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. 2019 Dec 3;10:5504. doi: 10.1038/s41467-019-13374-0

Fig. 2.

Fig. 2

Validation highlighting MIRACL’s registration and segmentation accuracy. a High fidelity of CLARITY registration to the Allen Regional Atlas (ARA). Left: Coronal view of an ARA Nissl histology slice. Center: CLARITY auto-fluorescence channel of a representative stroke mouse registered to the ARA. Right: The same auto-fluorescence channel with overlaid label outlines (R–L: right–left, S-I: superior–inferior). b Axial and coronal views of a Thy1 yellow fluorescence protein (YFP) imaging volume (green) registered to the ARA template (grayscale) and an axial view of another registered CLARITY dataset with (right) and without (left) ARA labels. c Coronal views of three Allen-registered in vivo MR images (a control mouse, a striatal stroke mouse, and a cortico-striatal stroke, respectively). All mice in this study were scanned 24 h after stroke. d Low root mean squared error (RMSE) between transformed manually placed landmarks on the native MRI and CLARITY imaging volumes and ARA manually placed landmarks. Center line of box plot represents the median, bounds represent the first and third quantiles, and whiskers represent the lowest and highest datum within 1.5× the interquartile range of the lower and upper quantiles. e Segmentation results for nuclei using propidium iodide (PI) stain. Coronal view of a PI stroke brain and its corresponding segmentation image (scale bar: 400 µm). Inset (right) shows a zoom-in view on cortex ipsilateral to the stroke with individually segmented cells shown in random colors overlaid on the original PI image (scale bar: 100 µm). f Segmentation results for layer-specific neurons using Thy1-YFP (YFP). Coronal view of a Thy1-YFP stroke brain and its segmentation image (scale bar: 400 µm). Insets (right) show zoom-in views on the cortex contralateral to the stroke (orange box) and cortex ipsilateral to the stroke (blue box) (scale bars: 50 µm). g Zoom-in on YFP results with segmentation overlaid on raw images, and 3D rendering of YFP raw and segmented neurons. h 3D rendering of an original YFP volume with a 5-µm isotropic resolution (left) and examples of voxelized segmentation results (where the segmentation images are summarized at lower resolutions in the Allen space) at 25 µm in two- and three-dimensions (scale bar: 600 µm).