흉부영역에서 디지털 토모신테시스의 유용성 평가

Abstract

To evaluate the usefulness of tomosynthesis in the chest area, simple radiograph, low-dose CT, and tomosynthesis examinations were performed, and their absorbed doses were compared, and finally the images were evaluated. The absorbed dose recorded with the simple Radiograph examination was 0.33±0.27mGy, that of low-dose CT 1.26±0.56 mGy, and that of tomosynthesis 0.55±0.02 mGy, which indicate significance differences in absorbed doses among the examinations(p<0.001). Based on the evaluations of the images, The simple radiograph scores were 1.66±0.72, 1.61±0.63, and 1.57±0.73, respectively; low-dose CT scores were 2.92±0.26, 2.91±0.29, and 2.88±0.32, respectively; and tomosynthesis scores were 2.69±0.51, 2.76±0.43, and 2.66±0.61, respectively. That is, there were statistically significant differences among the examinations(p<0.001), although there was no significant difference between low-dose CT and tomosynthesis examinations. Therefore, tomosynthesis is judged to be a useful examination that can minimize radiation doses to patients during chest examinations and enhance diagnostic efficacy.