T. Okai

403 total citations
28 papers, 152 citations indexed

About

T. Okai is a scholar working on Pulmonary and Respiratory Medicine, Rheumatology and Epidemiology. According to data from OpenAlex, T. Okai has authored 28 papers receiving a total of 152 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Pulmonary and Respiratory Medicine, 9 papers in Rheumatology and 6 papers in Epidemiology. Recurrent topics in T. Okai's work include Systemic Lupus Erythematosus Research (5 papers), Congenital Diaphragmatic Hernia Studies (3 papers) and Metastasis and carcinoma case studies (3 papers). T. Okai is often cited by papers focused on Systemic Lupus Erythematosus Research (5 papers), Congenital Diaphragmatic Hernia Studies (3 papers) and Metastasis and carcinoma case studies (3 papers). T. Okai collaborates with scholars based in Japan, Pakistan and United States. T. Okai's co-authors include S. Kozuma, Y. Taketani, Kazunori Baba, Manabu Akahane, T Mochizuki, Akihiko Kikuchi, Michiko Suzuki, Akihiko Sekizawa, Tsuneo Fujii and Naoki Asazuma and has published in prestigious journals such as Radiology, Annals of the Rheumatic Diseases and Lara D. Veeken.

In The Last Decade

T. Okai

23 papers receiving 146 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
T. Okai Japan 8 55 52 37 36 23 28 152
P. Beltrami Italy 11 137 2.5× 104 2.0× 68 1.8× 44 1.2× 9 0.4× 51 247
Matthew R. Williams United States 9 30 0.5× 40 0.8× 17 0.5× 22 0.6× 27 1.2× 18 259
Paivi Miettunen Canada 6 51 0.9× 28 0.5× 11 0.3× 34 0.9× 13 0.6× 14 129
Dubernard Jm France 10 77 1.4× 191 3.7× 28 0.8× 5 0.1× 22 1.0× 72 321
Vincent Grobost France 10 91 1.7× 56 1.1× 10 0.3× 71 2.0× 17 0.7× 20 245
Silvy Laporte France 6 14 0.3× 37 0.7× 9 0.2× 118 3.3× 10 0.4× 11 193
Alexandre Dufay France 4 42 0.8× 132 2.5× 7 0.2× 7 0.2× 26 1.1× 6 260
Elisabetta Ruzzon Italy 12 47 0.9× 29 0.6× 13 0.4× 32 0.9× 11 0.5× 18 370
Mohan Verghese United States 12 136 2.5× 151 2.9× 16 0.4× 43 1.2× 27 1.2× 22 274
Florent Joly France 8 29 0.5× 50 1.0× 22 0.6× 11 0.3× 15 0.7× 19 230

Countries citing papers authored by T. Okai

Since Specialization
Citations

This map shows the geographic impact of T. Okai'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 T. Okai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Okai more than expected).

Fields of papers citing papers by T. Okai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of T. Okai

This figure shows the co-authorship network connecting the top 25 collaborators of T. Okai. A scholar is included among the top collaborators of T. Okai 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 T. Okai. T. Okai 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.
2.
Aoki, Naoko, et al.. (2014). Systemic lupus erythematosus as the concomitant manifestation of angioimmunoblastic T-cell lymphoma. Modern Rheumatology. 27(2). 360–363. 3 indexed citations
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Purwosunu, Yuditiya, Akihiko Sekizawa, Shigeyuki Okazaki, et al.. (2010). Prediction of Preeclampsia by Analysis of Cell-free Messenger RNA in Maternal Plasma. Obstetric Anesthesia Digest. 30(1). 46–46. 8 indexed citations
7.
Okai, T., et al.. (2007). Basedow Disease with Recurrent Syncopal Attack and Severe Pulmonary Hypertension. Nihon Naika Gakkai Zasshi. 96(4). 772–774. 1 indexed citations
8.
Kato, Takashi, et al.. (2004). Marked increase of serum hepatitis C virus (HCV) RNA titer during treatment with high-dose prednisolone in a case of polymyositis. Clinical Rheumatology. 24(2). 182–186. 3 indexed citations
9.
Okai, T.. (2004). . Nihon Toseki Igakkai Zasshi. 37(5). 1296–1298.
10.
Kozuma, S., Akihiko Kikuchi, Masatoshi Sakai, et al.. (2003). Sonographic assessment of the cervix before, during and after a uterine contraction is effective in predicting the course of labor. Ultrasound in Obstetrics and Gynecology. 22(6). 604–608. 14 indexed citations
11.
Kimura, Hideyo, et al.. (2002). Endosonographic Misdiagnosis of Tumor Recurrence after Surgery for Malignant GIST. Endoscopy. 34(3). 238–238. 5 indexed citations
12.
Sugiyama, Masahiko, et al.. (1999). Management of Prenatally Diagnosed Congenital Cystic Adenomatoid Malformation of the Lung. European Journal of Pediatric Surgery. 9(1). 53–57. 8 indexed citations
13.
Baba, Kazunori, T. Okai, S. Kozuma, et al.. (1997). Real-time processable three-dimensional US in obstetrics.. Radiology. 203(2). 571–574. 32 indexed citations
14.
Ryo, Eiji, T. Okai, S Namba, et al.. (1997). Successful thoracoamniotic shunting using a double‐flower catheter in a case of fetal cystic adenomatoid malformation associated with hydrops and polyhydramnios. Ultrasound in Obstetrics and Gynecology. 10(4). 293–296. 10 indexed citations
15.
Songür, Yıldıran, T. Okai, Hikaru Watanabe, et al.. (1995). Endosonographic Features of a Calcified Mucinous Gastric Carcinoma. Endoscopy. 27(4). 347–347. 1 indexed citations
16.
Ishii, Shiro, Kenichi Tanaka, T. Okai, et al.. (1994). [Perinatal outcome of pregnancies following therapy of infertility].. PubMed. 46(12). 1305–10.
17.
Okai, T., et al.. (1992). [A case report of lupus nephritis associated with minimal change nephrotic syndrome--comparison of various histological types of 67 cases with lupus nephritis].. PubMed. 34(7). 835–40. 12 indexed citations
18.
Okai, T., et al.. (1992). A case report of lupus nephritis associated with minimal change nephrotic syndrome. Comparison of various histlogical types of 67 cases with lupus nephritis.:-Comparison of various histlogical types of 67 cases with lupus nephritis -. Medical Entomology and Zoology. 34(7). 835–840. 1 indexed citations
19.
Sawabu, Norio, Hiroyuki Ohta, Hideo Watanabe, et al.. (1987). [Clinical evaluation of serum levels of CA-125 in patients with digestive diseases].. PubMed. 84(10). 2386–92. 1 indexed citations
20.
Okai, T., et al.. (1984). [Nonimmunologic hydrops fetalis: a review of 30 cases].. PubMed. 36(10). 1813–21.

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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