Article Text

PDF
PAW22 Does cortical atrophy take place after basal ganglia damage in multiple system atrophy and progressive supranuclear palsy?
  1. C Guevara1,2,3,
  2. N Deasy1,2,3,
  3. C A Payan1,2,3,
  4. J Jarosz1,2,3,
  5. Y Agid1,2,3,
  6. P N Leigh1,2,3,
  7. A Ludolph1,2,3,
  8. M J Kempton1,2,3,
  9. G Barker1,2,3,
  10. G Bensimon1,2,3
  1. 1King's College London, London, UK
  2. 2Pitié-Salpêtrière University Hospital, Paris, France
  3. 3Neurologische Klinik, Ulm, Germany
  1. Correspondence to carlos.guevara{at}kcl.ac.uk

Abstract

Magnetic resonance imaging (MRI) has the potential to aid characterise of disease progression in multiple system atrophy (MSA) and progressive supranuclear palsy (PSP).

Methods Six patients with probable MSA (mean age (years±SD) was 61±10.4) and 7 with PSP (64.7±5.9 years) according to NNIPPS criteria were prospectively recruited for MRI scanning at King's College Hospital. Illness duration at baseline was 5.6±2 (MSA) and 3.72±2.6 (PSP), and at follow-up 8.29±1.7 and 6.58±2.7, respectively; assessment intervals were 2.6±0.2 (MSA) and 2.8±0.3. SIENA was used to estimate local and global brain volume change between MRI at each timepoint, by co-registering and segmenting the images and calculating displacement of the brain/nonbrain boundary.

Results Annual global brain atrophy was 1.27±0.6% (MSA) and 1.5±0.7% (PSP). In PSP, localised grey matter atrophy was detected in left superior temporal gyrus, right parahippocampal gyrus, left nucleus dentate, left cerebellar tonsil and right semilunar cerebellum. In MSA, left superior, middle frontal gyrus and right frontopolar regions were affected.

Discussion Progressive atrophy was found in frontal and temporal cortices in both disorders; the absence of change in striatum and pallidum may reflect already severely damage at baseline.

Statistics from Altmetric.com

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.