Sub-estudio de Neuroimagen del Proyecto Atahualpa.

Translated title of the contribution: Neuroimaging substudy of the atahualpa Project

Oscar H.Del Brutto, Victor J.Del Brutto, Julio Lama

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The Atahualpa Project includes a Neuroimaging sub-study, which consists in the practice of MRIs and MRAs to all participants aged ≥60 years, as well as those presenting with specific neurological complains. Likewise, all participants aged ≥20 years have been invited for the practice of a head CT. MRIs and MRAs have been performed with the use of a Philips Intera 1.5T MRI machine, and TCs with the use of a Philips Brilliance 64 CT scanner, following established protocols. All exams have been independently reviewed by a neurologist and a neuroradiologist, with adequate kappa coefficients for inter-rater agreement. MRIs studies have been focused on the evaluation of global cortical atrophy, posterior parietal atrophy, bicaudate index, Evans index, hippocampal atrophy, signatures of cerebral small vessel disease, and lesions consistent with ischemic or hemorrhagic strokes. By the use of MRI, we have assessed the prevalence of intracranial artery stenosis, intracranial dolichoectasia and variations in the configuration of the circle of Willis. Using CT, we have focused on the diagnosis of neurocysticercosis, pineal gland calcifications, as well as in variations and characteristics of skull bones, cerebellar atrophy, and severity of carotid siphon calcifications. In the present study, we focused on the description of basic protocols used for assessment of previously mentioned lesions of interest.

Translated title of the contributionNeuroimaging substudy of the atahualpa Project
Original languageSpanish
Pages (from-to)111-127
Number of pages17
JournalRevista Ecuatoriana de Neurologia
Issue number2
StatePublished - 2017
Externally publishedYes


  • Angio-Resonancia
  • Atahualpa
  • Ecuador
  • EpidemiologíA
  • Estudio Poblacional
  • Resonancia MagnéTica
  • TomografíA Computada

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology


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