Diagnostic imaging of autologous lashes within vitreous body of rabbit / 中国医学影像技术

ABSTRACT

Objective To observe the value of ultrasonography, MR and MSCT in diagnosing intravitreous autologous eyelashes. Methods Thirty-two New Zealand rabbits were averagely divided into 4 groups (A, B, C and D) randomly, and 1, 5, 10 eyelashes were implanted into vitreous body of rabbits respectively in group A, B, and C, whereas rabbits in group D (the control group) were only exposed to sham operation without implanting any eyelashes. After one week, all rabbits underwent ultrasound, MR and MSCT examination, then the specimens of vitreous bodies were obtained and observed pathologically. Results All the implanted intravitreous eyelashes were displayed with ultrasound. Intravitreous eyelashes in group A were not detected with MRI, whereas in 3 rabbits of group B and all of group C were displayed on T2WI, T2*WI and SWI sequences. MSCT detected intravitreous eyelashes in only 6 experimental animals. Conclusion Ultrasonography should be considered as the first choice for diagnosis of intravitreous autologous eyelashes. Different sequences of MRI have various advantages in diagnosing intravitreous autologous eyelashes, whereas the diagnostic value of MSCT is limited.