Arnold-Chiari malformation MRI: Difference between revisions

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Created page with "__NOTOC__ {{SI}} {{CMG}} ==Overview== ==MRI== * MRI is the imaging modality of choice to evaluate for a Chiari I malformation. MRI findings: **Cerebellar tonsillar he..."
 
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*Herniation is usually at least 5mm, though patients with 3-5mm herniation may also have the malformation.
*Herniation is usually at least 5mm, though patients with 3-5mm herniation may also have the malformation.
*MRI CSF flow studies may prove to be helpful and are currently under investigation.
*MRI CSF flow studies may prove to be helpful and are currently under investigation.
<gallery>
Image:Chiari 1 malformation 001.jpg|Sag T2
Image:Chiari 1 malformation 002.jpg|Sag T1
Image:Chiari 1 malformation 003.jpg|Sag T1
Image:Chiari 1 malformation 101.jpg|Sag T1
Image:Chiari 1 malformation 102.jpg|Sag T2
Image:Chiari 1 malformation 103.jpg|Ax T2
Image:Chiari 1 malformation 104.jpg|Ax T2
Image:Chiari 1 malformation 105.jpg|Ax T2
Image:Arnold-Chiari Malformation MRI 0001.jpg|Brain: Arnold Chiari I; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0003.jpg|Brain: Arnold Chiari I, with Hydromyelia of Cervical Spinal Cord; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0007.jpg|Brain: Arnold Chiari II, with Towering of The Cerebellum and Wide Tentorial Incisure; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0008.jpg|Brain: Arnold Chiari II, with Fenestrated Falx Cerebri and Interdigitating Gyri; T2 (MRI)
Image:Arnold-Chiari Malformation MRI 0009.jpg|Brain: Arnold Chiari II, with Tectal Beaking and Large Massa Intermedia and Stenogyria; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0010.jpg|Brain: Arnold Chiari Type II with Medullary Spur and Kink (MRI)
Image:Arnold-Chiari Malformation MRI 0011.jpg|Brain: Arnold Chiari II, with Hypoplastic Corpus Callosum; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0012.jpg|Brain: Arnold Chiari II, with Cerebellar Hemispheres that Creep Anteriorly Around the Brain Stem; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0013.jpg|BRAIN: ARNOLD CHIARI II (MRI)
Image:Arnold-Chiari Malformation MRI 0014.jpg|BRAIN: ARNOLD CHIARI II WITH ELONGATED FOURTH VENTRICLES AND STENOGYRIA; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0015.jpg|BRAIN: ARNOLD CHIARI II WITH HYPOPLASTIC CORPUS CALLOSUM AND STENOGYRIA; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0016.jpg|BRAIN: ARNOLD CHIARI II WITH REPAIRED MYELOMENINGOCELE AND TETHERED SPINAL CORD; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0017.jpg|BRAIN: ARNOLD CHIARI TYPE IV; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0018.jpg|BRAIN: ARNOLD CHIARI TYPE IV; T1 (MRI)
Image:Arnold-Chiari Malformation MRI 0019.jpg|BRAIN: ARNOLD CHIARI MALFORMATION II; 1/2 PCMC (MRI)
Image:Arnold-Chiari Malformation MRI 0020.jpg|BRAIN: ARNOLD CHIARI MALFORMATION II, HERNIATED CEREBELLAR TONSIL; 1/2 PCMC - ARROW (MRI)
Image:Arnold-Chiari Malformation MRI 0021.jpg|SPINAL CORD: ARNOLD CHIARI MALFORMATION II; 2/2 PCMC (MRI)
Image:Arnold-Chiari Malformation MRI 0022.jpg|SPINAL CORD: ARNOLD CHIARI MALFORMATION II; 2/2 PCMC - ARROW (MRI)
Image:Arnold-Chiari Malformation MRI 0023.jpg|BRAIN: ARNOLD CHIARI MALFORMATION; 1/3 T2 (MRI)
Image:Arnold-Chiari Malformation MRI 0024.jpg|BRAIN: ARNOLD CHIARI MALFORMATION; 1/3 - ARROW T2 (MRI)
Image:Arnold-Chiari Malformation MRI 0025.jpg|BRAIN: ARNOLD CHIARI MALFORMATION; 2/3 T2 (MRI)
</gallery>


==References==
==References==

Revision as of 13:29, 28 August 2012

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

MRI

  • MRI is the imaging modality of choice to evaluate for a Chiari I malformation. MRI findings:
  • Tonsillar displacement is measured from the basion-opisthion line on a sigittal image.
  • Herniation is usually at least 5mm, though patients with 3-5mm herniation may also have the malformation.
  • MRI CSF flow studies may prove to be helpful and are currently under investigation.
  • Sag T2
    Sag T2
  • Sag T1
    Sag T1
  • Sag T1
    Sag T1
  • Sag T1
    Sag T1
  • Sag T2
    Sag T2
  • Ax T2
    Ax T2
  • Ax T2
    Ax T2
  • Ax T2
    Ax T2
  • Brain: Arnold Chiari I; T1 (MRI)
    Brain: Arnold Chiari I; T1 (MRI)
  • Brain: Arnold Chiari I, with Hydromyelia of Cervical Spinal Cord; T1 (MRI)
    Brain: Arnold Chiari I, with Hydromyelia of Cervical Spinal Cord; T1 (MRI)
  • Brain: Arnold Chiari II, with Towering of The Cerebellum and Wide Tentorial Incisure; T1 (MRI)
    Brain: Arnold Chiari II, with Towering of The Cerebellum and Wide Tentorial Incisure; T1 (MRI)
  • Brain: Arnold Chiari II, with Fenestrated Falx Cerebri and Interdigitating Gyri; T2 (MRI)
    Brain: Arnold Chiari II, with Fenestrated Falx Cerebri and Interdigitating Gyri; T2 (MRI)
  • Brain: Arnold Chiari II, with Tectal Beaking and Large Massa Intermedia and Stenogyria; T1 (MRI)
    Brain: Arnold Chiari II, with Tectal Beaking and Large Massa Intermedia and Stenogyria; T1 (MRI)
  • Brain: Arnold Chiari Type II with Medullary Spur and Kink (MRI)
    Brain: Arnold Chiari Type II with Medullary Spur and Kink (MRI)
  • Brain: Arnold Chiari II, with Hypoplastic Corpus Callosum; T1 (MRI)
    Brain: Arnold Chiari II, with Hypoplastic Corpus Callosum; T1 (MRI)
  • Brain: Arnold Chiari II, with Cerebellar Hemispheres that Creep Anteriorly Around the Brain Stem; T1 (MRI)
    Brain: Arnold Chiari II, with Cerebellar Hemispheres that Creep Anteriorly Around the Brain Stem; T1 (MRI)
  • BRAIN: ARNOLD CHIARI II (MRI)
    BRAIN: ARNOLD CHIARI II (MRI)
  • BRAIN: ARNOLD CHIARI II WITH ELONGATED FOURTH VENTRICLES AND STENOGYRIA; T1 (MRI)
    BRAIN: ARNOLD CHIARI II WITH ELONGATED FOURTH VENTRICLES AND STENOGYRIA; T1 (MRI)
  • BRAIN: ARNOLD CHIARI II WITH HYPOPLASTIC CORPUS CALLOSUM AND STENOGYRIA; T1 (MRI)
    BRAIN: ARNOLD CHIARI II WITH HYPOPLASTIC CORPUS CALLOSUM AND STENOGYRIA; T1 (MRI)
  • BRAIN: ARNOLD CHIARI II WITH REPAIRED MYELOMENINGOCELE AND TETHERED SPINAL CORD; T1 (MRI)
    BRAIN: ARNOLD CHIARI II WITH REPAIRED MYELOMENINGOCELE AND TETHERED SPINAL CORD; T1 (MRI)
  • BRAIN: ARNOLD CHIARI TYPE IV; T1 (MRI)
    BRAIN: ARNOLD CHIARI TYPE IV; T1 (MRI)
  • BRAIN: ARNOLD CHIARI TYPE IV; T1 (MRI)
    BRAIN: ARNOLD CHIARI TYPE IV; T1 (MRI)
  • BRAIN: ARNOLD CHIARI MALFORMATION II; 1/2 PCMC (MRI)
    BRAIN: ARNOLD CHIARI MALFORMATION II; 1/2 PCMC (MRI)
  • BRAIN: ARNOLD CHIARI MALFORMATION II, HERNIATED CEREBELLAR TONSIL; 1/2 PCMC - ARROW (MRI)
    BRAIN: ARNOLD CHIARI MALFORMATION II, HERNIATED CEREBELLAR TONSIL; 1/2 PCMC - ARROW (MRI)
  • SPINAL CORD: ARNOLD CHIARI MALFORMATION II; 2/2 PCMC (MRI)
    SPINAL CORD: ARNOLD CHIARI MALFORMATION II; 2/2 PCMC (MRI)
  • SPINAL CORD: ARNOLD CHIARI MALFORMATION II; 2/2 PCMC - ARROW (MRI)
    SPINAL CORD: ARNOLD CHIARI MALFORMATION II; 2/2 PCMC - ARROW (MRI)
  • BRAIN: ARNOLD CHIARI MALFORMATION; 1/3 T2 (MRI)
    BRAIN: ARNOLD CHIARI MALFORMATION; 1/3 T2 (MRI)
  • BRAIN: ARNOLD CHIARI MALFORMATION; 1/3 - ARROW T2 (MRI)
    BRAIN: ARNOLD CHIARI MALFORMATION; 1/3 - ARROW T2 (MRI)
  • BRAIN: ARNOLD CHIARI MALFORMATION; 2/3 T2 (MRI)
    BRAIN: ARNOLD CHIARI MALFORMATION; 2/3 T2 (MRI)

References

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