FIG 1.

Geometrically unbiased, high-resolution representation of the aVP segment anatomy by 3D-T2-STIR-ZOOMit (healthy control No. 9001).The left panel shows curved reconstructions along the true long axis of the right and left aVPs. The thin arrow points to the porus opticus. Coronal-oblique reconstruction images corresponding to the iOrb (A, from the eye bulb to the optic canal), iCanal (B, in the optic canal), and iCran (C, from the optic canal to the chiasm) segments and OC (D) and OT (E) segments highlighted in white circles are presented. By comparison, the right panel (F–J, different healthy volunteer) shows corresponding coronal-oblique images obtained with a 3D-ZOOMit standard sequence without the STIR preparation pulse. Note substantial contrast resolution gain with 3D-T2-STIR-ZOOMit, particularly at interfaces between different signal tissues and between the OT and adjacent hypothalamus (thin arrows in E).