Service de Radiologie 1, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, Strasbourg, France.
Service de Gastro-entérologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
Abdom Radiol (NY). 2018 Jun;43(6):1508-1509. doi: 10.1007/s00261-017-1321-2.
The Hourglass sign is a useful imaging clue for diagnosing diaphragmatic ruptures with viscera herniation on multidetector CT, with a sensitivity ranging from 16% to 63% and a specificity around 98%-100%. This sign is also commonly found in the literature under the name "Collar sign," first described in 1995 by Worthy et al. It refers to the waistlike constriction of the herniated structure at the site of the diaphragmatic rupture.
沙漏征是多排螺旋 CT 诊断膈疝伴内脏疝的有用影像学线索，其敏感度为 16%至 63%，特异度约为 98%至 100%。该征象在文献中也常被称为“领结征”，由 Worthy 等人于 1995 年首次描述。它是指膈破裂部位疝出结构的腰部样狭窄。
