Signs for pleural effusion — Quad & Sinusoid sign

Quad sign (static sign)
4 lines surrounding effusion
pleura, ribs and lung
靜態的四條線,由肋膜線,肋骨造成的陰影線和肺部表線的線所組成,
簡言之就是肋骨陰影線(2條)和肋膜線(visceral & parietal)所圍起來的區域

Sinusoid sign (dynamic sign)
moving line in M-mode, representing lung moving toward the pleural line
在開啟M mode的功能下,看到肺部的表面往胸壁移動的過程,
可以用來區分到底是肋膜積水或著是肋膜的病變

See the relevant article
Lung ultrasound in the evaluation of pleural effusion

發表迴響