Toru Niwa

885 total citations
36 papers, 664 citations indexed

About

Toru Niwa is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Toru Niwa has authored 36 papers receiving a total of 664 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Surgery, 10 papers in Pulmonary and Respiratory Medicine and 6 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Toru Niwa's work include Gastric Cancer Management and Outcomes (7 papers), Helicobacter pylori-related gastroenterology studies (6 papers) and Liver Disease Diagnosis and Treatment (4 papers). Toru Niwa is often cited by papers focused on Gastric Cancer Management and Outcomes (7 papers), Helicobacter pylori-related gastroenterology studies (6 papers) and Liver Disease Diagnosis and Treatment (4 papers). Toru Niwa collaborates with scholars based in Japan. Toru Niwa's co-authors include Yuzuru Ikehara, Hayao Nakanishi, Masao Ichinose, Sanae Ikehara, Hideyuki Tamai, Takao Maekita, Mikitaka Iguchi, Jun Kato, Masao Shibata and Norifumi Ohashi and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and Journal of the American College of Cardiology.

In The Last Decade

Toru Niwa

34 papers receiving 645 citations

Peers

Countries citing papers authored by Toru Niwa

Since Specialization

Citations

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

Fields of papers citing papers by Toru Niwa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toru Niwa

This figure shows the co-authorship network connecting the top 25 collaborators of Toru Niwa. A scholar is included among the top collaborators of Toru Niwa 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 Toru Niwa. Toru Niwa 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	Chronic Clinical Findings after Rheocarna<sup>®</sup> Therapy in a Chronic Limb-threatening Ischemia Patient with Inframalleolar Lesions 2024 ·Internal Medicine ·(unknown), Takahiro Tokuda, Toru Niwa, Akihiro Suzuki, Yusuke Nakano, Hirohiko Ando, Tetsuya Amano	1
2	Tumor-like appearance in ruptured sinus of Valsalva with quadricuspid aortic valve 2019 ·Journal of Cardiology Cases ·Yusuke Nakano, Katsuhisa Waseda, Hirohiko Ando, (unknown), Toru Niwa, Tetsuya Amano	2
3	Expression of Gastric Markers Is Associated with Malignant Potential of Nonampullary Duodenal Adenocarcinoma 2018 ·Digestive Diseases and Sciences ·Chihiro Minatsuki, Nobutake Yamamichi, Ken-ichi Inada, Yu Takahashi, Kouhei Sakurai, Takeshi Shimamoto, Yosuke Tsuji, Kazuya Shiogama, Shinya Kodashima, Yoshiki Sakaguchi, Keiko Niimi, Satoshi Ono, Toru Niwa, Ken Ohata, Nobuyuki Matsuhashi, Masao Ichinose, Mitsuhiro Fujishiro, Yutaka Tsutsumi, Kazuhiko Koike	11
4	Impact of vascular access site on procedural time of endomyocardial biopsy 2018 ·Heart and Vessels ·(unknown), Yusuke Nakano, (unknown), Toru Niwa, (unknown), Akihiro Suzuki, Atsushi Watanabe, Hirohiko Ando, Kenta Murotani, Katsuhisa Waseda, Tetsuya Amano	1
5	Predictability of tricuspid annular plane systolic excursion for the effectiveness of tolvaptan in patients with heart failure 2017 ·Journal of Echocardiography ·Toru Niwa, Katsuhisa Waseda, (unknown), Yusuke Nakano, (unknown), (unknown), Atsushi Watanabe, Hirohiko Ando, Hiroaki Takashima, Tetsuya Amano	3
6	Contribution of Contrast‐Enhanced Sonography With Perfluorobutane Microbubbles for Diagnosis of Recurrent Hepatocellular Carcinoma 2016 ·Journal of Ultrasound in Medicine ·(unknown), Hideyuki Tamai, Naoki Shingaki, Yoshiyuki Mori, (unknown), Junya Nuta, Yoshimasa Maeda, Kosaku Moribata, Toru Niwa, Hisanobu Deguchi, Izumi Inoue, Takao Maekita, Mikitaka Iguchi, Jun Kato, Masao Ichinose	9
7	Blue Polypoid Colorectal Lesions in a Woman With Ulcerative Colitis Taking Qing-Dai 2016 ·Clinical Gastroenterology and Hepatology ·Jun Kato, (unknown), Toru Niwa	1
8	Serum pepsinogen levels can quantify the risk of development of metachronous gastric cancer after endoscopic resection 2016 ·International Journal of Cancer ·Mikitaka Iguchi, Jun Kato, Takeichi Yoshida, (unknown), (unknown), (unknown), Yoshiyuki Mori, Yoshimasa Maeda, Kosaku Moribata, Naoki Shingaki, Toru Niwa, Hisanobu Deguchi, Izumi Inoue, Takao Maekita, Hideyuki Tamai, Masao Ichinose	11
9	Kupffer Imaging by Contrast‐Enhanced Sonography With Perfluorobutane Microbubbles Is Associated With Outcomes After Radiofrequency Ablation of Hepatocellular Carcinoma 2016 ·Journal of Ultrasound in Medicine ·Junya Nuta, Hideyuki Tamai, Yoshiyuki Mori, Naoki Shingaki, (unknown), Ryo Shimizu, Yoshimasa Maeda, Kosaku Moribata, Toru Niwa, Hisanobu Deguchi, Izumi Inoue, Takao Maekita, Mikitaka Iguchi, Jun Kato, Masao Ichinose	8
10	Study of the Power Distribution of Each Impedance in the Electrical Circuit of Ionized Gas Coagulation Equipment 2015 ·Plasma Medicine ·Hajime Sakakita, S. Kiyama, Jae‐Ho Kim, (unknown), (unknown), Toru Niwa, Nobuyuki Shimizu, Yasuyuki Seto, Masao Ichinose, Yuzuru Ikehara	10
11	A case of right double inferior vena cava with circumcaval ureter 2014 ·Japanese Journal of Radiology ·Tamaki Ichikawa, (unknown), Tomohiro Yamashita, Toru Niwa, (unknown), Jun Koizumi, Yoshiaki Kawaguchi, Yutaka Imai	6
12	CLINICAL IMPACT OF INTRACORONARY NICORANDIL INFUSION COMPARED TO INTRAVENOUS ADENOSINE TRIPHOSPHATE ON MEASUREMENT OF FRACTIONAL FLOW RESERVE IN INTERMEDIATE CORONARY LESIONS 2013 ·Journal of the American College of Cardiology ·Hiroaki Takashima, Daiki Kato, (unknown), Katsuhisa Waseda, (unknown), Hirohiko Ando, (unknown), Yasuo Kuroda, Takashi Kosaka, (unknown), (unknown), Toru Niwa, (unknown), Yusuke Nakano, Akihiro Suzuki, Shigeko Sato, Masanobu Fujimoto, (unknown), Tetsuya Amano	1
13	A case of fulminant myocarditis associated with novel N1H1 influenza successfully treated by percutaneous cardiopulmonary support system 2010 ·Journal of Cardiology Cases ·Ryota Morimoto, Takahito Sone, Hideyuki Tsuboi, Hiroaki Mukawa, Itsuro Morishima, Michitaka Uesugi, Hiromi Sasaki, Toru Niwa, (unknown), Toshihiko Yamamoto, (unknown), Yasunori Kanzaki, (unknown), Yosuke Iwata	2
14	Risk stratification of patients with prior myocardial infarction and advanced left ventricular dysfunction by gated myocardial perfusion SPECT imaging 2008 ·Journal of Nuclear Cardiology ·Itsuro Morishima, Takahito Sone, Hideyuki Tsuboi, Hiroaki Mukawa, Michitaka Uesugi, (unknown), Kensuke Takagi, Toru Niwa, Yasuhiro Morita, Ryuichiro Murakami, Yasushi Numaguchi, Toyoaki Murohara, Kenji Okumura	25
15	Apical Golgi localization of N,N′-diacetyllactosediamine synthase, β4GalNAc-T3, is responsible for LacdiNAc expression on gastric mucosa 2006 ·Glycobiology ·Yuzuru Ikehara, Takashi Sato, Toru Niwa, Sachiko Nakamura, Masanori Gotoh, Sanae Ikehara, Katsue Kiyohara, (unknown), Toshie Iwai, Hayao Nakanishi, Jun Hirabayashi, (unknown), Hisashi Narimatsu	38
16	A polymorphism of C-to-T substitution at −31 IL1B is associated with the risk of advanced gastric adenocarcinoma in a Japanese population 2006 ·Journal of Human Genetics ·Sanae Ikehara, Yuzuru Ikehara, Keitaro Matsuo, Kaoru Hirose, Toru Niwa, Hidemi Ito, Seiji Ito, Yasuhiro Kodera, Yoshitaka Yamamura, Hayao Nakanishi, Masae Tatematsu, Kazuo Tajima	18
17	Establishment and characterization of a human colonic mucinous carcinoma cell line with predominant goblet‐cell differentiation from liver metastasis 2005 ·Pathology International ·Takasuke Yamachika, Hayao Nakanishi, Kenzo Yasui, Yuzuru Ikehara, Toru Niwa, Hideki Wanibuchi, Masae Tatematsu, Shoji Fukushima	9
18	Simulation model of fatigue crack opening/closing phenomena for predicting RPG load under arbitrary stress distribution field 1995 ·The Proceedings of the ... International Offshore and Polar Engineering Conference ·(unknown), Toru Niwa	4
19	Oral Sorbent Suppresses Accumulation of Albumin-Bound Indoxyl Sulphate in Serum of Haemodialysis Patients 1991 ·Nephrology Dialysis Transplantation ·Toru Niwa, Yutaka Emoto, Kenji Maeda, Yasuo Uehara, (unknown), Masao Shibata	78
20	Prostaglandin E1 infusion therapy in chronic glomerulonephritis — A double-blind, crossover trial 1985 ·Prostaglandins Leukotrienes and Medicine ·Toru Niwa, Hiroaki Asada, Kiyofumi Yamada	7

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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