骨显像胸骨核素分布特征研究

Character of sternal uptake on bone scintigraphy

目的:探讨各个年龄段正常骨显像胸骨核素分布特征。方法:120例无胸骨疼痛症状及肿瘤病史的患者作为研究对象行全身骨显像,分析其胸骨核素分布特征。结果:①儿童组胸骨核素分布特征相似,核素摄取均匀对称;其他年龄组胸骨核素分布具有异型性,可分为7种类型。②胸骨核素浓聚灶多出现在胸骨角,稀疏缺损灶出现在胸骨下端。结论:胸骨核素分布存在年龄相关的正常变异,了解这些变异有助于区分正常与异常改变。

Objective： To describe the normal appearance of the sternal area on bone scintigraphy. Methods： 120 patients, who did not have symptoms of the sternum or a history of malignancy, underwent whole-body bone scan and were evaluated for characters of sternal uptake. Results： ①In pediatric patients, their character was similar, and sternal uptake was homogeneous. In other patients, the sternum showed markedly different, and seven different patterns of sternal uptake were noted. ②The most common hot spot was at the angle of Louis, and there was focal spot of decreased tracer uptake in the lower sternum. Conclusion： This study showed age-related normal variants of sternal uptake. Understanding these variants may be helpful in differentiating normal and abnormal patterns of uptake in the sternum on radionuclide bone imaging.