著者

郡 倫一

出版者

公益社団法人 日本放射線技術学会

雑誌

日本放射線技術学会雑誌 (ISSN:03694305)

巻号頁・発行日

vol.77, no.10, pp.1203-1208, 2021 (Released:2021-10-20)

参考文献数

17

被引用文献数

1

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Background: The lesions caused by brainstem infarction are usually small. Therefore, it is often difficult to diagnose them using axial diffusion-weighted imaging (axial DWI). The purpose of this study was to evaluate the usefulness of thin-slice gapless coronal DWI in acute brainstem infarction diagnosis by difference of elapsed time from the onset of cerebral infarction. Methods: Axial DWI and coronal DWI were performed in 90 patients (mean age: 70.0±12.5 years) with acute brainstem infarction. Patients were classified into four groups according to the elapsed time after the onset of brainstem infarction: <3 h (group A), 3–10 h (group B), 10–30 h (group C), and ≥30 h (group D). We compared axial DWI and coronal DWI in terms of visual evaluation score, apparent diffusion coefficient (ADC) value, and contrast in the four groups. Results: The visual evaluation scores were significantly higher using coronal DWI in groups A, B, and C than in group D. The ADC values in groups C and D were significantly higher in coronal DWI. The contrast in groups C and D was significantly higher in coronal DWI. Conclusion: Coronal DWI is especially useful for acute brainstem infarction diagnosis within 30 hours of its onset.