A comparison of bone scintigraphy and MRI in the early diagnosis of the occult scaphoid waist fracture

被引:80
作者
Fowler, C [1 ]
Sullivan, B
Williams, LA
McCarthy, G
Savage, R
Palmer, A
机构
[1] Univ Wales Hosp, Dept Radiol, Cardiff CF4 4XW, S Glam, Wales
[2] Royal Gwent Hosp, Dept Radiol, Newport, Gwent, Wales
[3] Royal Gwent Hosp, Dept Orthopaed, Newport, Gwent, Wales
关键词
scaphoid; MRI; bone scintigraphy;
D O I
10.1007/s002560050459
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Objective. To determine the accuracy of MRI in the assessment of the radiographically occult scaphoid fracture. Design. This prospective study com pared the sensitivity and specificity of MRI for detection of radiographically occult scaphoid fractures with bone scintigraphy (BS), the currently accepted imaging modality of choice. Consecutive patients with clinical signs of a scaphoid injury but no evidence of fracture on plain radiographs at presentation and after 7-10 days were evaluated by MRI and BS. All images were reported in masked fashion and the sensitivities and specificities of the imaging modalities determined. All patients with a scaphoid fracture demonstrated by MRT or BS were followed for at least a year after injury. Patients. Forty-three subjects (aged 12-74 years) had both MRI and BS carried out on average 19 days from the injury date. Results and conclusions. Six patients (14%) had scaphoid waist fractures. There were other bony injuries in a further six. In 40 patients there was agreement between the BS and MRI findings. In three cases there was discrepancy between the imaging modalities; in all three MRI was found to be the more sensitive and specific. MRI could become the investigation of choice for this injury.
引用
收藏
页码:683 / 687
页数:5
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