Masayuki Sada

2.7k total citations · 1 hit paper
14 papers, 999 citations indexed

About

Masayuki Sada is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Masayuki Sada has authored 14 papers receiving a total of 999 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Surgery, 10 papers in Pulmonary and Respiratory Medicine and 3 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Masayuki Sada's work include Gallbladder and Bile Duct Disorders (8 papers), Pediatric Hepatobiliary Diseases and Treatments (4 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers). Masayuki Sada is often cited by papers focused on Gallbladder and Bile Duct Disorders (8 papers), Pediatric Hepatobiliary Diseases and Treatments (4 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers). Masayuki Sada collaborates with scholars based in Japan. Masayuki Sada's co-authors include Kenji Fujiwara, Tatsuya Hirano, Masao Tanaka, Shin Akagawa, Kohei Horioka, Keigo Ozono, Kinjiro Sumiyoshi, Norihiro Sato, Kazuhiro Koikawa and Masao Tanaka and has published in prestigious journals such as PLoS ONE, Cardiovascular Research and World Journal of Surgery.

In The Last Decade

Masayuki Sada

13 papers receiving 980 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Hepatogastroenterology

2011 841 citations Kinjiro Sumiyoshi, Norihiro Sato et al. Hepatogastroenterology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Masayuki Sada Japan	7	595	384	294	172	164	14	999
Shin Akagawa Japan	10	577 1.0×	407 1.1×	301 1.0×	223 1.3×	163 1.0×	28	1.1k
Kinjiro Sumiyoshi Japan	8	688 1.2×	455 1.2×	336 1.1×	198 1.2×	170 1.0×	13	1.2k
Yücel Üstündağ Türkiye	19	563 0.9×	276 0.7×	218 0.7×	193 1.1×	154 0.9×	68	1.1k
Keigo Ozono Japan	7	484 0.8×	283 0.7×	309 1.1×	193 1.1×	161 1.0×	18	945
Shen Jiang China	6	438 0.7×	270 0.7×	266 0.9×	181 1.1×	157 1.0×	12	909
Kohei Horioka Japan	7	490 0.8×	290 0.8×	388 1.3×	174 1.0×	161 1.0×	18	1.1k
Stefano Puleo Italy	19	541 0.9×	325 0.8×	251 0.9×	199 1.2×	212 1.3×	94	1.0k
Atsushi Sugitani Japan	19	686 1.2×	343 0.9×	237 0.8×	102 0.6×	71 0.4×	69	1.0k
Nonthalee Pausawasdi Thailand	16	623 1.0×	294 0.8×	315 1.1×	218 1.3×	78 0.5×	97	979
William C. Palmer United States	13	566 1.0×	254 0.7×	235 0.8×	177 1.0×	160 1.0×	53	959

Countries citing papers authored by Masayuki Sada

Since Specialization

Citations

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

Fields of papers citing papers by Masayuki Sada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masayuki Sada

This figure shows the co-authorship network connecting the top 25 collaborators of Masayuki Sada. A scholar is included among the top collaborators of Masayuki Sada 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 Masayuki Sada. Masayuki Sada is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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14 of 14 papers shown

Fujiwara, Kenji, et al.. (2024). Variations in the cystic duct: frequency and the relationship among insertion sides and heights on the bile duct. Surgical and Radiologic Anatomy. 46(2). 223–230. 1 indexed citations

Fujiwara, Kenji, et al.. (2021). Usefulness of several factors and clinical scoring models in preoperative diagnosis of complicated appendicitis. PLoS ONE. 16(7). e0255253–e0255253. 13 indexed citations

Fujiwara, Kenji, Toshihiro Masatsugu, Atsushi Abe, Tatsuya Hirano, & Masayuki Sada. (2020). Preoperative diagnoses and identification rates of unexpected gallbladder cancer. PLoS ONE. 15(9). e0239178–e0239178. 3 indexed citations

Fujiwara, Kenji, Atsushi Abe, Toshihiro Masatsugu, Tatsuya Hirano, & Masayuki Sada. (2020). Effect of gallbladder polyp size on the prediction and detection of gallbladder cancer. Surgical Endoscopy. 35(9). 5179–5185. 15 indexed citations

Matsumoto, Kotaro, Takashi Morisaki, Tatsuya Hirano, & Masayuki Sada. (2011). [A resected case of advanced gastric cancer with multiple liver metastasis successfully treated by preoperative and postoperative S-1/CPT-11 combination chemotherapy].. PubMed. 38(5). 819–22. 1 indexed citations

Sumiyoshi, Kinjiro, Norihiro Sato, Shin Akagawa, et al.. (2011). Hepatogastroenterology. Hepatogastroenterology. 59(114). 325–8. 841 indexed citations breakdown →

Oda, Hitoshi, et al.. (2003). LONG-TERM RESULTS OF ENDOSCOPIC SPHINCTEROTOMY IN PATIENTS WITH CHOLEDOCHOCELE. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 64(5). 1065–1070. 2 indexed citations

Toyonaga, Takayuki, Kazuo Chijiiwa, Kenji Nakano, et al.. (2003). Completion Radical Surgery after Cholecystectomy for Accidentally Undiagnosed Gallbladder Carcinoma. World Journal of Surgery. 27(3). 266–271. 98 indexed citations

Oda, Hitoshi, et al.. (2001). A Case of Anorectal Malignant Melanoma with a Rapid Growth of Metachronous Liver Metastasis.. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 62(9). 2246–2250.

10.

Takamoto, S, Yutaka Okita, Noboru Motomura, et al.. (1998). Cryopreserved femoral arterial allografts for vascular access in hemodialysis. Transplantation Proceedings. 30(7). 3917–3919. 8 indexed citations

11.

Tanaka, Masao, Masayuki Sada, Toru EGUCHI, et al.. (1996). Comparison of Routine and Selective Endoscopic Retrograde Cholangiography before Laparoscopic Cholecystectomy. World Journal of Surgery. 20(3). 267–271. 6 indexed citations

12.

Sada, Masayuki, et al.. (1992). Laparoscopic Cholecystectomy. Surgical Laparoscopy Endoscopy & Percutaneous Techniques. 2(2). 179–179. 7 indexed citations

13.

Nishimura, T, Masayuki Sada, Hideyuki Sasaki, et al.. (1989). Sodium nuclear magnetic resonance imaging of acute cardiac rejection in heterotopic heart transplantation. Cardiovascular Research. 23(7). 561–566. 3 indexed citations

14.

Nishimura, T, Masayuki Sada, H. Sasaki, et al.. (1987). [Sodium nuclear magnetic resonance imaging of acute cardiac rejection in heterotopic heart transplantation].. PubMed. 24(12). 1741–8. 1 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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