中国临床新医学
中國臨床新醫學
중국림상신의학
CHINESE JOURNAL OF NEW CLINICAL MEDICINE
2009年
7期
733-734
,共2页
伪影%影像质量%计算机摄影
偽影%影像質量%計算機攝影
위영%영상질량%계산궤섭영
Artifacts%Tmage quality%Computed radiography(CR)
目的 探讨计算机摄影(CR)伪影的产生原因及解决办法.方法 通过分析CR系统各种伪影的特点,从扫描器的机械结构、工作原理、IP板的构造、影像处理、操作者的错误等方面阐述CR伪影的产生原因.结果 伪影大概可分为:前后次影像重叠伪影、IP板扫描中卡片引起的伪影、"流空效应"伪影、灰尘引起的伪影、IP受损引起的伪影、摄影条件过高产生的伪影、散射线引起的伪影、扫描过程中外来光线引起的伪影等方面.结论 正确认识CR伪影产生的原因,并采取相应的预防措施就能尽量防止伪影的产生,大大提高CR的影像质量.
目的 探討計算機攝影(CR)偽影的產生原因及解決辦法.方法 通過分析CR繫統各種偽影的特點,從掃描器的機械結構、工作原理、IP闆的構造、影像處理、操作者的錯誤等方麵闡述CR偽影的產生原因.結果 偽影大概可分為:前後次影像重疊偽影、IP闆掃描中卡片引起的偽影、"流空效應"偽影、灰塵引起的偽影、IP受損引起的偽影、攝影條件過高產生的偽影、散射線引起的偽影、掃描過程中外來光線引起的偽影等方麵.結論 正確認識CR偽影產生的原因,併採取相應的預防措施就能儘量防止偽影的產生,大大提高CR的影像質量.
목적 탐토계산궤섭영(CR)위영적산생원인급해결판법.방법 통과분석CR계통각충위영적특점,종소묘기적궤계결구、공작원리、IP판적구조、영상처리、조작자적착오등방면천술CR위영적산생원인.결과 위영대개가분위:전후차영상중첩위영、IP판소묘중잡편인기적위영、"류공효응"위영、회진인기적위영、IP수손인기적위영、섭영조건과고산생적위영、산사선인기적위영、소묘과정중외래광선인기적위영등방면.결론 정학인식CR위영산생적원인,병채취상응적예방조시취능진량방지위영적산생,대대제고CR적영상질량.
Objective To discuss the productive reasons of the artifacts of computed radiography (CR)and its solution.Methods Through analysis of the characteristics of various kind of artifacts in CR system, from scanner's mechanism, the principle of work, IP board's structure, image process, operator's errors and so on the CR artifacts productive reason were discussed.Results The artifacts may been divided into: the artifacts induced by the overlap of pre and post images,the artifacts induced by the card in the TP board scanning, the artifacts induced by "the class spatial effect", the artifacts induced by the dust, the artifacts induced by injured TP,the artifacts induced by the excessive photographic condition, the artifacts induced by the disperse beam, and the artifacts induced by the external optical fiber in the scanning process.Conclusion Understood correctly the reason of the CR artifacts, can prevent the production of the artifacts as far as possible, greatly enhances the image quality of CR.
