File:Acute right MCA M1 occlusion (Radiopaedia 62268-70455 Axial Cerebral blood volume (mL-100mL) 3).jpg

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Acute_right_MCA_M1_occlusion_(Radiopaedia_62268-70455_Axial_Cerebral_blood_volume_(mL-100mL)_3).jpg ‎(512 × 512 pixels, file size: 199 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 62268
  • Image ID: 41600099
  • Image stack position: 3/5
  • Plane projection: Axial
  • Aux modality: Cerebral blood volume (mL-100mL)
  • Study description: CT perfusion analysis
  • Study findings: CT perfusion maps demonstrated reduced cerebral blood flow (CBF) and volume (CBV), and increased mean transit time (MTT) and Tmax in the ischemic region. The relative size of the infarct core and penumbra, and the potential recuperation ratio (PRR) was also calculated, demonstrating a relatively low value (40%), an indicator of unfavorable prognosis. However, based on the good ASPECTS score (8) and mCTA collateral score (4), the patient was nevertheless selected and admitted for urgent mechanical thrombectomy which was successfully performed.
  • Modality: CT
  • System: Central Nervous System
  • Findings: The noncontrast CT of the head demonstrated no intracranial hemorrhage, however an extensive hyperdense MCA sign was observed beginning in the M1 segment of the right MCA (see key image). An accompanying reduced density of the head of the right caudate nucleus and the right lentiform nucleus can be observed, when compared to the unaffected contralateral side (see rewindowed key images) corresponding to an ASPECTS score of 8. Incidentally, extensive calcification can be observed along the falx cerebri.
Date Published: 10th Aug 2018
Source https://radiopaedia.org/cases/acute-right-mca-m1-occlusion
Author Balint Botz
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

Licensing:

Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

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current06:02, 19 April 2021Thumbnail for version as of 06:02, 19 April 2021512 × 512 (199 KB)Fæ (talk | contribs)Radiopaedia project rID:62268 (batch #1087-8 B3)

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