(2)腰椎MRI检查使用德国SIEMENS公司Avanto 1.5T超导MRI成像仪,梯度场强45 mT/m,切换率200 mT/(m·s),采用8通道体部相控阵线圈,包括全部腰椎,进行常规快速自旋回波矢状面T1WI、T2WI、脂肪抑制-T2WI。各序列成像参数见表1。 表1 腰椎MRI序列参数表Table 1 MRI sequence parameters of lumbar spine序列 方法 重复时...
Usefulness of preoperative breast magnetic resonance imaging with a dedicated axillary sequence for the detection of axillary lymph node metastasis in patients with early ductal breast cancer. Radiol Med. 2019;124:1220–8. Article PubMed Google Scholar Guvenc I, Whitman GJ, Liu P, Yalniz C, Ma...
There was a strong correlation in nodule size between CT and MRI sequences (HASTE: ρ = 0.80, p = 0.003; VIBE: ρ = 0.77, p < 0.001; StarVIBE: ρ = 0.78, p < 0.001). Mean image quality was rated as good to excellent for CT and MRI sequences. ...
(2) 腰椎 MRI 检查使用德国 SIEMENS 公司 Avanto 1.5T 超导 MRI 成像仪 , 梯度场强 45 mT/m , 切换率 200 mT/(m·s),采用8通道体部相控阵线圈,包括全部 腰椎,进行常规快速自旋回波矢状面T1WI,T2WI,脂肪 抑制-T2WI.各序列成像参数见表1. 表 1 腰椎 MRI 序列参数表 Table 1 MRI sequence parameters of...
(T2w). This is because different vendors provide distinct imaging sequences even though the modality might be the same (T1w). Therefore, checking cross-vendor compliance is non-trivial. We observe that scans from Siemens have consistent acquisition parameters in contrast to scans from Philips and...
The potency of the MLP model for ki-67 prediction based on single and combined sequences was assessed using the ROC curve analysis (Fig. 6). The DeLong’s test was used to analyze the improvement resulting from the combined model compared to the other single models (Table 3), with the ...
MRI was performed using the 1.5-T system (MAGNETOM Symphony; Siemens Healthcare, Erlangen, Germany). STIR of thigh muscles in the axial plane was conducted using the following parameters: repetition time: 6500 ms; echo time: 65 ms; inversion time: 190 ms; slice thickness: 8.0 mm; flip ang...
All patients were imaged using MAGNETOM-Avanto scanner (Siemens Healthcare, Erlangen, Germany) at 1.5 T with both endorectal coil and phase-array pelvic coil24. More details on the technical parameters of the MRI sequences are shown in Supplementary Table S1. PI-RADS assignment After exclusion...
Post-contrast dynamic imaging including up to 20-min delayed hepatobiliary phase was performed with fat suppressed 3D T1 GRE (Gradient Refocused Echo) VIBE (Volume Interpolated Breath-hold Examination) pulse sequences. Table 1. Protocol for gadoxetic acid-enhanced liver MRI (EOB-MRI) on 3T ...
A 3T clinical imaging protocol (Trio; Siemens Medical Solutions, Erlangen, Germany), with a body-matrix phased-array con, was used. This protocol is detailed in the following table: Slices andResolutionScan SequencePlaneTR/TE (ms)thickness(mm)time ...