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J Korean Soc Emerg Med > Volume 15(1); 2004 > Article
Journal of The Korean Society of Emergency Medicine 2004;15(1): 8-13.
Efficacy of Diffusion-weighted Magnetic Resonance Imaging in the Emergency Department to an Intracerebral Hemorrhage
Jung Soo Park, Yeon Ho You, Sung Soo Park, Jung Kyu Park, Hun Kim, Sung Pil Chung, Seung Whan Kim, In Sool Yoo
Department of Emergency Medicine, College of Medicine, Chungnam National University, Korea. emstar@naver.com
This study was designed to evaluate whether diffusion-weighted imaging (DWI) showed characteristic features in patients with an intracerebral hemorrhage (ICH), as well as a cerebral infarction, and whether the volume of hemorrhage was measured accurately on the DWI. MATERIALS AND METHOD: Patients with an ICH who underwent DWI and computed tomography (CT) were enrolled in this study. The DWI findings were categorized as follows: type A (lesions with a mixed-signal intense core), type B (lesions with a low-signal intense core), and type C (otherlesions). The time interval between symptom onset and DWI was compared among types of DWI findings. We compared the volumes of the hematomas between CT and DWI.
Thirty-seven patients were classified as type A (27 cases), type B (9), and type C (1). The average time interval was significantly different between type A and type B (4.97 vs 41.89 hrs). The differences between the measured mean volumes of the hemorrhages between CT and DWI were not statistically different (12.7 vs 12.4 ml)
This study suggested that DWI could differentiate ICH from ischemic stroke and could accurately measure the hemorrhagic volume, as well. Thus, it can be used as a primary diagnostic tool of stroke in the emergency department.
Key words: Diffusion magnetic resonance imaging, Intracranial hemorrhage, Cerebral infarction
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