Early Achilles Enthesis Involvement in a Murine Model of Spondyloarthropathy: Morphological Imaging with Ultrashort Echo-Time Sequences and Ultrasmall Superparamagnetic Iron Oxide (USPIO) Particle Evaluation in Macrophagic Detection

Figure 3

(a) Sagittal in vivo 3D multiecho UTE images, at D3 (8 TE values: (A) 0.031, (B) 0.1, (C), 0.2, (D) 0.3, (E) 0.5, (F) 0.8, (G) 1, and (H) 1.2 ms) before USPIO injection, with focus on enthesis pathological area signal assessment for the same rat. (b) Sagittal in vivo 3D multiecho UTE images 24 hours later, at D4 (8 TE values: (A) 0.031, (B) 0.1, (C) 0.2, (D) 0.3, (E) 0.5, (F) 0.8, (G) 1, and (H) 1.2 ms) after USPIO injection, with focus on enthesis pathological area signal assessment for the same rat. No signal drop was noted after USPIO injection in 3D multiecho UTE images.

(a)

(b)