CAJ | 학술논문

目的探讨低剂量螺旋 CT 在矽肺诊断中的应用价值.资料与方法60例矽肺患者分别采用螺旋 CT 常规剂量(130mA)、低剂量(20mA)进行扫描,比较两种扫描条件下矽肺阴影大小、密集度及矽肺分期情况.结果20mA 与130mA 螺旋 CT 扫描均显示≥20mm 阴影16例,大阴影5例,小阴影39例.130mA 扫描1级密集度35例,2级密集度10例,3级密集度15例;20mA 扫描1级密集度33例,2级密集度12例,3级密集度15例.20mA 与130mA 螺旋 CT 扫描均显示矽肺Ⅰ期26例,Ⅱ期12例,Ⅲ期22例,两者在显示矽肺阴影大小、密集度以及矽肺分期方面差异均无统计学意义(P>0.05).结论20mA 低剂量与130mA 常规剂量螺旋 CT 扫描在显示矽肺阴影大小、密集度以及矽肺分期方面无显著差异,20mA 低剂量螺旋 CT 扫描可作为矽肺筛查的手段之一在临床应用.
목적탐토저제량라선 CT 재석폐진단중적응용개치.자료여방법60례석폐환자분별채용라선 CT 상규제량(130mA)、저제량(20mA)진행소묘,비교량충소묘조건하석폐음영대소、밀집도급석폐분기정황.결과20mA 여130mA 라선 CT 소묘균현시≥20mm 음영16례,대음영5례,소음영39례.130mA 소묘1급밀집도35례,2급밀집도10례,3급밀집도15례;20mA 소묘1급밀집도33례,2급밀집도12례,3급밀집도15례.20mA 여130mA 라선 CT 소묘균현시석폐Ⅰ기26례,Ⅱ기12례,Ⅲ기22례,량자재현시석폐음영대소、밀집도이급석폐분기방면차이균무통계학의의(P>0.05).결론20mA 저제량여130mA 상규제량라선 CT 소묘재현시석폐음영대소、밀집도이급석폐분기방면무현저차이,20mA 저제량라선 CT 소묘가작위석폐사사적수단지일재림상응용.
Purpose To explore the value of low-dose spiral CT in the diagnosis of silicosis. Materials and Methods Sixty patients with silicosis were scanned with spiral CT using routine dose of 130 mA and low dose of 20 mA, respectively. The shadow size, intensity and the stage of silicosis under two scanning parameters were compared. Results There were 16 cases with ≥ 20 mm shadows, 5 cases with large shadows and 39 cases with small shadows on both 20 mA and 130 mA scanning. Silicosis intensity was level 1 in 35 cases, level 2 in 10 cases, and level 3 in 15 cases with 130 mA scan, compared with level 1 in 33 cases, level 2 in 12 cases, and level 3 in 15 cases with 20 mA scan. Both 20 mA and 130 mA scans diagnosed 26 cases of stage Ⅰ, 12 of stage Ⅱ, and 22 of stage Ⅲ. There was no statistical difference in shadow size, intensity and staging of silicosis (P>0.05). Conclusion 20 mA low-dose spiral CT has no statistical difference in display shadow size, intensity and staging of silicosis, thus it can be applied in screening of silicosis.