Keywords: Body, BoneCortical bone can be clearly displayed by CT-like MRI using ultrashort TE sequence. This study aimed to investigate the value of CT-like MRI using PETRA (ct-PETRA) sequence in the pediatric musculoskeletal diseases. Our results showed that ct-PETRA had no significant difference in measuring the C-E index and acetabulum index of children's hip joint compared with X-ray, and had no significant difference in visualization of lesions compared with X-ray and CT. Moreover, ct-PETRA has more advantages than X-ray in displaying trabecular fracture of fine bone. CT-like PETRA can be used as conventional complementary sequence for some assessments of pediatric musculoskeletal diseases.
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