2024年1月25日 · The target sign of intestinal intussusception, also known as the doughnut sign or bull's eye sign. The appearance is generated by concentric alternating echogenic and hypoechoic bands. The echogenic bands are formed by the serosa and submucosa either side of the hypoechoic muscularis propria 1. See also. pseudokidney (intussusception)

2024年7月7日 · The doughnut sign can refer to various imaging appearances: crescent in a doughnut sign (bowel) double doughnut sign. doughnut sign (bone scan) doughnut sign (bowel) doughnut sign (chest) doughnut sign (missed testicular torsion) doughnut sign (orbit)

Doughnut sign. A lateral chest radiograph with the “doughnut sign”: the white arrows clearly demonstrate the presence of a white radiopaque ring at hilar region. It is created by enlarged lymph nodes at hilar and subcarinal region, located around intermedius bronchus, and normal profiles of right and left pulmonary arteries and aortic arch ...

The doughnut sign or target sign refers to the alternating echogenic (mucosa and muscularis)) and hypoechoic (submucosa) concentric bands which are caused by the invagination of the bowel [loop]http://www.criticalcare-sonography.com/wp-content/uploads/2017/02/Produce_48.mp4[/loop]

2016年10月6日 · Although it is traditionally reported in children, the “doughnut” sign is increasingly reported on computed tomography (CT) imaging to describe intussusception in adults. On CT, this represents the appearance of outer and inner bowel loops of the intussusceptum and the intussuscipiens, respectively, accompanied by a layering effect (Fig. 2 ...

炸面圈征（doughnut sign）是2018年公布的核医学名词。 骨显像时病灶中心显像剂分布减少，病灶周围显像剂增高呈环形的影像表现。 多见于股骨头缺血性坏死中期。 《核医学名词》第一版。 [1] 炸面圈征（doughnut sign）是2018年公布的核医学名词。

The doughnut sign visualised on the lateral chest radiograph is formed by the normal right and left main pulmonary arteries and the posterior aspect of the aortic arch anteriorly and superiorly and

The characteristic features would demonstrate a sausage-shaped soft tissue mass, or the classic 'target' or 'doughnut' sign showing concentric rings due to duplication of small bowel layers. ...

2020年4月27日 · The crescent in a doughnut sign refers to the transverse ultrasound appearance of intestinal intussusception, and is a variation of the target sign (which is also known as the doughnut sign) The doughnut is formed by concentric …

Doughnut sign. A normal lateral chest radiograph is shown depicting several of the anatomic landmarks used to localize a subcarinal mass (A: 1, posterior wall of the bronchus intermedius; 2, left upper lobe bronchus; 3, right upper lobe bronchus; 4, approximate level of the carina).