Bogost G A, Lizerbram E K, Crues J V
Cedars Sinai Imaging, Cedars Sinai Medical Center, Los Angeles, Calif., USA.
Radiology. 1995 Oct;197(1):263-7. doi: 10.1148/radiology.197.1.7568834.
To determine the frequency of unsuspected pelvic fracture and soft-tissue injury in patients referred for magnetic resonance (MR) imaging for possible radiographically occult hip fracture.
Seventy patients with symptoms of possible hip fracture but negative plain radiographs were evaluated with MR imaging. Large-field-of-view T1-weighted coronal images were obtained, and additional T2-weighted or short inversion time inversion recovery (STIR) sequences were used. The number of soft-tissue and bone injuries identified was recorded.
Eighty percent of patients had bone or soft-tissue abnormalities. Occult femoral and pelvic fractures were demonstrated in 37% and 23% of patients, respectively. Soft-tissue abnormalities were noted in 74% of patients. When a proximal femoral fracture was not present, MR imaging revealed a 27% frequency of occult pelvic fracture and a 50% frequency of bone or soft-tissue abnormality.
A high prevalence of occult pelvic fracture and soft-tissue injury may be identified with MR studies designed to evaluate occult hip fracture when large-field-of-view T1-weighted coronal sequences are combined with T2-weighted or STIR sequences.
确定因可能存在X线隐匿性髋部骨折而接受磁共振（MR）成像检查的患者中未被怀疑的骨盆骨折和软组织损伤的发生率。
对70例有髋部骨折可能症状但X线平片阴性的患者进行MR成像评估。获取大视野T1加权冠状位图像，并使用额外的T2加权或短反转时间反转恢复（STIR）序列。记录所发现的软组织和骨损伤数量。
80%的患者存在骨或软组织异常。分别有37%和23%的患者显示有隐匿性股骨和骨盆骨折。74%的患者存在软组织异常。当不存在股骨近端骨折时，MR成像显示隐匿性骨盆骨折的发生率为27%，骨或软组织异常的发生率为50%。
当大视野T1加权冠状位序列与T2加权或STIR序列相结合用于评估隐匿性髋部骨折的MR研究时，可能会发现隐匿性骨盆骨折和软组织损伤的高发生率。
