191.Double aortic arch (DAA)(双主动脉弓)

2020
05/20

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今日份医学影像学英语文章已送达,赶紧读起来吧!

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The DAA is the most common symptomatic vascular ring. Although esophageal compression may produce symptoms, respiratory findings, including distress, wheezing, or stridor, predominate. 

双主动脉弓是最常见的异常血管环。食管受压是会产生一些症状、比如呼吸系统的呼吸窘迫、哮喘、哮鸣等等。

On plain films, the DAA will demonstrate a right arch and generalized overaeration. Displacement or indentations on the trachea may be seen, or there may be complete loss of the tracheal air column on frontal projection, as in this case. The esophagram, however, is more valuable as the DAA produces a characteristic reverse S indentation on the esophagus. The upper indentation is produced by the right-sided arch and the lower indentation by the left-sided arch. A posterior indentation is produced by the encircling posterior arch. 

在平片中,双主动脉弓可表现为右侧主动脉弓和正常通气。气管可能表现为移位或者有切迹。或许在正位片上,气管可能会完全受压(正如该患者)。但是食管造影对于诊断双主动脉弓更有价值。在食管上形成特征的“反S”压迹。上面的切迹由右侧的主动脉弓形成,下面的切迹由左侧的主动脉弓形成。后方的切迹由后方的主动脉弓环形成。

In most cases (80%), the right arch is higher, larger, and more posterior than the smaller anterior left arch. However, in some cases, the left arch is dominant, or the arches are symmetric. CT and MRI have replaced aortography, as they noninvasively confirm the diagnosis and clearly delineate the arch anatomy for surgical planning.

在大多数病例中(80%),右侧主动脉弓更高、更大,位于左前小主动脉弓的后方。但是有的病例中,左主动脉弓为优势主动脉弓、或者两者对称。现在常用CT和MRI代替主动脉造影,可以无创确诊,并清晰勾勒主动脉弓的解剖关系,制定手术计划。

Notes:

1. Double aortic arch 双主动脉弓

2. esophageal [ˌi:sə'fædʒɪəl] adj. 食管的

3. respiratory [ˈrespərətɔ:ri] adj. 呼吸的;

4. stridor ['straɪdə] n. 喘鸣

5. aeration [er'reɪʃn] n. 通气; 增氧

6. trachea [ˈtreɪkiə] n. 气管

7. esophagram [i:'sɒfəɡræm] 食管X线片

8. esophagus [ɪˈsɑfəɡəs] n. 食管

来源:每天朗读一段医学影像学英语文章

本文由作者自行上传,并且作者对本文图文涉及知识产权负全部责任。如有侵权请及时联系(邮箱:guikequan@hmkx.cn
关键词:
aortic,主动脉弓,食管

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