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KMID : 1103720150730050300
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Journal of the Korean Society of Radiology
2015 Volume.73 No. 5 p.300 ~ p.306
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Image-Guided Percutaneous Needle Biopsy for Infectious Spondylitis: Factors Affecting Culture Positivity
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Sung Si-Youn
Kwon Jong-Won
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Abstract
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Purpose
To evaluate the variable factors affecting the results of percutaneous needle biopsies for infectious spondylitis.
Materials and Methods
In all, 249 patients who underwent both MRI and percutaneous needle biopsies due to a suspicion of infectious spondylitis were evaluated with respect to the following factors: the usage of antibiotics before the procedure, the location of the biopsy, the guiding equipment used, the experience level of the operators, and the number of biopsies performed.
Results
The positivity of culture in cases of treated with antibiotics (16.3%) before the biopsy was lower than in the untreated cases (30.5%) (p = 0.004). Biopsies performed at the abscess (43.5%) and with fluoroscopic guidance (27.8%) showed higher culture positivity as well. The experience level of the operators and the number of biopsies had no effect on culture positivity.
Conclusion
The usage of antibiotics before the biopsy, the biopsy's location, and the guiding equipment used affect the culture positivity, while the experience levels of the operators and the number of biopsies do not have an effect.
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KEYWORD
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Percutaneous Biopsy, Infection, Computed Tomography, Spondylitis, Fluoroscopy
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