MRI and SPECT Relationship in Lesion Localization of Aphasics | 2000, Volume 6 - Issue 4

A. ATCI¹, B. YÜRÜTEN¹, G. TAŞTEKİN², S. AÇIKGÖZOĞLU³, S. İLHAN¹

¹Selçuk Üniversitesi Tıp Fakültesi, Nöroloji Anabilim Dalı
²Selçuk Üniversitesi Tıp Fakültesi, Nükleer Tıp Anabilim Dalı
³Selçuk Üniversitesi Tıp Fakültesi, Radyoloji Anabilim Dalı

Keywords: Aphasia, Magnetic Resonance lmaging (MRI), brain SPECT, HMPAO

Abstract

We investigated 30 stroke patients with aphasia in order to evaluate the relationshipbetween the clinical findings and structural/functional lesion sites. Language evaluationswith Gülhane aphasia test (GAT), magnetic resonance imaging (MRI) and single photon emission computed tomography (SPECT) seans were performed. GAT revealed that we had 12 global, 8 Broca, 4 Wernicke, 3 anomic, 1 transcortical motor, 1 transcortical sensory, 1 subcortical aphasia patients. When we compared the structural and functionallesion sites on MRI and SPECT with clinical findings, we observed diffirent localizations including subcortical ones along with clasically know localizations. We interpreted the cortical hypoperfusion on SPECT related to the subcortical areas on MRI as "diaschisis". When we compared the lesion size on MRI and SPECT, we found that the functional lesionsize was greater than the structural one. So the differences between the aphasia types might be related to this finding.