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KMID : 0191120160310000055
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Journal of Korean Medical Science
2016 Volume.31 No. 0 p.55 ~ p.58
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Factors Related to Radiation Exposure during Lumbar Spine Intervention
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Choi Moon-Hyung
Choi Byung-Gil
Jung Seung-Eun
Byun Jae-Young
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Abstract
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Fluoroscopy guidance is useful to confirm anatomical landmark and needle location for spine intervention; however, it can lead to radiation exposure in patients, physicians, and medical staff. Physicians who used fluoroscopy should be cognizant of radiation exposure and intend to minimize radiation dose. We retrospectively reviewed three lumbar spine intervention procedures (nerve root block, medial branch block, and facet joint block) at our institution between June and December, 2014. We performed 268 procedures on 220 patients and found significant difference in radiation dose between two groups classified by performing physicians. The physician who controlled the fluoroscopy unit directly used significantly shorter fluoroscopy (6 seconds) that resulted in a smaller radiation dose (dose area product [DAP] 0.59 Gy?cm2) than the physician supervising the radiographer controlling the fluoroscopy unit (72 seconds, DAP 5.31 Gy?cm2,P < 0.001). The analysis indicates that the difference in fluoroscopy time depends on whether a physician or a radiographer controls the fluoroscopy unit.
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KEYWORD
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Back Pain, Radiography, Interventional, Fluoroscopy, Radiation Dosage, Radiographic Magnification
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