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تعداد آیتم قابل مشاهده باقیمانده : -7 مورد

Bone stress injury grading by radiograph, bone scan, and MRI

Bone stress injury grading by radiograph, bone scan, and MRI
Grade Plain radiographs Bone scan[1] MRI[2]
1 Normal Small ill-defined cortical area of mildly increased activity Positive STIR image
2 Normal Larger well-defined elongated cortical area of moderately increased activity Positive STIR and T2-weighted images
3 ± Periosteal reaction Wide, fusiform cortico-medullary area of highly increased activity Positive T1- and T2-weighted images, no cortical fracture line
4 Periosteal reaction, ± fracture line Extensive trans-cortical area of intensely increased activity Cortical fracture line; positive T1- and T2-weighted images
STIR: short-tau inversion sequence.
References:
  1. Zwas ST, Elkanovitch R, Frank G. Interpretation and classification of bone scintigraphic findings in stress fractures. J Nucl Med 1987; 28:452.
  2. Fredericson M, Bergman AG, Hoffman KL, Dillingham MS. Tibial stress reaction in runners: Correlation of clinical symptoms and scintigraphy with a new magnetic resonance imaging grading system. Am J Sports Med 1995; 23:472.
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