Kei Ichiji

422 total citations
47 papers, 298 citations indexed

About

Kei Ichiji is a scholar working on Radiology, Nuclear Medicine and Imaging, Radiation and Artificial Intelligence. According to data from OpenAlex, Kei Ichiji has authored 47 papers receiving a total of 298 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Radiology, Nuclear Medicine and Imaging, 17 papers in Radiation and 15 papers in Artificial Intelligence. Recurrent topics in Kei Ichiji's work include Advanced Radiotherapy Techniques (17 papers), Lung Cancer Diagnosis and Treatment (11 papers) and Radiomics and Machine Learning in Medical Imaging (10 papers). Kei Ichiji is often cited by papers focused on Advanced Radiotherapy Techniques (17 papers), Lung Cancer Diagnosis and Treatment (11 papers) and Radiomics and Machine Learning in Medical Imaging (10 papers). Kei Ichiji collaborates with scholars based in Japan, Czechia and United States. Kei Ichiji's co-authors include Noriyasu Homma, Makoto Yoshizawa, Xiaoyong Zhang, Norihiro Sugita, Yusuke Kawasumi, Ivo Bukovský, Yoshihiro Takai, Tadashi Ishibashi, Shintaro Suzuki and Makoto Abe and has published in prestigious journals such as SHILAP Revista de lepidopterología, Scientific Reports and Physics in Medicine and Biology.

In The Last Decade

Kei Ichiji

40 papers receiving 285 citations

Peers

Countries citing papers authored by Kei Ichiji

Since Specialization

Citations

This map shows the geographic impact of Kei Ichiji'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 Kei Ichiji with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kei Ichiji more than expected).

Fields of papers citing papers by Kei Ichiji

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kei Ichiji. 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 Kei Ichiji. The network helps show where Kei Ichiji may publish in the future.

Co-authorship network of co-authors of Kei Ichiji

This figure shows the co-authorship network connecting the top 25 collaborators of Kei Ichiji. A scholar is included among the top collaborators of Kei Ichiji 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 Kei Ichiji. Kei Ichiji 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

#	Work	Indexed citations
1	Reproducible Machine Learning-Based Voice Pathology Detection: Introducing the Pitch Difference Feature 2025 ·Journal of Voice ·(unknown), (unknown), (unknown), Laura Verde, (unknown), (unknown), Kei Ichiji, (unknown), Zdeňka Sedláková, (unknown), Martin Chovanec, (unknown), Noriyasu Homma	0
2	Vision Transformer-Based Breast Mass Diagnosis in Mammography Using Bilateral Information 2024 ·Tianyu Zeng, Zhang Zhang, (unknown), Xiaoyong Zhang, Kei Ichiji, Noriyasu Homma	0
3	Inconsistency between Human Observation and Deep Learning Models: Assessing Validity of Postmortem Computed Tomography Diagnosis of Drowning 2024 ·Journal of Imaging Informatics in Medicine ·(unknown), Xiaoyong Zhang, Jiaoyang Wang, Akihito Usui, Kei Ichiji, Ivo Bukovský, Shuo‐Yan Chou, Masato Funayama, Noriyasu Homma	1
4	How intra-source imbalanced datasets impact the performance of deep learning for COVID-19 diagnosis using chest X-ray images 2023 ·Scientific Reports ·Zhang Zhang, Xiaoyong Zhang, Kei Ichiji, Ivo Bukovský, Noriyasu Homma	4
5	Risk Analysis of Breast Cancer by Using Bilateral Mammographic Density Differences: A Case-Control Study 2023 ·The Tohoku Journal of Experimental Medicine ·Zhang Zhang, Xiaoyong Zhang, Jiaqi Chen, (unknown), (unknown), Naoko Mori, Kei Ichiji, Katsuaki Kato, (unknown), Akiko Ebata, Minoru Miyashita, Takanori Ishida, Noriyasu Homma	0
6	Assessment of a computed tomography-based radiomics approach for assessing lung function in lung cancer patients 2022 ·Physica Medica ·(unknown), Noriyuki Kadoya, (unknown), (unknown), (unknown), Shohei Tanaka, (unknown), Kei Ichiji, Takaya Yamamoto, Hisanori Ariga, Keiichi Jingu	7
7	Improved Tumor Image Estimation in X-Ray Fluoroscopic Images by Augmenting 4DCT Data for Radiotherapy 2022 ·Journal of Advanced Computational Intelligence and Intelligent Informatics ·(unknown), Kei Ichiji, Jiaoyang Wang, Noriyasu Homma, Xiaoyong Zhang, Norihiro Sugita, Makoto Yoshizawa	1
8	Human ability enhancement for reading mammographic masses by a deep learning technique 2020 ·Noriyasu Homma, (unknown), Xiaoyong Zhang, (unknown), Kei Ichiji, Ivo Bukovský, Akiko Satô, Naoko Mori	2
9	Hidden Markov Model-based Extraction of Target Objects in X-ray Image Sequence for Lung Radiation Therapy 2019 ·IEEJ Transactions on Electronics Information and Systems ·(unknown), Kei Ichiji, Noriyasu Homma, Xiaoyong Zhang, (unknown), Norihiro Sugita, (unknown), (unknown), Makoto Yoshizawa	1
10	A Deep Learning-based Computer-aided Diagnosis System for Mammographic Lesion Detection 2018 ·Transactions of the Society of Instrument and Control Engineers ·Shintaro Suzuki, Xiaoyong Zhang, Noriyasu Homma, Kei Ichiji, (unknown), (unknown), Yusuke Kawasumi, Tadashi Ishibashi, Makoto Yoshizawa	2
11	A key-point based real-time tracking of lung tumor in x-ray image sequence by using difference of Gaussians filtering and optical flow 2018 ·Physics in Medicine and Biology ·Kei Ichiji, Yusuke Yoshida, Noriyasu Homma, Xiaoyong Zhang, Ivo Bukovský, Y. Takai, Makoto Yoshizawa	7
12	Dosimetric evaluation of MLC-based dynamic tumor tracking radiotherapy using digital phantom: Desired setup margin for tracking radiotherapy 2017 ·Medical dosimetry ·Noriyuki Kadoya, Kei Ichiji, (unknown), Y. Nakajima, (unknown), (unknown), Xiaoyong Zhang, Ivo Bukovský, Takaya Yamamoto, Ken Takeda, Yoshihiro Takai, Keiichi Jingu, Noriyasu Homma	3
13	A Design of User-oriented Sensor Network for Effective Monitoring of Health Condition of Many Subjects 2016 ·IEICE Technical Report; IEICE Tech. Rep. ·(unknown), Kei Ichiji, (unknown), Takuo Suganuma	1
14	Target Extraction from X-ray Image Sequence by using Gaussian Mixture Model for Lung Tumor Tracking 2015 ·IEICE technical report. Speech ·(unknown), Kei Ichiji, Yusuke Yoshida, Xiaoyang Zhang, Noriyasu Homma, (unknown), Makoto Yoshizawa	2
15	Tumor motion tracking using kV/MV X-ray fluoroscopy for adaptive radiation therapy 2015 ·Xiaoyong Zhang, Noriyasu Homma, Kei Ichiji, Makoto Abe, Norihiro Sugita, Ivo Bukovský, Yoshihiro Takai, Makoto Yoshizawa	0
16	Tracking tumor boundary in MV‐EPID images without implanted markers: A feasibility study 2015 ·Medical Physics ·Xiaoyong Zhang, Noriyasu Homma, Kei Ichiji, Yoshihiro Takai, Makoto Yoshizawa	20
17	A Fast Neural Network Approach to Predict Lung Tumor Motion during Respiration for Radiation Therapy Applications 2015 ·BioMed Research International ·Ivo Bukovský, Noriyasu Homma, Kei Ichiji, (unknown), (unknown), (unknown), Jiří Bíla	24
18	A kernel-based method for markerless tumor tracking in kV fluoroscopic images 2014 ·Physics in Medicine and Biology ·Xiaoyong Zhang, Noriyasu Homma, Kei Ichiji, Makoto Abe, Norihiro Sugita, Yoshihiro Takai, Yuichiro Narita, Makoto Yoshizawa	23
19	Respiratory motion prediction for tumor following radiotherapy by using time-variant seasonal autoregressive techniques 2012 ·PubMed ·Kei Ichiji, Naofumi Homma, Masao Sakai, Y. Takai, Yuichiro Narita, Makoto Abe, Norihiro Sugita, Makoto Yoshizawa	3
20	Testing potentials of dynamic quadratic neural unit for prediction of lung motion during respiration for tracking radiation therapy 2010 ·Ivo Bukovský, Kei Ichiji, Noriyasu Homma, Makoto Yoshizawa, Ricardo Rodríguez Jorge	8

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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