두부 측 방향 방사선검사 시 선원 영상수용체간 거리와 검사 자세 변화가 선량과 영상품질에 미치는 영향

• 영문명: Assessment of Dose and Image Quality according to the Change of Distance from Source to Image Receptor and the Examination Posture during the Skull Lateral Radiography
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 김은혜(Eun-Hye Kim) 주영철(Young-Cheol Joo) 김한용(Han-Yong Kim) 김동환(Dong-Hwan Kim)
• 간행물 정보: 『방사선기술과학』제45권 제6호, 483~489쪽, 전체 7쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2022.12.31

영문 초록

This study proposes a new skull lateral examination, and provides an improved examination environment for patients and radiologists. The study was divided into three groups. One group was divided into the SID (source to image receptor distance) 110 ㎝ and 180 ㎝ in the skull lateral posture, the other group The other group was divided into an position in contact with the detector and an position without contact with the detector, and the other group was divided into male and female groups, considering that the difference in shoulder width between adult males and females would affect the dose and image quality. For dose evaluation, the ESD (entrance surface dose) was measured at the EAM (external auditory meatus), and the conditions were applied equally at 70 ㎸p, 200 ㎃, and 10 ㎃s. For image quality evaluation, SNR (signal to noise ratio) and CNR (contrast to noise ratio) were measured in frontal sinus, EAM, and sella turcica. As a result of ESD comparison, when sid 110 ㎝ to sid 180 ㎝ was changed among the three groups, ESD values decreased the most to 729.18±4.62 μ㏉ and 224.18±0.74 μ㏉ at 180 ㎝ (p<0.01). The values of SNR and CNR were statistically significant (p<0.01), but there was no qualitative difference. This shows that when the SID is 180 ㎝, it is possible to reduce the dose without lowering the image quality. So, It is suggested that the SID 180 ㎝ is used without contacting the detector when examining the skull lateral.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

REFERENCES

키워드

두부 측면 방사선검사 선원과 영상수용체 간 거리 검사 자세 입사표면선량 영상품질 Skull Lateral Radiographic Examination Source To Image Receptor Distance Examination Posture Entrance Surface Dose Image Quality