颅脑CT解剖

2021-12-17 华夏影像诊断中心 网络

图文并茂讲解颅脑CT解剖知识

 

1
颅底层面眦耳线层面
  • 颅前窝底部:眼眶,眼球,筛窦,蝶窦,前床突等。

     

  • 颅中窝:前界---蝶骨;后界---颞骨岩部(岩骨);内缘---海绵窦及垂体窝;外缘---颞骨,窝内为颞叶,其内侧为海马回。

     

  • 颅后窝:前缘---岩骨;后缘---枕骨;鞍背后方---脑桥前池,向两侧延伸为脑桥小脑角池。

     

  • 第四脑室:位于颅后窝中线上,后面紧邻小脑蚓部,其两侧为小脑扁桃体。

     

  • 延髓、脑桥:位于第四脑室前。

2
鞍上池层面
  • 颅前窝:颞叶。

     

  • 鞍上池:在垂体窝上方,位于两侧颅中窝之间,前界为颞叶直回,侧方位颞叶海马,呈五角星形或六角星形。其前角连于纵裂池,两外侧角连于外侧裂池,两后外侧角延续于环池,第六个角位于后缘中间,是角间池。鞍上池边缘为大脑动脉环,池内前部常可见“v”字型视交叉。

     

  • 颅后窝:四脑室或四叠体池。

3
第三脑室下部层面
显示侧脑室前角的下部:
  • 前方---额叶;外侧---尾状核头部;后方中线处---第三脑室,其两侧连接丘脑。

颅后窝:
  • “Y”字形或“V”字形的小脑幕,幕下结构在内侧(小脑上蚓部),幕上结构在外侧(枕叶)。

四叠体池:
  • 位于小脑蚓部前方。

4
第三脑室上部层面
  • 基底核、丘脑。

     

  • 内囊前脚(前肢);尾状核和豆状核之间。

     

  • 内囊膝部和后脚(后肢):位于豆状核(由外侧的壳核和内侧的苍白球组成)及丘脑之间。

     

  • 壳核的外侧:外囊、屏状核、最外囊、岛叶(脑岛)。

     

  • 四叠体池:两侧枕叶之间,池内有松果体,向前与第三脑室连接。

基底节(基底核):
  • 埋藏在两侧大脑半球深部的灰质核团,是组成锥体外系的主要结构。

基底节区:概念不清。
可能包括:基底节、黑质、红核、及其周围白质区域。
  • 内囊:位于丘脑、尾状核、豆状核之间的白质区,是由上、下行的传导束密集而成。分为三部分:前肢、膝部、后肢。膝部由皮质脑干束;后肢有皮质脊髓束、丘脑皮质束、听辐射和视辐射。

     

  • 外囊:是位于屏状核和豆状核之间的白质带,主要由岛叶发出的皮质被盖纤维组成

5
侧脑室体部层面
由额、颞、枕叶构成,两侧侧脑室体部之间为透明隔,外侧为尾状核和体部。侧脑室后角(枕角)可不对称,室内可见脉络丛钙化。中线处可见大脑纵裂池和大脑镰。
6
侧脑室上部层面
内侧壁侧脑室体部被胼胝体分开,侧脑室体部的外方为顶叶,顶枕沟及中央沟将大脑为为额、顶、枕叶。
7
大脑皮质下部层面(半卵圆中心层面)
在胼胝体和侧脑室上方,大脑镰自前向后贯穿中线。白质部分为半卵圆中心,额叶范围缩小,顶叶所占比例扩大,枕叶基本消失。
  • 半卵圆中心:位于胼胝体上方,由左右大脑半球髓质形成的有髓纤维,对称位于大脑镰两侧区域。

8
大脑皮质上部层面(半卵圆区上部层面)
已近颅顶,大脑镰清晰可见,其旁的脑灰质和脑沟十分清楚。顶叶较小,额叶较小。
  • 放射冠:是内囊到大脑皮质间的放射状纤维白质。

 

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1719470, encodeId=f2ae1e19470da, content=<a href='/topic/show?id=a6f210045904' target=_blank style='color:#2F92EE;'>#颅脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100459, encryptionId=a6f210045904, topicName=颅脑CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=205a32741895, createdName=wjywjy, createdTime=Sun Apr 17 02:00:18 CST 2022, time=2022-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1810329, encodeId=34c61810329dd, content=<a href='/topic/show?id=aaed84691e7' target=_blank style='color:#2F92EE;'>#脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84691, encryptionId=aaed84691e7, topicName=脑CT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Tue Feb 01 00:00:18 CST 2022, time=2022-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081162, encodeId=29b11081162a5, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ac766408247, createdName=ms3000000246239047, createdTime=Fri Dec 17 14:25:20 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081117, encodeId=963d108111ebb, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201018/1e37b07b849346038be41fe1dac7282c/3397137c98a4401787227b3a9565d458.jpg, createdBy=28372103731, createdName=星痕, createdTime=Fri Dec 17 12:22:01 CST 2021, time=2021-12-17, status=1, ipAttribution=)]
    2022-04-17 wjywjy
  2. [GetPortalCommentsPageByObjectIdResponse(id=1719470, encodeId=f2ae1e19470da, content=<a href='/topic/show?id=a6f210045904' target=_blank style='color:#2F92EE;'>#颅脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100459, encryptionId=a6f210045904, topicName=颅脑CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=205a32741895, createdName=wjywjy, createdTime=Sun Apr 17 02:00:18 CST 2022, time=2022-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1810329, encodeId=34c61810329dd, content=<a href='/topic/show?id=aaed84691e7' target=_blank style='color:#2F92EE;'>#脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84691, encryptionId=aaed84691e7, topicName=脑CT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Tue Feb 01 00:00:18 CST 2022, time=2022-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081162, encodeId=29b11081162a5, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ac766408247, createdName=ms3000000246239047, createdTime=Fri Dec 17 14:25:20 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081117, encodeId=963d108111ebb, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201018/1e37b07b849346038be41fe1dac7282c/3397137c98a4401787227b3a9565d458.jpg, createdBy=28372103731, createdName=星痕, createdTime=Fri Dec 17 12:22:01 CST 2021, time=2021-12-17, status=1, ipAttribution=)]
    2022-02-01 lujian
  3. [GetPortalCommentsPageByObjectIdResponse(id=1719470, encodeId=f2ae1e19470da, content=<a href='/topic/show?id=a6f210045904' target=_blank style='color:#2F92EE;'>#颅脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100459, encryptionId=a6f210045904, topicName=颅脑CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=205a32741895, createdName=wjywjy, createdTime=Sun Apr 17 02:00:18 CST 2022, time=2022-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1810329, encodeId=34c61810329dd, content=<a href='/topic/show?id=aaed84691e7' target=_blank style='color:#2F92EE;'>#脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84691, encryptionId=aaed84691e7, topicName=脑CT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Tue Feb 01 00:00:18 CST 2022, time=2022-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081162, encodeId=29b11081162a5, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ac766408247, createdName=ms3000000246239047, createdTime=Fri Dec 17 14:25:20 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081117, encodeId=963d108111ebb, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201018/1e37b07b849346038be41fe1dac7282c/3397137c98a4401787227b3a9565d458.jpg, createdBy=28372103731, createdName=星痕, createdTime=Fri Dec 17 12:22:01 CST 2021, time=2021-12-17, status=1, ipAttribution=)]
    2021-12-17 ms3000000246239047

    学习

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1719470, encodeId=f2ae1e19470da, content=<a href='/topic/show?id=a6f210045904' target=_blank style='color:#2F92EE;'>#颅脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100459, encryptionId=a6f210045904, topicName=颅脑CT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=205a32741895, createdName=wjywjy, createdTime=Sun Apr 17 02:00:18 CST 2022, time=2022-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1810329, encodeId=34c61810329dd, content=<a href='/topic/show?id=aaed84691e7' target=_blank style='color:#2F92EE;'>#脑CT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84691, encryptionId=aaed84691e7, topicName=脑CT)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Tue Feb 01 00:00:18 CST 2022, time=2022-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081162, encodeId=29b11081162a5, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ac766408247, createdName=ms3000000246239047, createdTime=Fri Dec 17 14:25:20 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1081117, encodeId=963d108111ebb, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201018/1e37b07b849346038be41fe1dac7282c/3397137c98a4401787227b3a9565d458.jpg, createdBy=28372103731, createdName=星痕, createdTime=Fri Dec 17 12:22:01 CST 2021, time=2021-12-17, status=1, ipAttribution=)]
    2021-12-17 星痕

    学习

    0

相关资讯

10种脊柱畸形影像表现汇总!

10种脊柱畸形影像表现汇总.

Radiology:单房胸腺囊肿的纵向CT和MRI特征

自CT作为临床诊断工具出现以来,非水衰减的单发胸腺结节一直是放射科医生和胸外科医生的诊断难题。

脊髓结构及CT和MRI表现

脊髓结构及CT和MRI表现

DCR: CT肠造影指数对克罗恩病患者术后腹腔感染并发症的预测价值

克罗恩病 (CD) 是一种慢性反复发作的胃肠道疾病,目前对于它的发病原因还知之甚少。虽然目前许多医疗工作者正在以改善 CD 患者的预后和生活质量作为治疗目标。

2021 ACR:膝关节CT上的关节内矿化与软骨丢失风险的关系:多中心骨关节炎研究

该研究关注CT上的关节内矿化与老年人膝关节MRI软骨损失的关系,特别关注矿化对软骨病理学的潜在关节位置和组织特异性影响。