Veins of the brain Arnab Rana - University of...

33
Veins of the brain Arnab Rana Veins of the brain Arnab Rana Last updated 5th December 2016

Transcript of Veins of the brain Arnab Rana - University of...

  • Veins of thebrain

    Arnab Rana

    Veins of the brain

    Arnab Rana

    Last updated 5th December 2016

  • Veins of thebrain

    Arnab Rana

    Optimal viewing

    These slides are best viewed on a desktop or laptopcomputer running genuine Adobe Acrobat Reader

    They have been tested on and are known to work onUniversity classroom PCs

    The slides dont work properly on mobile devices, evenwith genuine Adobe Acrobat Readerespecially theembedded 3D models

    Navigate through the slides with the Page Up or PageDown keys. Clicking on the headings in the margin or thesmall slide icons below also works.

  • Veins of thebrain

    Arnab Rana

    Table of contents

  • Veins of thebrain

    Arnab Rana

    Aberdeen MBChB learning guide links

    Nervous system lecture 6: Venous drainage into venoussinuses

    Nervous system lecture 33: Headache

  • Veins of thebrain

    Arnab Rana

    How to use this online tutorial

    Have your favourite neuroanatomy textbook beside yourcomputer (or an online equivalent)

    Find the labelled structures in your textbook on the 3Dmodel

    Turn and zoom the model as needed to improve yourunderstanding of the 3D structure

    These slides can be navigated by clicking on the headingsin the margin or with the small slide icons below

    Labelled 2D screenshots are provided as slides after themodel

  • Veins of thebrain

    Arnab Rana

    How to use this online tutorial

    Have your favourite neuroanatomy textbook beside yourcomputer (or an online equivalent)

    Find the labelled structures in your textbook on the 3Dmodel

    Turn and zoom the model as needed to improve yourunderstanding of the 3D structure

    These slides can be navigated by clicking on the headingsin the margin or with the small slide icons below

    Labelled 2D screenshots are provided as slides after themodel

  • Veins of thebrain

    Arnab Rana

    How to use this online tutorial

    Have your favourite neuroanatomy textbook beside yourcomputer (or an online equivalent)

    Find the labelled structures in your textbook on the 3Dmodel

    Turn and zoom the model as needed to improve yourunderstanding of the 3D structure

    These slides can be navigated by clicking on the headingsin the margin or with the small slide icons below

    Labelled 2D screenshots are provided as slides after themodel

  • Veins of thebrain

    Arnab Rana

    How to use this online tutorial

    Have your favourite neuroanatomy textbook beside yourcomputer (or an online equivalent)

    Find the labelled structures in your textbook on the 3Dmodel

    Turn and zoom the model as needed to improve yourunderstanding of the 3D structure

    These slides can be navigated by clicking on the headingsin the margin or with the small slide icons below

    Labelled 2D screenshots are provided as slides after themodel

  • Veins of thebrain

    Arnab Rana

    How to use this online tutorial

    Have your favourite neuroanatomy textbook beside yourcomputer (or an online equivalent)

    Find the labelled structures in your textbook on the 3Dmodel

    Turn and zoom the model as needed to improve yourunderstanding of the 3D structure

    These slides can be navigated by clicking on the headingsin the margin or with the small slide icons below

    Labelled 2D screenshots are provided as slides after themodel

  • Veins of thebrain

    Arnab Rana

    Controlling the model

    Pre-defined views can be chosen from Views in thefloating menu, e.g. the straight sinus

    Hold the left mouse button and move the mouse to turnthe model

    Rolling the mouse wheel zooms the model

    Right click brings up a context menu for Tools->Pan

  • Veins of thebrain

    Arnab Rana

    Controlling the model

    Pre-defined views can be chosen from Views in thefloating menu, e.g. the straight sinus

    Hold the left mouse button and move the mouse to turnthe model

    Rolling the mouse wheel zooms the model

    Right click brings up a context menu for Tools->Pan

  • Veins of thebrain

    Arnab Rana

    Controlling the model

    Pre-defined views can be chosen from Views in thefloating menu, e.g. the straight sinus

    Hold the left mouse button and move the mouse to turnthe model

    Rolling the mouse wheel zooms the model

    Right click brings up a context menu for Tools->Pan

  • Veins of thebrain

    Arnab Rana

    Controlling the model

    Pre-defined views can be chosen from Views in thefloating menu, e.g. the straight sinus

    Hold the left mouse button and move the mouse to turnthe model

    Rolling the mouse wheel zooms the model

    Right click brings up a context menu for Tools->Pan

  • Veins of thebrain

    Arnab Rana

    What are the main veins in the brain?

    Veins visible in this model which are worth learning

    Superior sagittal sinus

    Straight sinus

    Right and left transverse sinuses

    Right and left sigmoid sinuses

    Cavernous sinus

  • Veins of thebrain

    Arnab Rana

    What are the main veins in the brain?

    Veins visible in this model which are worth learning

    Superior sagittal sinus

    Straight sinus

    Right and left transverse sinuses

    Right and left sigmoid sinuses

    Cavernous sinus

  • Veins of thebrain

    Arnab Rana

    What are the main veins in the brain?

    Veins visible in this model which are worth learning

    Superior sagittal sinus

    Straight sinus

    Right and left transverse sinuses

    Right and left sigmoid sinuses

    Cavernous sinus

  • Veins of thebrain

    Arnab Rana

    What are the main veins in the brain?

    Veins visible in this model which are worth learning

    Superior sagittal sinus

    Straight sinus

    Right and left transverse sinuses

    Right and left sigmoid sinuses

    Cavernous sinus

  • Veins of thebrain

    Arnab Rana

    What are the main veins in the brain?

    Veins visible in this model which are worth learning

    Superior sagittal sinus

    Straight sinus

    Right and left transverse sinuses

    Right and left sigmoid sinuses

    Cavernous sinus

  • Veins of thebrain

    Arnab Rana

    Diagram from radiologyassistant.nl

    There are more veins labelled here than what you need to know

    http://www.radiologyassistant.nl/en/4befacb3e4691

  • Veins of thebrain

    Arnab Rana

    Limitations

    Limitations of this model

    The inferior sagittal sinus is not visible (this is usually thecase in MR venography)

    There is contamination of the internal carotid arteriesbetween the internal jugular veins and the cavernous sinus

  • Veins of thebrain

    Arnab Rana

    Limitations

    Limitations of this model

    The inferior sagittal sinus is not visible (this is usually thecase in MR venography)

    There is contamination of the internal carotid arteriesbetween the internal jugular veins and the cavernous sinus

  • Veins of thebrain

    Arnab Rana

    Model slow loading

    The next slide contains the model and it loads slowly

  • Veins of thebrain

    Arnab Rana

    3D model

  • Veins of thebrain

    Arnab Rana

    Superior sagittal sinus viewed from the right

  • Veins of thebrain

    Arnab Rana

    Transverse sinuses viewed from posterior

  • Veins of thebrain

    Arnab Rana

    Cavernous sinus

  • Veins of thebrain

    Arnab Rana

    Cerebral venous sinus thrombosis quick facts

    Cerebral venous sinus thrombosis is mentioned briefly in theheadache lecture.

    Epidemiology and risk factors:

    Incidence: RareCaused by infection in the mastiods or orbitOther inherited and acquired thrombophilic states such asoral contraceptives, dehydration, cancer, sepsis,myeloproliferative disorders. Also pregnancy and thepuerperium.More common in younger people due to oral contraceptionbeing a major risk factor

    History and examination:

    Headaches (in 92% of patients) with strokes, seizures ordecreased conscious stateIntracranial hypertension with nausea, vomiting,papilloedema, visual obscuration

  • Veins of thebrain

    Arnab Rana

    Cerebral venous sinus thrombosis quick facts

    Cerebral venous sinus thrombosis is mentioned briefly in theheadache lecture.

    Epidemiology and risk factors:

    Incidence: RareCaused by infection in the mastiods or orbitOther inherited and acquired thrombophilic states such asoral contraceptives, dehydration, cancer, sepsis,myeloproliferative disorders. Also pregnancy and thepuerperium.More common in younger people due to oral contraceptionbeing a major risk factor

    History and examination:

    Headaches (in 92% of patients) with strokes, seizures ordecreased conscious stateIntracranial hypertension with nausea, vomiting,papilloedema, visual obscuration

  • Veins of thebrain

    Arnab Rana

    Cerebral venous sinus thrombosis quick facts

    Cerebral venous sinus thrombosis is mentioned briefly in theheadache lecture.

    Epidemiology and risk factors:

    Incidence: RareCaused by infection in the mastiods or orbitOther inherited and acquired thrombophilic states such asoral contraceptives, dehydration, cancer, sepsis,myeloproliferative disorders. Also pregnancy and thepuerperium.More common in younger people due to oral contraceptionbeing a major risk factor

    History and examination:

    Headaches (in 92% of patients) with strokes, seizures ordecreased conscious stateIntracranial hypertension with nausea, vomiting,papilloedema, visual obscuration

  • Veins of thebrain

    Arnab Rana

    Cerebral venous sinus thrombosis quick facts

    Treatment

    Anticoagulation, even if there is haemorrhagic venousinfarction

    Outcome

    Usually complete recovery with treatmentBut mortality approx 10%

  • Veins of thebrain

    Arnab Rana

    Cerebral venous sinus thrombosis quick facts

    Treatment

    Anticoagulation, even if there is haemorrhagic venousinfarction

    Outcome

    Usually complete recovery with treatmentBut mortality approx 10%

  • Veins of thebrain

    Arnab Rana

    Cerebral venous sinus thrombosis quick facts

    Treatment

    Anticoagulation, even if there is haemorrhagic venousinfarction

    Outcome

    Usually complete recovery with treatmentBut mortality approx 10%

  • Veins of thebrain

    Arnab Rana

    Feedback contact

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    Feedback can e-mailed to [email protected]

    mailto:[email protected]?subject=3D cerebral venous sinuses online