| 孙红,李天文,惠萍,王新明.高位心包上隐窝CT表现与意义[J].中国医学影像技术,2006,22(10):1513~1516 |
| 高位心包上隐窝CT表现与意义 |
| The high-located superior pericardial recess: CT findings and clinical significance |
| 投稿时间：2006-06-24 修订日期：2006-10-07 |
| DOI： |
| 中文关键词: 心包隐窝 体层摄影术,X线计算机 |
| 英文关键词:Pericardial recess Tomography, X-ray computed |
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| 中文摘要: |
| 目的 熟悉高位心包上隐窝的CT表现及其对诊断与鉴别诊断的意义。方法 前瞻性对连续800例进行胸部螺旋CT检查的患者的CT图像进行观察,对明确或怀疑有高位心包上隐窝者进行1.25 mm薄层重建和多平面重建,经2名有经验的医师最后确认,统计高位心包上隐窝的出现率,描述其表现并测量其大小。结果 ①19例最后被确认为高位心包上隐窝,占2.4%。在横轴位上表现为右侧气管旁区圆形、卵圆形、半月形、三角形或铸型灌注状水样密度结构,冠、矢状位呈长条带状,上部盲端呈囊袋状,往下紧贴无名动脉和升主动脉且与常见部位心包上隐窝相连。②大小:横轴位,平均长径和短径分别为19 mm和14 mm;矢状位或冠状位最长径平均56 mm。结论 CT薄层和多平面重建可更好地观察高位心包上隐窝,从而更有把握地与纵隔病变相鉴别。 |
| 英文摘要: |
| Objective To clarify the CT features and clinical significance of the high-located superior pericardial recess (HSPR). Methods Eight hundreds consecutive chest spiral CT scans were prospectively evaluated and the imaging of those suspected with HSPR were reconstructed with 1.25 mm thin-section and performed with multiplanar reformations. The prevalence and appearance of HSPR were determined. Results ① Nineteen cases (2.4%) were determined with HSPR, which manifested in the right paratracheal region as a triangular, round, oval or semilunar structure or was molded by adjacent structure in axial images, as a long band-like structure along the lateral wall of right brachiocephalic artery, the ascending aorta with a upper sac-like blind end in coronal and sagittal reformations, and which was contiguous with the superior pericardial recess on caudal images. ②Size: the average diameter of the short-axis and long-axis of HSPR was 14 mm and 19 mm respectively with 56 mm mean length of vertical extension. Conclusion HSPR is better depicted on thin-section CT images and multiplanar reformations which can be helpful for distinguishing confidently from abnormal findings such as lymphadenopathy and cystic lesions. |
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