Ultrasonographic diagnosis of scalp arteriovenous malformations
- VernacularTitle:头皮动静脉畸形的彩色多普勒超声诊断
- Author:
Xiaoyan ZHOU
;
Yunyou DUAN
;
Xi LIU
;
Al ET
- Publication Type:Journal Article
- Keywords:
Ultrasonography,Doppler;
Scalp;
Arteriovenous malformations
- From:
Chinese Journal of Ultrasonography
2003;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the ultrasonographic characters in the patients with scalp arteriovenous malformations and evaluate the value of ultrasonography in the diagnosis.Methods The head soft tissue mass,bilateral superficial temporal artery and occipital artery in 9 patients with scalp arteriovenous malformations were examined using high frequency ultrasound.The caliber,systole peak velocity(Vmax),diastole end velocity(Vmin) and resistance index(RI) of the abnormal vessels were recorded.The findings were compared and analyzed with those of the cerebral angiography and ultrasonography in 40 healthy volunteers.Results These lesions displayed subcutaneous hypoecho or no echo region full of reticular or honeycombed darkspace by two dimensional ultrasound,rich signals with flickering and bright mosaic flow by color Doppler and the spectra of high velocity and low resistance by pulsed Doppler.Arterial spectral shape with high velocity and low resistance were found within the lesions and Vmax( 77.7 ? 14.3 ) cm/s,Vmin( 44.3 ? 5.7 )cm/s,RI= 0.41 ? 0.09 .Sixteen feeding arteries with spectra of high velocity and low resistance were checked out,their caliber,Vmax and Vmin were higher and RI lower significantly than those in the control (P
