Yangsean Choi on Muck Rack

Yangsean Choi

As seen in: Nature, PLOS ONE, Academic Radiology
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Articles

Post-gadolinium T1 alterations in Parkinson's disease and essential tremor

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By Junsung Kim, Eunseon Jeong, Yangsean Choi, Yoonho Nam, Ho Sung Kim, Sungyang Jo, Sun Ju Chung
| Nature Verified
Abstract Post-contrast T1 changes (ΔT1) on brain MRI may reflect alterations in cerebrospinal fluid dynamics and microvascular exchange in movement disorders. We investigated regional post-contrast ΔT1 differences in patients with idiopathic Parkinson’s disease (IPD) and essential tremor (ET).
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Day-night variation and age-related differences in gadolinium-based contrast media enhancement in the brain: A T1 mapping study

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By Dongjun Lee, Yangsean Choi, Eunseon Jeong
| PLOS ONE
Loading metrics Open Access Peer-reviewed Research Article Citation: Lee D, Choi Y, Jeong E, Nam Y, Jo S, Chung SJ, et al. (2026) Day–night variation and age-related differences in gadolinium-based contrast media enhancement in the brain: A T1 mapping study. PLoS One 21(4): e0346730. https://doi.org/10.1371/journal.pone.0346730 Editor: Assoc. Prof.
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Neuromelanin imaging outperforms free water imaging in diagnosing early Parkinson’s disease: a comparative MRI study - npj Parkinson's Disease

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By Yun Hwa Roh, Jinyoung Youn, Sang-Young Kim, Hwan Heo, Soohwa Song, Eung Yeop Kim, Yangsean Choi, Sun Ju Chung, Sungyang Jo, Beomseok Sohn, Jeongwon Jo
| Nature Verified
Abstract Early and accurate diagnosis of Parkinson’s disease (PD) remains challenging due to reliance on clinical assessment of motor symptoms. This retrospective study compared the diagnostic performance of neuromelanin (NM)-sensitive MRI and free water (FW) imaging in 247 patients with early PD and 78 controls from a single tertiary center, with independent external validation in a separate cohort acquired at another institution.
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