K Machii

946 total citations
35 papers, 671 citations indexed

About

K Machii is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging and Pulmonary and Respiratory Medicine. According to data from OpenAlex, K Machii has authored 35 papers receiving a total of 671 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Cardiology and Cardiovascular Medicine, 11 papers in Radiology, Nuclear Medicine and Imaging and 9 papers in Pulmonary and Respiratory Medicine. Recurrent topics in K Machii's work include Cardiac Imaging and Diagnostics (10 papers), Cardiovascular Function and Risk Factors (10 papers) and Cardiac Valve Diseases and Treatments (7 papers). K Machii is often cited by papers focused on Cardiac Imaging and Diagnostics (10 papers), Cardiovascular Function and Risk Factors (10 papers) and Cardiac Valve Diseases and Treatments (7 papers). K Machii collaborates with scholars based in Japan. K Machii's co-authors include T Umeda, Takashi Nishijo, Hiroshi Yamaguchi, Shinichiro Nishiyama, Takao Ishimura, F Nagasaki, Shigemoto Nakanishi, Fumimaro Takatsu, Mitsuaki Isobe and Fumimaro Takaku and has published in prestigious journals such as Circulation, Circulation Research and The American Journal of Cardiology.

In The Last Decade

K Machii

32 papers receiving 627 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K Machii Japan 8 553 138 100 97 88 35 671
Howard C. Cohen United States 16 510 0.9× 136 1.0× 81 0.8× 63 0.6× 206 2.3× 37 683
Costas Kourouklis Greece 5 387 0.7× 156 1.1× 56 0.6× 80 0.8× 71 0.8× 10 451
Abdul S. Abbasi United States 15 734 1.3× 167 1.2× 117 1.2× 256 2.6× 203 2.3× 18 904
H. Kuhn Germany 22 1.1k 1.9× 40 0.3× 198 2.0× 60 0.6× 120 1.4× 76 1.2k
R O'Brien United Kingdom 7 579 1.0× 68 0.5× 66 0.7× 96 1.0× 96 1.1× 7 749
Oben Döven Türkiye 11 319 0.6× 164 1.2× 66 0.7× 159 1.6× 178 2.0× 36 539
Michael M. Webb‐Peploe United Kingdom 13 308 0.6× 65 0.5× 39 0.4× 171 1.8× 171 1.9× 26 568
Koh Arakawa Japan 11 223 0.4× 135 1.0× 53 0.5× 101 1.0× 161 1.8× 30 448
Akiyoshi Nishikado Japan 10 603 1.1× 56 0.4× 70 0.7× 282 2.9× 79 0.9× 34 709
Fred A. Crawford United States 13 547 1.0× 207 1.5× 264 2.6× 58 0.6× 299 3.4× 22 770

Countries citing papers authored by K Machii

Since Specialization
Citations

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

Fields of papers citing papers by K Machii

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K Machii

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

All Works

20 of 20 papers shown
1.
Moroi, Masao, Atsushi Namiki, Tetsu Yamaguchi, et al.. (1993). Vascular relaxing mechanism of denopamine in isolated canine coronary, femoral, mesenteric, and renal arteries. Heart and Vessels. 8(4). 176–180. 1 indexed citations
2.
Imamura, Yoshihiko, et al.. (1993). [Evaluation of left ventricular systolic function by pulsed Doppler echocardiography in patients with acute myocardial infarction].. PubMed. 23(3). 231–40. 3 indexed citations
3.
Hase, Hiroki, et al.. (1993). Effects of rHuEPO therapy on exercise capacity in hemodialysis patients with coronary artery disease.. Japanese Circulation Journal. 57(2). 131–137. 14 indexed citations
4.
Kubo, Hiroshi, et al.. (1992). Exercise training and the prevention of restenosis after percutaneous transluminal coronary angioplasty (PTCA).. PubMed. 21(1). 42–6. 5 indexed citations
5.
Kubo, Hiroshi, et al.. (1992). Preventive effect of exercise training on recurrent stenosis after percutaneous transluminal coronary angioplasty(PTCA).. Japanese Circulation Journal. 56(5). 413–421. 13 indexed citations
6.
Namiki, Atsushi, et al.. (1992). Endothelin-1- and endothelin-3-induced vasorelaxation via common generation of endothelium-derived nitric oxide. Life Sciences. 50(10). 677–682. 65 indexed citations
7.
Namiki, Atsushi, et al.. (1992). Endothelin-1- and endothelin-3-induced vasorelaxation via endothelium-derived nitric oxide. The Japanese Journal of Pharmacology. 58. 326–326. 5 indexed citations
8.
Namiki, Atsushi, et al.. (1991). Acetylcholine-induced endothelium-dependent vascular smooth muscle relaxation in nitroglycerin-tolerant isolated rat aorta. Heart and Vessels. 6(3). 175–180. 3 indexed citations
9.
Ikeda, Takanori, Kaoru Sugi, Kenji Ninomiya, et al.. (1991). [An experimental study on the alteration of myocardial tissue by radiofrequency catheter ablation: differences according to the frequency and the device].. PubMed. 39(8). 807–11. 1 indexed citations
10.
11.
Tokunaga, K., et al.. (1985). [Echocardiographic manifestations of nonrheumatic aortic regurgitation].. PubMed. 15(3). 829–46. 2 indexed citations
12.
Imamura, Masato, et al.. (1984). MEASUREMENT OF CARDIAC OUTPUT BY ACETYLENE REBREATHING PROCEDURE UTILIZING THE MAGNETIC COLLECTOR DURING SUBMAXIMAL AND MAXIMAL TREADMILL EXERCISE TEST : Hemodynamics, Cardiac Function (IV) : IV : 48 Annual Scientific Meeting, Japanese Circulation Society. Japanese Circulation Journal-english Edition. 48(8). 912–913. 2 indexed citations
13.
Imataka, Kouji, et al.. (1981). ELEVATION OF SERUM CREATINE PHOSPHOKINASE DURING PINDOLOL TREATMENT. Nihon Naika Gakkai Zasshi. 70(4). 580–585. 4 indexed citations
14.
Abe, Hironori, Shinichi Matsuda, Kiyoshi Ikeda, et al.. (1980). [Clinical studies on the thallium-201 myocardial scintiphotography in the patients with ischemic heart diseases: studies in organ distribution of thallium-201 and in the measurement of myocardial blood flow (author's transl)].. PubMed. 17(8). 891–9. 1 indexed citations
15.
16.
Umeda, T, et al.. (1979). M-mode and Cross-sectional Echocardiographic Evaluation of Rheumatic Mitral Valve Disease : SYMPOSIUM ON CURRENT TOPICS AND FUTURE PROSPECTS IN ECHOCARDIOGRAPHY. Circulation. 43(4). 297–304. 1 indexed citations
17.
18.
Yamaguchi, Tetsu, et al.. (1978). Echocardiographic Evaluation of Left Ventricular Filling in Mitral Stenosis Role of Atrial Contraction. Japanese Heart Journal. 19(5). 698–711. 3 indexed citations
19.
20.
Sekiguchi, H., et al.. (1967). Spectral Phonocardiogram in Mitral Stenosis. Japanese Circulation Journal-english Edition. 31(1). 134. 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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