表 1 腰椎 MRI 序列参数表 Table 1 MRI sequence parameters of lumbar spine 序列 T1WI T2WI 脂肪抑制-T2WI 方法 重复时间 回波时间 翻转角度 激励次数 回波链长 层厚 2D-快速自旋回波序列 581 ms 2D-快速自旋回波序列 3 500 ms 2D-快速自旋回波-脂肪抑制序列 3 540 ms 12 ms 75 ms 79 ms 150° 150...
This segmentation process is assisted by specialized image analysis software, which is used to calculate the articular cartilage morphometric parameters [12]. However, regardless of the expertise of the trained readers or the capabilities of the segmentation software, the manual or semi-automatic ...
However, all the spinal cord MRIs included axial and sagittal images of the spinal cord obtained by T1 with or without gadolinium enhancement and T2 sequences. The characteristics of the neuroimaging were assessed independently by two radiologists who were blinded to the clinical information of the ...
BMC Cancer (2022) 22:420 Page 4 of 11 Table 1 Parameters of the MRI sequences Scanner Sequence b value (s/mm2) TR (ms) TE (ms) image resolution Slice Thickness (mm) (mm) Slice Gap (mm) Signa 3.0-T Signa HDX 3.0-T T2WI CE-T1WI DWI T2WI CE-T1WI DWI –– 0,800 ––...
Table 1 Imaging parameters of the MPRAGE sequence. Full size table Figure 1: Flow chart of registration and averaging procedure. Prior to the raw data acquisition by using prospective motion correction the field of view is repositioned per k-space line excitation to remediate subject motion. Afte...
MRI artifacts caused by the SYNCHRONY system are asymmetric with varying shape, depending on the sequence. The phantom artefacts are similar to those in CI users. Considering the observed asymmetry, the hypothesis of varying implantation locations resulting in varying positions of the signal void area...
In addition, the protocol included a transaxial 3D T1-weighted spoiled gradient-echo sequence with a 1-mm slice thickness covering the pelvic region to facilitate the identification of nodal structures. MRI parameters are shown in Table 2. Table 2 Protocol parameters for the preoperative MRI ...
9/14/2023The Contrasatinator tool is available to provide pulse sequence parameter suggestions to optimize contrast between two tissues. 9/13/2023All plotting now uses Chart.js. 8/23/202310 years later, the look and feel of the site has been updated! Stay tuned for more updates. ...
DCE scanning is performed after intravenous pumping administration of gadolinium (0.1 mmol/kg) using VIBE sequence. (pre-contrast in the axial and sagittal planes; post-contrast at 30 s, 60 s and 120 s in the sagittal and 180 s in the axial plane). Table 1 Imaging protocol for patients....
More details on the technical parameters of the MRI sequences are shown in Supplementary Table S1. PI-RADS assignment After exclusion of PI-RADS 1, 2 and 5, imaging findings of the remaining patients were re-scored according the PI-RADS v2.1 by two radiologists, respectively with 10 and 8...