通过磁共振成像（MR）和磁共振血管造影（MRA）诊断的下颌动静脉畸形：病例报告

Mandibular arteriovenous malformation diagnosed by MR and MRA: a case report.

作者信息

Yeung K W, Liu G C, Chou M S, Wu D K, Sheu R S, Hong J M, Chen H R

机构信息

Department of Radiology, Kaohsiung Medical College, Taiwan, Republic of China.

出版信息

Gaoxiong Yi Xue Ke Xue Za Zhi. 1995 Apr;11(4):233-8.

PMID:7602659

Abstract

A case of mandibular arteriovenous malformation (AVM) is presented. Prompt diagnosis and appropriate management are essential due to massive bleeding or even death after dental extraction or biopsy. Angiography remains the gold standard in detecting the lesion. Magnetic resonance (MR) imaging with spin-echo sequences reveals the vascular malformation as signal-void. MR angiography can demonstrate the nidus, dilated artery and vein. MR imaging and MR angiography can supplement angiography in the diagnosis of mandibular AVM.

摘要

本文报告一例下颌动静脉畸形（AVM）病例。由于拔牙或活检后可能发生大出血甚至死亡，因此及时诊断和恰当处理至关重要。血管造影仍是检测该病变的金标准。采用自旋回波序列的磁共振（MR）成像显示血管畸形为信号缺失。磁共振血管造影（MRA）可显示畸形血管团、扩张的动脉和静脉。MR成像和MRA在诊断下颌AVM方面可补充血管造影的不足。