S P Chung1, H S Chung, S Ryu, S Rhu, S W Kim, I S Yoo, J Kim, C J Song. 1. Department of Emergency Medicine, Yongdong Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea Seoul, Republic of Korea. emstar@naver.com
Abstract
BACKGROUND: The purpose of this study was to evaluate the usefulness of a particular magnetic resonance imaging technique known as primary diffusion weighted imaging (DWI) for patients with lacunar syndrome in the emergency department (ED). METHODS: Patients with one of five classic lacunar syndromes underwent DWI as primary imaging modality. The DWI findings were classified into groups: (a) having a lesion with high signal intensity, (b) having a lesion with mixed signal intensity, and (c) unremarkable. The final clinical diagnoses were extracted from the patients' medical records, and used as a reference standard. RESULTS: Of 151 DWI images, 120 (79%) were interpreted as high signal lesions, 21 (14%) as mixed signal lesions, and 10 (7%) as unremarkable. All patients with high signal lesions or unremarkable findings were diagnosed with ischaemic stroke. The patients with mixed signal lesions were diagnosed with haemorrhagic stroke with an exception of one ischaemic stroke. CONCLUSION: Primary DWI is a feasible and useful neuroimaging tool for patients with lacunar syndrome in the ED.
BACKGROUND: The purpose of this study was to evaluate the usefulness of a particular magnetic resonance imaging technique known as primary diffusion weighted imaging (DWI) for patients with lacunar syndrome in the emergency department (ED). METHODS:Patients with one of five classic lacunar syndromes underwent DWI as primary imaging modality. The DWI findings were classified into groups: (a) having a lesion with high signal intensity, (b) having a lesion with mixed signal intensity, and (c) unremarkable. The final clinical diagnoses were extracted from the patients' medical records, and used as a reference standard. RESULTS: Of 151 DWI images, 120 (79%) were interpreted as high signal lesions, 21 (14%) as mixed signal lesions, and 10 (7%) as unremarkable. All patients with high signal lesions or unremarkable findings were diagnosed with ischaemic stroke. The patients with mixed signal lesions were diagnosed with haemorrhagic stroke with an exception of one ischaemic stroke. CONCLUSION: Primary DWI is a feasible and useful neuroimaging tool for patients with lacunar syndrome in the ED.
Authors: H Ay; J Oliveira-Filho; F S Buonanno; M Ezzeddine; P W Schaefer; G Rordorf; L H Schwamm; R G Gonzalez; W J Koroshetz Journal: Stroke Date: 1999-12 Impact factor: 7.914
Authors: Mark E Mullins; Pamela W Schaefer; A Gregory Sorensen; Elkan F Halpern; Hakan Ay; Julian He; Walter J Koroshetz; R Gilberto Gonzalez Journal: Radiology Date: 2002-08 Impact factor: 11.105
Authors: Peter Schramm; Peter D Schellinger; Jochen B Fiebach; Sabine Heiland; Olav Jansen; Michael Knauth; Werner Hacke; Klaus Sartor Journal: Stroke Date: 2002-10 Impact factor: 7.914