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目的探讨能更好的显示类风湿关节炎足部结构的摄影方法。方法选择类风湿关节炎患者40例,随机分成A、B两组,每组20例。A组采取常规摄影方法;B组采用改进摄影方法,将中心线向头侧倾斜5度,通过第三跖骨基底部入射。分析两组图像质量,测量第二、三跖趾关节面投影半影。结果 B组第二、三跖趾骨关节间隙清晰,无明显的骨组织重叠影,而A组第二、三跖趾骨关节间隙大部分被趾骨关节面的半影遮挡。B组第二、三趾骨关节面投影半影较A组小(P<0.05)。结论改进摄影方法的足部正位摄影能较好的显示关节结构。
Objective To explore a method of photography that can better show the structure of the foot of rheumatoid arthritis. Methods Forty patients with rheumatoid arthritis were randomly divided into A and B groups, 20 cases in each group. A group to take conventional photography; B group using improved photography method, the center line tilted to the head 5 degrees, through the third metatarsal basement incidence. Analysis of the two groups of image quality, measuring the second and third metatarsophalangeal joint projection penumbra. Results The second and third metatarsophalangeal joints in group B had a clear and clear interstitial space, while the second and third metatarsophalangeal joint space in group A was mostly blocked by the penumbra of phalangeal articular surface. The penumbra of the second and third phalanges of the B group was smaller than that of the A group (P <0.05). Conclusion Improvements in photographic methods of foot photography can better show the joint structure.