 352 acquisition matrix, and 30 phases within a single cardiac cycle. A stack of 16-18 LV short-axis slices was acquired covering the entire left ventricle.
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