利用磁共振成像对静脉缺血进行分类。

Classification of venous ischaemia with MRI.

作者信息

Kawaguchi T, Kawano T, Kaneko Y, Ooasa T, Tsutsumi M, Ogasawara S

机构信息

Department of Neurosurgery, Fukuoka Tokushukai Hospital, Kasuga, Japan.

出版信息

J Clin Neurosci. 2001 May;8 Suppl 1:82-8. doi: 10.1054/jocn.2001.0884.

DOI:10.1054/jocn.2001.0884

PMID:11386833

Abstract

PURPOSE

Venous ischaemia is diagnosed by angiography and estimated with SPECT and PET. But venous ischaemia presents different features due to aetiology, type of onset, time course and collateral circulation. The purpose of this study was to analyse and to classify VI with MRI.

METHODS

An analysis of 12 cases of dural arteriovenous fistula (DAVF) with venous ischaemia, 4 cases of sinus thrombosis, and a case of cortical venous thrombosis was performed. Venous ischaemia is classified with MRI as Type 1: no abnormality, Type 2: T2WI showed high signal intensity area and Gd-MRI showed no enhancement, Type 3: T2WI showed high signal intensity area and Gd-MRI showed enhancement, Type 4: venous infarction or haemorrhage.

RESULTS

Type 1 was 8 cases. Type 2 was 3 cases and indicated cytotoxic oedema. Type 3 was 2 cases and indicated vasogenic oedema because of the destruction of blood brain barrier. Type 4 was 4 cases.

CONCLUSIONS

The classification may be a useful indicator of severity of venous ischaemia and treatment.

摘要

目的

静脉缺血通过血管造影进行诊断，并通过单光子发射计算机断层扫描（SPECT）和正电子发射断层扫描（PET）进行评估。但由于病因、发病类型、病程和侧支循环的不同，静脉缺血呈现出不同的特征。本研究的目的是利用磁共振成像（MRI）对静脉缺血进行分析和分类。

方法

对12例伴有静脉缺血的硬脑膜动静脉瘘（DAVF）、4例静脉窦血栓形成病例和1例皮质静脉血栓形成病例进行了分析。MRI将静脉缺血分为1型：无异常；2型：T2加权成像（T2WI）显示高信号强度区域，钆增强磁共振成像（Gd-MRI）无强化；3型：T2WI显示高信号强度区域，Gd-MRI有强化；4型：静脉梗死或出血。