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Hirohito Kan

Explore the profile of Hirohito Kan including associated specialties, affiliations and a list of published articles. Areas
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Articles 51
Citations 344
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Recent Articles
1.
Taoka T, Iwamoto K, Miyata S, Ito R, Nakamichi R, Nakane T, et al.
Magn Reson Med Sci . 2025 Feb; PMID: 39924214
Purpose: The purpose of this study was to assess the extent to which improvement in sleep with lemborexant contributed to changes in interstitial fluid dynamics. Methods: The 3 methods including...
2.
Kan H, Nakashima M, Tsuchiya T, Yamada M, Hiwatashi A
Radiol Phys Technol . 2025 Jan; 18(1):320-328. PMID: 39760974
This study aimed to investigate the cause of susceptibility underestimation in body quantitative susceptibility mapping (QSM) and propose a water/fat separate reconstruction to address this issue. A numerical simulation was...
3.
Shibata H, Uchida Y, Kan H, Sakurai K, Madokoro Y, Iwano S, et al.
J Alzheimers Dis . 2024 Nov; 103(1):293-304. PMID: 39584366
Background: Quantitative susceptibility mapping (QSM) is pivotal for analyzing neurodegenerative diseases. However, accurate hippocampal segmentation remains a challenge. Objective: This study introduces a method for extracting hippocampal magnetic susceptibility values...
4.
Nakashima M, Kan H, Kawai T, Matsumoto K, Kawaguchi T, Uchida Y, et al.
Parkinsonism Relat Disord . 2024 Sep; 128:107135. PMID: 39278120
Introduction: To apply susceptibility separation on quantitative susceptibility mapping (QSM) images of Parkinson's disease (PD) patients to obtain more accurate images and gain pathophysiological insights. Methods: This retrospective study included...
5.
Isumi S, Futamura D, Hanasaki T, Sako Y, Miyata S, Kan H, et al.
Neuroimage . 2024 Aug; 298:120791. PMID: 39147291
Strokes cause spasticity via stretch reflex hyperexcitability in the spinal cord, and spastic paralysis due to involuntary muscle contraction in the hands and fingers can severely restrict skilled hand movements....
6.
Kan H, Uchida Y, Kawaguchi S, Kasai H, Hiwatashi A, Ueki Y
Neuroimage . 2024 Jun; 296:120676. PMID: 38852804
To separate the contributions of paramagnetic and diamagnetic sources within a voxel, a magnetic susceptibility source separation method based solely on gradient-echo data has been developed. To measure the opposing...
7.
Shibukawa S, Kan H, Honda S, Wada M, Tarumi R, Tsugawa S, et al.
Transl Psychiatry . 2024 Mar; 14(1):164. PMID: 38531856
Quantitative susceptibility mapping is a magnetic resonance imaging technique that measures brain tissues' magnetic susceptibility, including iron deposition and myelination. This study examines the relationship between subcortical volume and magnetic...
8.
Kawaguchi S, Kan H, Uchida Y, Kasai H, Hiwatashi A, Ueki Y
Magn Reson Imaging . 2024 Feb; 109:83-90. PMID: 38387713
The R1 (1/T1) map divided by the T2* map (R1/T2* map) draws attention as a high-resolution myelin-related map. However, both R1 and R2* (1/T2*) values demonstrate anisotropy dependent on the...
9.
Uchida Y, Kan H, Kano Y, Onda K, Sakurai K, Takada K, et al.
Stroke . 2024 Jan; 55(4):1041-1050. PMID: 38269537
Background: Combined quantitative susceptibility mapping and R2* relaxometry can distinguish iron and myelin components in ischemic lesions. We aimed to investigate whether longitudinal changes in magnetic susceptibility and R2* values...
10.
Maki H, Mori-Yoshimura M, Matsuda H, Hashimoto Y, Ota M, Kimura Y, et al.
AJNR Am J Neuroradiol . 2023 Nov; 44(12):1405-1410. PMID: 37945525
Background And Purpose: Although various neuropsychological problems in Becker muscular dystrophy have attracted attention, there have been few related neuroimaging studies. We investigated brain abnormalities in patients with Becker muscular...