Morelli N, Rota E, Michieletti E, Guidetti D
Neurology Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy ; Radiology Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy.
J Ultrasound. 2012 Sep;15(3):176-8. doi: 10.1016/j.jus.2012.06.005. Epub 2012 Jun 27.
The "seagull cry" is an acoustic phenomenon heard during duplex ultrasound. It is caused by harmonic covibrations of a vessel wall in the presence of high-velocity blood flow. It has been reported in a few cases of cerebrovascular disease, such as severe intracranial stenosis, vasospasm or carotid-cavernous fistula.
A 35-year-old man underwent transcranial color-coded sonography (TCCS) for work-up of a severe new-onset headache.
Doppler spectral analysis of the right intracranial carotid bifurcation revealed multiple pairs of mirror-image parallel strings, and a high-frequency seagull cry was heard. Computed tomography-angiography and magnetic resonance imaging of the brain showed an arteriovenous malformation in the right temporal lobe.
The seagull cry is a "musical murmur" with single or multiple frequency that sounds like a musical tone. This is the first report of this phenomenon in a cerebral arteriovenous malformation.
“海鸥叫声”是在双功超声检查期间听到的一种声学现象。它是由高速血流情况下血管壁的谐波协同振动引起的。在少数脑血管疾病病例中曾有报道，如严重颅内狭窄、血管痉挛或颈内动脉海绵窦瘘。
一名35岁男性因新发严重头痛接受经颅彩色编码超声检查（TCCS）。
对右侧颅内颈动脉分叉处进行多普勒频谱分析，发现多对镜像平行条纹，并听到高频海鸥叫声。脑部计算机断层血管造影和磁共振成像显示右侧颞叶有动静脉畸形。
海鸥叫声是一种单频或多频的“音乐性杂音”，听起来像音调。这是该现象在脑动静脉畸形中的首次报道。
