These are dissection microscope images of a bisected rat kidney vascular cast. The white material is the vascular cast. The tissue has been rendered optically transparent by a chemical clearing process thereby enabling direct visualization of the vascular cast.
This is a 3D rendering of a rat kidney vascular cast with vessels color coded by diameter. To generate this image we created a renal vascular cast by infusion of casting material (microfil). We then generated this 3D, vascular tree using microCT imaging.