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Sonography of acute osteomyelitis in rabbits with pathologic correlation
J E Cheon1, H W Chung, S H Hong
1Department of Radiology, Seoul National University College of Medicine and Seoul National University Hospital, Korea.
Academic Radiology
|March 16, 2001
Summary
Ultrasonography (US) effectively identifies signs of acute osteomyelitis, such as juxtacortical abnormal echogenicity and soft-tissue infection. These US findings correlate well with pathological evidence of periosteal reaction and subperiosteal abscesses.
Area of Science:
- Medical Imaging
- Orthopedics
- Infectious Diseases
Background:
- Osteomyelitis diagnosis relies on various methods.
- Ultrasonography (US) shows promise for detecting bone and soft tissue infections.
Purpose of the Study:
- To identify characteristic sonographic features of acute osteomyelitis.
- To correlate US findings with pathological results.
Main Methods:
- An experimental rabbit model of acute osteomyelitis was created.
- Daily ultrasonography and radiography were performed over two weeks.
- Sonographic evaluation included periosteal reaction, subperiosteal fluid, and soft-tissue changes.
Main Results:
- A hypoechoic band along the cortex, indicating subperiosteal fluid, was the most common US finding (75%).
- US detected periosteal reactions earlier than radiography.
- Abnormal echogenicity correlated with periosteal elevation and subperiosteal abscesses.
Conclusions:
- Ultrasonography is effective in visualizing juxtacortical abnormalities and soft-tissue infections in acute osteomyelitis.
- US findings correlate well with pathological evidence of periosteal reaction and abscess formation.