CAJ | 학술논문

目的：探讨第二代双源CT的Flash序列在肋骨外伤检查中的应用。方法对28例肋骨外伤患者分别使用常规螺旋序列扫描和二代双源Flash序列扫描，比较两种扫描方法的图像质量及辐射剂量。结果常规螺旋序列扫描图像的优良率明显低于Flash序列扫描图像。Flash序列扫描的管电流、CT容积剂量指数、剂量长度乘积、有效剂量、扫描时间均低于常规螺旋扫描，差异具有统计学意义（P<0.05）。结论Flash序列扫描具有辐射剂量低、扫描时间短、图像质量高等特点，优于常规螺旋序列扫描，值得推广。
목적：탐토제이대쌍원CT적Flash서렬재륵골외상검사중적응용。방법대28례륵골외상환자분별사용상규라선서렬소묘화이대쌍원Flash서렬소묘，비교량충소묘방법적도상질량급복사제량。결과상규라선서렬소묘도상적우량솔명현저우Flash서렬소묘도상。Flash서렬소묘적관전류、CT용적제량지수、제량장도승적、유효제량、소묘시간균저우상규라선소묘，차이구유통계학의의（P<0.05）。결론Flash서렬소묘구유복사제량저、소묘시간단、도상질량고등특점，우우상규라선서렬소묘，치득추엄。
Objective To explore the application value of Flash sequence of second-generation dual-source CT in the examination of rib injury. Methods 28 patients with rib injury were scanned by both conventional spiral sequence scan and second-generation dual-source Flash sequence scan. Then the image quality and radiation dose of the two methods were compared. Results The high-quality image rate of conventional spiral sequence scan were obviously lower than that of Flash sequence scan;the tube current, volume CT dose index (CTDIvol), dose-length product (DLP), effective dose (ED) and scan time of Flash sequence scan were signiifcantly lower than those in conventional spiral sequence scan (P<0.05). Conclusion Flash sequence scan is better than conventional spiral sequence scan in radiation doses, scanning time and image quality which is worthy to be widely applied.