Research Article

Adipose-Derived Mesenchymal Stem Cell Exosomes Suppress Hepatocellular Carcinoma Growth in a Rat Model: Apparent Diffusion Coefficient, Natural Killer T-Cell Responses, and Histopathological Features

Table 1

Sequence parameters for liver 3.0-T MR imaging in rats with HCC.

Precontrast T1-weightedT2-weightedDiffusion weightedPostcontrast T1-weighted (3 phases)

Sequence FSPGRSSFSESE/EPIFSPGR
Repetition time (msec)20050006000200
Echo time (msec)2.183.6Minimal2.1
Flip angle (degree)70NANA70
Matrix192 × 256192 × 25664 × 64192 × 256
Field of view (cm2)10 × 710 × 710 × 710 × 7
Section thickness (mm)3333
Intersection gap (mm)0.30.30.30.3
Number of excitations6146
Number of slices13131313
-value used (sec/mm2) NANA0, 800NA

FSPGR: fast spoiled gradient-recalled echo, SSFSE: single shot fast spin-echo, Se/EPI: spin-echo/echo-planar, TR: repetition time, : echo time, NA: not applicable.