Moon Jin Il, Baek Hye Jin, Ryu Kyeong Hwa, Park Hyun
Department of Radiology Department of Neurosurgery, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Seongsan-gu, Changwon, Republic of Korea.
Medicine (Baltimore). 2017 Nov;96(45):e8616. doi: 10.1097/MD.0000000000008616.
Brain arteriovenous malformations (AVMs) are congenital vascular abnormalities involving abnormal connections between arteries and veins. In clinical practice, imaging studies help evaluate feeding arteries, niduses, draining venous systems, and coexisting complications in patients with brain AVM. They also have an impact on decision-making regarding clinical management. We applied a novel non-contrast-enhanced MR angiography (MRA) technique, termed "silent MRA," for evaluating an incidental brain AVM. Here, we describe the clinical case with radiological review and highlight the technical background and clinical usefulness of silent MRA.
A 60-year-old woman underwent neuroimaging study including MRA to evaluate intracranial cause of headache.
The brain AVM, including its nidus and draining veins, was conspicuously delineated on silent MRA images; these findings correlated well with conventional angiographic findings.
The patient did not receive interventional or surgical treatment.
The patient is being followed up regularly at the outpatient department.
The silent MRA can be a suitable imaging modality for repeated follow-up evaluation for not only brain AVMs but also various intracranial vascular diseases without the use of contrast materials.
脑动静脉畸形（AVM）是一种先天性血管异常，涉及动脉与静脉之间的异常连接。在临床实践中，影像学检查有助于评估脑AVM患者的供血动脉、病灶、引流静脉系统以及并存的并发症。它们还会对临床管理的决策产生影响。我们应用了一种新型的非对比增强磁共振血管造影（MRA）技术，即“静音MRA”，来评估偶然发现的脑AVM。在此，我们描述该临床病例并进行影像学回顾，同时强调静音MRA的技术背景和临床实用性。
一名60岁女性接受了包括MRA在内的神经影像学检查，以评估头痛的颅内病因。
在静音MRA图像上，脑AVM及其病灶和引流静脉清晰可见；这些发现与传统血管造影结果高度吻合。
患者未接受介入或手术治疗。
患者在门诊定期随访。
静音MRA不仅可以作为一种合适的成像方式，用于对脑AVM以及各种颅内血管疾病进行反复的随访评估，而且无需使用造影剂。
