Original Paper Received: April 9, 2014 Accepted: July 29, 2014 Published online: October 29, 2014
Cerebrovasc Dis 2014;38:219–225 DOI: 10.1159/000366264
Diffusion-Weighted Lesions in Stroke Patients with Transient Symptoms – Where Are They Located? Christopher Elnan Kvistad a, c Nicola Logallo a Lars Thomassen a, c Gunnar Moen b Ulrike Waje-Andreassen a Halvor Naess a, d
Departments of a Neurology and b Radiology, Haukeland University Hospital, c Department of Clinical Medicine, University of Bergen, Bergen, and d Centre of Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
Abstract Background: MR diffusion-weighted imaging (DWI) has revolutionized neuroimaging and contributed to a tissue-based redefinition of transient ischemic attack (TIA). Stroke patients with DWI lesions may have neurological symptoms that resolve completely within 24 h, suggesting successful vessel recanalization. Prior studies of stroke patients with transient symptoms have not found any predilection for DWI lesions in any specific territory. Other studies have, however, reported an association between higher brain dysfunction and presence of DWI lesions in patients with transient ischemic symptoms, suggesting a high rate of cortical affection in these patients. We sought to see whether DWI location in stroke patients with transient symptoms
Cerebrovasc Dis 2014;38:219–225 DOI: 10.1159/000366264
Diffusion-Weighted Lesions in Stroke Patients with Transient Symptoms – Where Are They Located? Christopher Elnan Kvistad a, c Nicola Logallo a Lars Thomassen a, c Gunnar Moen b Ulrike Waje-Andreassen a Halvor Naess a, d
Departments of a Neurology and b Radiology, Haukeland University Hospital, c Department of Clinical Medicine, University of Bergen, Bergen, and d Centre of Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
Abstract Background: MR diffusion-weighted imaging (DWI) has revolutionized neuroimaging and contributed to a tissue-based redefinition of transient ischemic attack (TIA). Stroke patients with DWI lesions may have neurological symptoms that resolve completely within 24 h, suggesting successful vessel recanalization. Prior studies of stroke patients with transient symptoms have not found any predilection for DWI lesions in any specific territory. Other studies have, however, reported an association between higher brain dysfunction and presence of DWI lesions in patients with transient ischemic symptoms, suggesting a high rate of cortical affection in these patients. We sought to see whether DWI location in stroke patients with transient symptoms
