CAJ | 학술논문

目的：探讨CT能谱成像（GSI）技术对甲状腺结节出血的诊断价值。资料与方法收集经手术病理证实的17例甲状腺结节出血患者，均行甲状腺CT能谱单能模式进行扫描，测量并比较甲状腺出血结节和周围正常甲状腺组织的CT值、碘浓度值、水浓度值及有效原子序数值，观察甲状腺出血结节和周围正常甲状腺组织的能谱曲线，并计算能谱曲线斜率。结果甲状腺结节出血的能谱CT表现的特征性：等、高CT值、低碘含量、高水含量、低有效原子序数及低能谱曲线斜率。出血结节与周围正常甲状腺组织的碘浓度值、水浓度值、能谱衰减曲线斜率差异有统计学意义（Z=－5.438、－4.679、－5.317，P<0.01），CT值、有效原子序数值差异有统计学意义（Z=－2.097、－2.230，P<0.05）。结论 CT能谱成像对甲状腺结节出血的检出及准确诊断具有重要价值。
목적：탐토CT능보성상（GSI）기술대갑상선결절출혈적진단개치。자료여방법수집경수술병리증실적17례갑상선결절출혈환자，균행갑상선CT능보단능모식진행소묘，측량병비교갑상선출혈결절화주위정상갑상선조직적CT치、전농도치、수농도치급유효원자서수치，관찰갑상선출혈결절화주위정상갑상선조직적능보곡선，병계산능보곡선사솔。결과갑상선결절출혈적능보CT표현적특정성：등、고CT치、저전함량、고수함량、저유효원자서수급저능보곡선사솔。출혈결절여주위정상갑상선조직적전농도치、수농도치、능보쇠감곡선사솔차이유통계학의의（Z=－5.438、－4.679、－5.317，P<0.01），CT치、유효원자서수치차이유통계학의의（Z=－2.097、－2.230，P<0.05）。결론 CT능보성상대갑상선결절출혈적검출급준학진단구유중요개치。
PurposeTo explore the value of gemstone spectral imaging (GSI) in diagnosis of thyroid nodule hemorrhage.Materials and Methods Seventeen patients with surgery and pathology confirmed thyroid nodule hemorrhage underwent thyroid spectrum CT scan. The CT value, iodine concentration value, water concentration value and the effective atomic ordinal value as well as spectral curve slope of hemorrhagic nodules and surrounding normal thyroid tissue were measured respectively.Results Hemorrhagic thyroid nodules showed equal or high CT value, low concentration of iodine, high concentration of water, low spectral curve slope, and low effective atomic ordinal value on spectral CT imaging. There were statistically significant differences in concentration of iodine value, concentration of water value, and spectral curve slope between hemorrhagic nodules and surrounding normal thyroid tissue (Z=-5.438,-4.679 and-5.317,P<0.01), and there were statistically significant differences in CT value and effective atomic ordinal value (Z=-2.097 and-2.230,P<0.05).Conclusion Energy spectrum CT scan is important in detection and accurate diagnosis of thyroid nodule hemorrhage.