Quantitative analysis of T2 value of shoulder joint cartilage in healthy young adult using T2 mapping / 中国医学影像技术

ABSTRACT

Objective To investigate the feasibility of T2 mapping in evaluating the composition of shoulder cartilage,and to quantitatively analyze T2 values of articular cartilage in healthy young volunteers.Methods Oblique coronal T2 mapping imaging with 8 echo was performed in bilateral shoulder of 16 young healthy volunteers.The pseudo-color map was obtained with post-processing.The shoulder joint cartilage was equally divided into the external,central and internal zones,and T2 values were measured quantitatively.T2 values in the external,central and internal zones were analyzed and compared.T2 values of cartilage between male and female volunteers as well as between left and right sides were analyzed.Resuits T2 values in the external,central and internal zones of cartilage were (38.67 ± 2.82)ms,(38.41 ± 2.52)ms and (36.49± 1.80)ms,respectively.The overall difference was statistically significant (F=7.789,P=0.001).T2 values in the external and central zones of cartilage were larger than those in the internal zone (both P＜0.05).T2 values of cartilagehad no significant differences between the left and right sides in the external,central and internal zones (all P＞0.05).There was significant difference of T2 value in the central zone (P＜0.05),while no significant difference of T2 value in the external and internal zones between different genders was found (both P＞0.05).Conclusion T2 mapping imaging can be used to evaluate the composition of shoulder cartilage changes.