For MRI, the formalin-fixed specimen was placed inside a cylindrical plastic container filled with the original 10% formalin solution. Scanning was performed using a 7-T high-field Magnetom clinical MR (magnetic resonance) system with a 600-mm magnet bore and equipped with an SC72 shielded gradient set with a maximum strength of 70 mT/m (Siemens, Berlin, Germany). The container was placed horizontally inside a 32-channel human head coil (Siemens). For imaging, a 3D magnetization-prepared spiral acquisition gradient echo (MP-SAGE) MR sequence with 3000 ms repetition time, 3.4 ms echo time, 7° flip angle, 37 frames averaged, 150 × 111 × 150 mm field of view, 536 × 396 × 536 px matrix size, 280 μm isotropic voxel resolution, and about 16 h 59 min acquisition time was used. The selected field of view comprised a region of interest extending from the posterior mantle edge to about the middle of the arms and thus covered all the internal structures relevant for a cirrate species description [3 (link)]. The acquired data were reconstructed using the software syngo MR B17 (Siemens). For further image processing, the original 16-bit NIfTI file was transformed into an 8-bit TIFF image stack, zero-filled to 140-μm isotropic voxel resolution, and finally rotated to a dorsoventral orientation using the software Fiji 1.52v [17 (link)].
32 channel human head coil
Manufactured by Siemens
Sourced in Germany
The 32-channel human head coil is a specialized piece of lab equipment designed for magnetic resonance imaging (MRI) applications. It is used to acquire high-quality images of the human head and brain, enabling researchers and clinicians to study brain structure and function. The coil contains 32 individual receiver channels, allowing for enhanced signal-to-noise ratio and improved spatial resolution in MRI scans.
Automatically generated - may contain errors
Lab products found in correlation
2 protocols using 32 channel human head coil
1
High-Resolution MRI Imaging of Formalin-Fixed Specimens
2
Multi-modal Neuroimaging in Humans and Dogs
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
We acquired all MRI data with a 3T Siemens Skyra MR-system (Siemens Medical, Erlangen, Germany) and a 15-channel coil (initially designed for measurements of the human knee) for data acquisition in dogs and a 32-channel human head coil for data acquisition in humans. Functional scans of dogs used a 2fold multiband (MB) accelerated echo planar imaging (EPI) sequence including the following parameters: voxel size = 1.5 x 1.5 x 2 mm 3 , repetition time (TR) / echo time (TE) = 1000/38 ms, field of view (FoV) = 144 × 144 × 58 mm 3 , flip angle = 61°, 20% gap and 24 axial slices covering the whole brain (interleaved acquisition, descending order). Structural scans had a voxel size of 0.7 mm isotropic (TR/TE = 2100/3.13 ms, FoV = 230 × 230 × 165 mm 3 ) and were acquired in a separate scan session prior to functional data collection. Human functional scans were acquired using a 4-fold MB accelerated EPI sequence including the following parameters: voxel size = 2 mm isotropic, TR/TE = 1200/34 ms, FoV = 192 × 192 × 124.8 mm 3 , flip angle = 66°, 20% gap and 52 axial slices coplanar to the connecting line between anterior and posterior commissure (interleaved acquisition, ascending order). Additionally, we obtained field map scans to correct functional scans for magnetic field inhomogeneities using a double echo gradient echo sequence with the following parameters: voxel size = 1.72
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!