Normal flow patterns of intracranial and spinal cerebrospinal fluid defined with phase-contrast cine MR imaging.

医学 蛛网膜下腔 心脏周期 收缩 舒张期 大池 脑脊液 心室系统 放射科 解剖 内科学 血压
作者
Dieter R. Enzmann,N J Pelc
出处
期刊:Radiology [Radiological Society of North America]
卷期号:178 (2): 467-474 被引量:327
标识
DOI:10.1148/radiology.178.2.1987610
摘要

A phase-contrast cine magnetic resonance (MR) imaging technique was used to study normal dynamics of cerebrospinal fluid (CSF) in 10 healthy volunteers and four patients with normal MR images. This pulse sequence yielded 16 quantitative flow-encoded images per cardiac cycle (peripheral gating). Flow encoding depicted craniocaudal flow as high signal intensity and caudo-cranial flow as low signal intensity. Sagittal and axial images of the head, cervical spine, and lumbar spine were obtained, and strategic sites were analyzed for quantitative CSF flow. The onset of CSF systole in the subarachnoid space was synchronous with the onset of systole in the carotid artery. CSF systole and diastole at the foramen of Monro and aqueduct were essentially simultaneous. The systolic and diastolic components were different in the subarachnoid space, where systole occupied approximately 40% and diastole 60% of the cardiac cycle, compared with the ventricular system, where they were equal. This difference results in systole in the intracranial and spinal subarachnoid spaces preceding that in the ventricular system; the same is true for diastole. The fourth ventricle and cisterna magna serve as mixing chambers. The high-velocity flow in the cervical spine and essentially no flow in the distal lumbar sac indicate that a portion of the capacitance necessary in this essentially closed system resides in the distal spinal canal.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
卡机了完成签到,获得积分10
刚刚
平淡绿柏完成签到,获得积分10
2秒前
架子猫发布了新的文献求助10
2秒前
2秒前
颠覆乾坤发布了新的文献求助10
3秒前
乔乔完成签到,获得积分10
4秒前
学术小白完成签到,获得积分10
4秒前
min完成签到,获得积分10
4秒前
4秒前
汉堡包应助slin_sjtu采纳,获得10
4秒前
czx完成签到,获得积分10
5秒前
szxnb666发布了新的文献求助30
5秒前
MRJJJJ完成签到,获得积分10
5秒前
chaser完成签到,获得积分10
5秒前
光亮白山完成签到 ,获得积分10
6秒前
科研通AI2S应助大橙子采纳,获得10
6秒前
6秒前
小马甲应助meng采纳,获得10
7秒前
pz发布了新的文献求助10
7秒前
zhou1216完成签到 ,获得积分10
8秒前
小格子完成签到,获得积分10
9秒前
zgt01发布了新的文献求助10
9秒前
锥子完成签到,获得积分10
9秒前
Yjh完成签到,获得积分10
9秒前
MOOTEA发布了新的文献求助10
11秒前
勤奋的从菡完成签到 ,获得积分20
13秒前
MZ完成签到,获得积分0
15秒前
Tuffy_Du完成签到,获得积分10
16秒前
自信的高山完成签到,获得积分10
16秒前
17秒前
18秒前
cossen完成签到,获得积分10
18秒前
21秒前
bcc666发布了新的文献求助10
21秒前
sunrise_99完成签到,获得积分10
23秒前
fufufu123发布了新的文献求助10
24秒前
大个应助bcc666采纳,获得10
28秒前
Y_完成签到 ,获得积分10
29秒前
汉堡包应助futong采纳,获得10
29秒前
牛马哥完成签到,获得积分10
30秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038235
求助须知:如何正确求助?哪些是违规求助? 3575992
关于积分的说明 11374009
捐赠科研通 3305760
什么是DOI,文献DOI怎么找? 1819276
邀请新用户注册赠送积分活动 892662
科研通“疑难数据库(出版商)”最低求助积分说明 815022