主要目的：将标准空间图像（BN_Altas_246_2mm）配准到个体空间图像然后做纤维追踪。
在配准的过程中，使用了ANTs配准和FSL(fnirt +flirt)配准，最后采纳了配准效果更好的FSL配准方法。
问题：在纤维追踪的过程中，给出警告：显示图像可能配准不好，详细内容贴在了下面，想问一下这个配准效果怎么样，如果效果不好的话如何能够改善配准效果。
(ants_env) siying@DESKTOP-QJLSANB:~/VM/HC_001_DTI$ tck2connectome -symmetric -scale_invnodevol tck_iFOD2.tck MNI_diff.nii.gz connectome_sift2_volnorm.csv -tck_weights_in tck_iFOD2_sift2.txt -force
tck2connectome: [WARNING] existing output files will be overwritten
tck2connectome: [WARNING] qform and sform are inconsistent in NIfTI image “MNI_diff.nii.gz” - using sform
tck2connectome: [100%] uncompressing image “MNI_diff.nii.gz”
tck2connectome: [100%] Constructing connectome
tck2connectome: [WARNING] The following nodes do not have any streamlines assigned:
tck2connectome: [WARNING] 19, 21, 27, 29, 31, 33, 35, 37, 39, 43, 45, 51, 53, 61, 63, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 155, 157, 159, 165, 167, 169, 171, 173, 189, 190, 191, 193, 194, 195, 197, 199, 200, 201, 203, 204, 205, 206, 207, 209, 213
tck2connectome: [WARNING] (This may indicate a poor registration)
配准后的图像与b0图像叠加后效果图如下所示：
原始b0图像如下所示：
