Yohei Koizumi

4.0k total citations
93 papers, 1.3k citations indexed

About

Yohei Koizumi is a scholar working on Hepatology, Epidemiology and Surgery. According to data from OpenAlex, Yohei Koizumi has authored 93 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 65 papers in Hepatology, 56 papers in Epidemiology and 28 papers in Surgery. Recurrent topics in Yohei Koizumi's work include Liver Disease Diagnosis and Treatment (52 papers), Hepatocellular Carcinoma Treatment and Prognosis (37 papers) and Liver Disease and Transplantation (31 papers). Yohei Koizumi is often cited by papers focused on Liver Disease Diagnosis and Treatment (52 papers), Hepatocellular Carcinoma Treatment and Prognosis (37 papers) and Liver Disease and Transplantation (31 papers). Yohei Koizumi collaborates with scholars based in Japan, Singapore and Egypt. Yohei Koizumi's co-authors include Masashi Hirooka, Yoichi Hiasa, Masanori Abe, Bunzo Matsuura, Morikazu Onji, Hironori Ochi, Yoshio Tokumoto, Atsushi Hiraoka, Osamu Yoshida and Yoshiyasu Kisaka and has published in prestigious journals such as PLoS ONE, Hepatology and The Journal of Clinical Endocrinology & Metabolism.

In The Last Decade

Yohei Koizumi

89 papers receiving 1.3k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Yohei Koizumi Japan	19	901	887	282	158	147	93	1.3k
Anna Pecorelli Italy	14	668 0.7×	664 0.7×	159 0.6×	143 0.9×	117 0.8×	44	1.1k
Ki Tae Yoon South Korea	19	767 0.9×	744 0.8×	267 0.9×	157 1.0×	83 0.6×	77	1.2k
Kunihiko Tsuji Japan	20	775 0.9×	1.2k 1.3×	237 0.8×	211 1.3×	135 0.9×	61	1.5k
Young‐Joo Jin South Korea	20	621 0.7×	744 0.8×	288 1.0×	159 1.0×	125 0.9×	78	1.1k
Hironori Ochi Japan	23	669 0.7×	873 1.0×	839 3.0×	188 1.2×	147 1.0×	95	1.7k
Tomokazu Kawaoka Japan	25	1.2k 1.3×	1.6k 1.7×	352 1.2×	281 1.8×	200 1.4×	150	2.1k
Bruno Lapuyade France	14	925 1.0×	718 0.8×	308 1.1×	286 1.8×	46 0.3×	31	1.4k
Yoshitaka Takuma Japan	16	680 0.8×	699 0.8×	285 1.0×	60 0.4×	61 0.4×	31	1.0k
Takahide Nakazawa Japan	20	691 0.8×	1.1k 1.2×	327 1.2×	157 1.0×	131 0.9×	60	1.4k
Joon Hyoek Lee South Korea	19	733 0.8×	1.1k 1.3×	573 2.0×	207 1.3×	89 0.6×	45	1.5k

Countries citing papers authored by Yohei Koizumi

Since Specialization

Citations

This map shows the geographic impact of Yohei Koizumi's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Yohei Koizumi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yohei Koizumi more than expected).

Fields of papers citing papers by Yohei Koizumi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Yohei Koizumi. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Yohei Koizumi. The network helps show where Yohei Koizumi may publish in the future.

Co-authorship network of co-authors of Yohei Koizumi

This figure shows the co-authorship network connecting the top 25 collaborators of Yohei Koizumi. A scholar is included among the top collaborators of Yohei Koizumi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Yohei Koizumi. Yohei Koizumi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Kumada, Takashi, Sadanobu Ogawa, Hidenori Toyoda, et al.. (2024). Comparison Between Attenuation Measurement and the Controlled Attenuation Parameter for the Assessment of Hepatic Steatosis Based on MRI Images. Liver International. 45(1). e16210–e16210. 4 indexed citations

Imai, Yusuke, Yohei Koizumi, Yoichi Hiasa, et al.. (2024). Standard technique in Japan for measuring hepatic venous pressure gradient. Journal of Gastroenterology. 60(1). 24–31. 1 indexed citations

Takahashi, Yoshiki, Tetsuya Wakayama, Atsushi Nozaki, et al.. (2023). Comparisons of Hepatobiliary Phase Imaging Using Combinations of Parallel Imaging and Variable Degrees of Compressed Sensing With Use of Parallel Imaging Alone. Journal of Computer Assisted Tomography. 47(4). 524–529.

Hirooka, Masashi, Yohei Koizumi, Yoshiko Nakamura, et al.. (2023). B-mode shear wave elastography can be an alternative method to vibration-controlled transient elastography according to a moderate-scale population study. Journal of Medical Ultrasonics. 50(4). 473–483. 2 indexed citations

Abe, Masanori, Yoshiko Nakamura, Teruki Miyake, et al.. (2023). Role of B Cell-Activating Factor in Fibrosis Progression in a Murine Model of Non-Alcoholic Steatohepatitis. International Journal of Molecular Sciences. 24(3). 2509–2509. 8 indexed citations

Miyake, Teruki, Shinya Furukawa, Bunzo Matsuura, et al.. (2022). Combined evaluation of Fibrosis‐4 index and fatty liver for stratifying the risk for diabetes mellitus. Journal of Diabetes Investigation. 13(9). 1577–1584. 1 indexed citations

Miyake, Teruki, Bunzo Matsuura, Shinya Furukawa, et al.. (2022). Fatty liver with metabolic disorder, such as metabolic dysfunction‐associated fatty liver disease, indicates high risk for developing diabetes mellitus. Journal of Diabetes Investigation. 13(7). 1245–1252. 12 indexed citations

Miyake, Teruki, Shinya Furukawa, Bunzo Matsuura, et al.. (2022). Plasma Fatty Acid Composition Is Associated with Histological Findings of Nonalcoholic Steatohepatitis. Biomedicines. 10(10). 2540–2540. 10 indexed citations

Hirooka, Masashi, Takaaki Tanaka, Yohei Koizumi, et al.. (2021). Measurement of multiple spleen lengths is not necessary for non‐invasive prediction of high‐risk esophagogastric varices. Hepatology Research. 52(2). 187–198. 2 indexed citations

10.

Miyake, Teruki, Bunzo Matsuura, Shinya Furukawa, et al.. (2021). Nonalcoholic fatty liver disease is a risk factor for glucose intolerance onset in men regardless of alanine aminotransferase status. Journal of Diabetes Investigation. 12(10). 1890–1898. 3 indexed citations

11.

Koizumi, Yohei, Masashi Hirooka, Takaaki Tanaka, et al.. (2021). Noninvasive ultrasound technique for assessment of liver fibrosis and cardiac function in Fontan-associated liver disease: diagnosis based on elastography and hepatic vein waveform type. Journal of Medical Ultrasonics. 48(2). 235–244. 5 indexed citations

12.

Tanaka, Takaaki, Masashi Hirooka, Yohei Koizumi, et al.. (2021). Development of a method for measuring spleen stiffness by transient elastography using a new device and ultrasound-fusion method. PLoS ONE. 16(2). e0246315–e0246315. 12 indexed citations

13.

Hirooka, Masashi, Yohei Koizumi, Takaaki Tanaka, et al.. (2020). Efficacy of combining electric‐field and coronal‐plane imaging to obtain ultrasound–ultrasound fusion images in monopolar radiofrequency ablation for patients with liver cancer. Hepatology Research. 50(8). 985–995. 4 indexed citations

14.

Hirooka, Masashi, Yohei Koizumi, Takaaki Tanaka, et al.. (2020). Dilatation of lymphatic vessels increases liver stiffness on transient elastography irrespective of fibrosis. Hepatology Research. 51(3). 284–293. 2 indexed citations

15.

Hirooka, Masashi, Yohei Koizumi, Takaaki Tanaka, et al.. (2020). Treatment on the Spleen Prevents the Progression of Secondary Sarcopenia in Patients With Liver Cirrhosis. Hepatology Communications. 4(12). 1812–1823. 6 indexed citations

16.

Koizumi, Yohei, Masashi Hirooka, Nobuharu Tamaki, et al.. (2019). New diagnostic technique to evaluate hepatic steatosis using the attenuation coefficient on ultrasound B mode. PLoS ONE. 14(8). e0221548–e0221548. 33 indexed citations

17.

Imai, Yusuke, Osamu Yoshida, Takao Watanabe, et al.. (2019). Stimulated hepatic stellate cell promotes progression of hepatocellular carcinoma due to protein kinase R activation. PLoS ONE. 14(2). e0212589–e0212589. 16 indexed citations

18.

Tamaki, Nobuharu, Yohei Koizumi, Masashi Hirooka, et al.. (2018). Novel quantitative assessment system of liver steatosis using a newly developed attenuation measurement method. Hepatology Research. 48(10). 821–828. 74 indexed citations

19.

Hirooka, Masashi, Yohei Koizumi, Teruki Miyake, et al.. (2017). Nonalcoholic fatty liver with a hepatic arterial buffer response strongly associated with future metabolic disease. Hepatology Communications. 1(7). 623–633. 4 indexed citations

20.

Koizumi, Yohei, Masashi Hirooka, Hironori Ochi, et al.. (2012). Hepatocellular carcinoma in a chronic hepatitis C patient 15 years after achieving a sustained virological response. Kanzo. 53(11). 763–768. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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