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R. Kita · SciRah

Researcher profile · Semantic Scholar

R. Kita

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R. Kita — researcher profile on SciRah

h-index: 29
Works: 124
Citations: 2,668

Most-cited papers

Hypervascular hepatocellular carcinoma: correlation between biologic features and signal intensity on gadoxetic acid-enhanced MR images.
A. Kitao, O. Matsui, Norihide Yoneda, K. Kozaka +8 more
2012Radiology134 citations Open access
Semantic Scholar
Treatment for Hepatocellular Carcinoma in Elderly Patients: A Literature Review
Hiroki Nishikawa, Toru Kimura, R. Kita, Y. Osaki
2013Journal of Cancer110 citations Open access
Semantic Scholar
Hepatocellular Carcinoma with β-Catenin Mutation: Imaging and Pathologic Characteristics.
A. Kitao, O. Matsui, Norihide Yoneda, K. Kozaka +15 more
2015Radiology106 citations
Semantic Scholar
Comparison of percutaneous radiofrequency thermal ablation and surgical resection for small hepatocellular carcinoma
Hiroki Nishikawa, Tadashi Inuzuka, H. Takeda, J. Nakajima +11 more
2011BMC Gastroenterology81 citations Open access
Semantic Scholar
Prognostic significance of sarcopenia in patients with hepatocellular carcinoma undergoing sorafenib therapy.
Hiroki Nishikawa, N. Nishijima, H. Enomoto, A. Sakamoto +8 more
2017Oncology Letters79 citations Open access
Semantic Scholar
Percutaneous radiofrequency ablation therapy for hepatocellular carcinoma: a proposed new grading system for the ablative margin and prediction of local tumor progression and its validation
Hiroki Nishikawa, Tadashi Inuzuka, H. Takeda, J. Nakajima +9 more
2011Journal of gastroenterology72 citations
Semantic Scholar
Cold snare polypectomy reduced delayed postpolypectomy bleeding compared with conventional hot polypectomy: a propensity score-matching analysis
Takeshi Yamashina, M. Fukuhara, T. Maruo, Gensho Tanke +17 more
2017Endoscopy International Open70 citations Open access
Semantic Scholar
Transcatheter arterial embolic therapies for hepatocellular carcinoma: a literature review.
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Osaki
2014Anticancer Research57 citations
Semantic Scholar
Effect of transcatheter arterial chemoembolization prior to surgical resection for hepatocellular carcinoma.
Hiroki Nishikawa, A. Arimoto, T. Wakasa, R. Kita +2 more
2013International Journal of Oncology53 citations Open access
Semantic Scholar
Radiofrequency ablation for hepatocellular carcinoma
Hiroki Nishikawa, Toru Kimura, R. Kita, Y. Osaki
2013International Journal of Hyperthermia52 citations Open access
Semantic Scholar
Decrease in alpha-fetoprotein levels predicts reduced incidence of hepatocellular carcinoma in patients with hepatitis C virus infection receiving interferon therapy: a single center study
Y. Osaki, Y. Ueda, H. Marusawa, J. Nakajima +8 more
2012Journal of gastroenterology51 citations
Semantic Scholar
Complete Response of Advanced Hepatocellular Carcinoma with Multiple Lung Metastases Treated with Sorafenib: A Case Report
Tadashi Inuzuka, Hiroki Nishikawa, A. Sekikawa, H. Takeda +7 more
2011Oncology47 citations
Semantic Scholar
Radiofrequency ablation for hepatocellular carcinoma: the relationship between a new grading system for the ablative margin and clinical outcomes
Hiroki Nishikawa, Y. Osaki, E. Iguchi, H. Takeda +8 more
2013Journal of gastroenterology43 citations
Semantic Scholar
Differentiation Between Hepatocellular Carcinoma Showing Hyperintensity on the Hepatobiliary Phase of Gadoxetic Acid-Enhanced MRI and Focal Nodular Hyperplasia by CT and MRI.
A. Kitao, O. Matsui, Norihide Yoneda, R. Kita +3 more
2018AJR. American journal of roentgenology42 citations
Semantic Scholar
The Effect of Long-term Supplementation With Branched-chain Amino Acid Granules in Patients With Hepatitis C Virus-related Hepatocellular Carcinoma After Radiofrequency Thermal Ablation
Hiroki Nishikawa, Y. Osaki, E. Iguchi, Y. Koshikawa +13 more
2013Journal of Clinical Gastroenterology39 citations
Semantic Scholar
Gadoxetic acid‐enhanced magnetic resonance imaging reflects co‐activation of β‐catenin and hepatocyte nuclear factor 4α in hepatocellular carcinoma
A. Kitao, O. Matsui, Norihide Yoneda, K. Kozaka +16 more
2018Hepatology Research38 citations
Semantic Scholar
Branched-chain amino acid treatment before transcatheter arterial chemoembolization for hepatocellular carcinoma.
Hiroki Nishikawa, Y. Osaki, Tadashi Inuzuka, H. Takeda +8 more
2012World Journal of Gastroenterology38 citations Open access
Semantic Scholar
Long‐term antitumor effect of lenvatinib on unresectable hepatocellular carcinoma with portal vein invasion
H. Takeda, N. Nishijima, A. Nasu, H. Komekado +4 more
2019Hepatology Research34 citations Open access
Semantic Scholar
Comparison of Clinical Characteristics and Survival after Surgery in Patients with Non-B and Non-C Hepatocellular Carcinoma and Hepatitis Virus-Related Hepatocellular Carcinoma
Hiroki Nishikawa, A. Arimoto, T. Wakasa, R. Kita +2 more
2013Journal of Cancer33 citations Open access
Semantic Scholar
Transcatheter Arterial Chemoembolization for Intermediate-Stage Hepatocellular Carcinoma: Clinical Outcome and Safety in Elderly Patients
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Ohara +7 more
2014Journal of Cancer32 citations Open access
Semantic Scholar
Percutaneous radiofrequency ablation for hepatocellular carcinoma: clinical outcome and safety in elderly patients.
Hiroki Nishikawa, Y. Osaki, E. Iguchi, H. Takeda +8 more
2012Journal of Gastrointestinal and Liver Diseases32 citations
Semantic Scholar
Clinical Implication of Performance Status in Patients with Hepatocellular Carcinoma Complicating with Cirrhosis
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Ohara +6 more
2015Journal of Cancer30 citations Open access
Semantic Scholar
Surgical resection for hepatocellular carcinoma: clinical outcomes and safety in elderly patients
Hiroki Nishikawa, A. Arimoto, T. Wakasa, R. Kita +2 more
2013European Journal of Gastroenterology and Hepathology30 citations
Semantic Scholar
Hepatic Arterial Infusion Chemotherapy for Advanced Hepatocellular Carcinoma in Japan
Hiroki Nishikawa, Y. Osaki, R. Kita, Toru Kimura
2012Cancers29 citations Open access
Semantic Scholar
Comparison of FIB-4 index and aspartate aminotransferase to platelet ratio index on carcinogenesis in chronic hepatitis B treated with entecavir
Hiroki Nishikawa, N. Nishijima, H. Enomoto, A. Sakamoto +8 more
2017Journal of Cancer28 citations Open access
Semantic Scholar
Effect of treatment with branched‐chain amino acids during sorafenib therapy for unresectable hepatocellular carcinoma
H. Takeda, Hiroki Nishikawa, E. Iguchi, Y. Ohara +8 more
2014Hepatology Research26 citations
Semantic Scholar
Hypervascular hepatocellular carcinomas showing hyperintensity on hepatobiliary phase of gadoxetic acid-enhanced magnetic resonance imaging: a possible subtype with mature hepatocyte nature
Norihide Yoneda, O. Matsui, A. Kitao, R. Kita +6 more
2013Japanese Journal of Radiology26 citations
Semantic Scholar
Underwater endoscopic mucosal resection: a new endoscopic method for resection of rectal neuroendocrine tumor grade 1 (carcinoid) ≤ 10 mm in diameter
Takeshi Yamashina, Takehiko Tumura, T. Maruo, Takayuki Matsumae +16 more
2018Endoscopy International Open25 citations Open access
Semantic Scholar
The effect of pegylated interferon-alpha2b and ribavirin combination therapy for chronic hepatitis C infection in elderly patients
Hiroki Nishikawa, E. Iguchi, Y. Koshikawa, Soichiro Ako +12 more
2012BMC Research Notes25 citations Open access
Semantic Scholar
Transcatheter arterial infusion chemotherapy prior to radiofrequency thermal ablation for single hepatocellular carcinoma reduces the risk of intrahepatic distant recurrence.
Hiroki Nishikawa, Y. Osaki, R. Kita, Toru Kimura +9 more
2012International Journal of Oncology25 citations Open access
Semantic Scholar
Clinical Characteristics of Non-B Non-C Hepatocellular Carcinoma: A Single-Center Retrospective Study
S. Kim, H. Marusawa, Yuji Eso, Hiroki Nishikawa +6 more
2011Digestion22 citations Open access
Semantic Scholar
Multiregional whole‐genome sequencing of hepatocellular carcinoma with nodule‐in‐nodule appearance reveals stepwise cancer evolution
H. Takeda, Atsushi Takai, Ken Kumagai, E. Iguchi +11 more
2020Journal of Pathology20 citations
Semantic Scholar
Effect of nucleoside analog use in patients with hepatitis B virus‐related hepatocellular carcinoma
Hiroki Nishikawa, N. Nishijima, A. Arimoto, Tadashi Inuzuka +3 more
2014Hepatology Research20 citations
Semantic Scholar
Impact of pretreatment serum cholinesterase level in unresectable advanced hepatocellular carcinoma patients treated with sorafenib.
H. Takeda, Hiroki Nishikawa, E. Iguchi, Y. Ohara +9 more
2013Molecular and clinical oncology20 citations Open access
Semantic Scholar
Pre-treatment C-reactive protein as a prognostic factor for recurrence after surgical resection of hepatocellular carcinoma.
Hiroki Nishikawa, A. Arimoto, T. Wakasa, R. Kita +2 more
2013Anticancer Research18 citations
Semantic Scholar
The Relation between Obesity and Survival after Surgical Resection of Hepatitis C Virus-Related Hepatocellular Carcinoma
Hiroki Nishikawa, A. Arimoto, T. Wakasa, R. Kita +2 more
2013Gastroenterology Research and Practice18 citations Open access
Semantic Scholar
Visualization of blood drainage area from hypervascular hepatocellular carcinoma on ultrasonographic images during hepatic arteriogram: Comparison with depiction of drainage area on contrast‐enhanced ultrasound
R. Kita, A. Sakamoto, Yoshiaki Nagata, N. Nishijima +7 more
2012Hepatology Research18 citations
Semantic Scholar
Effect of body mass index on survival after curative therapy for non-B non-C hepatocellular carcinoma.
Hiroki Nishikawa, Y. Osaki, H. Takeda, A. Sakamoto +6 more
2013Journal of Gastrointestinal and Liver Diseases17 citations
Semantic Scholar
Percutaneous radiofrequency ablation therapy for recurrent hepatocellular carcinoma.
Hiroki Nishikawa, Y. Osaki, E. Iguchi, H. Takeda +7 more
2012Anticancer Research17 citations
Semantic Scholar
Comparison of the efficacy of transcatheter arterial chemoembolization and sorafenib for advanced hepatocellular carcinoma
Hiroki Nishikawa, Y. Osaki, E. Iguchi, H. Takeda +9 more
2012Experimental and Therapeutic Medicine16 citations Open access
Semantic Scholar
Relation between antibody to hepatitis B core antigen and survival after curative therapy for non-B non-C hepatocellular carcinoma.
Hiroki Nishikawa, Y. Osaki, A. Arimoto, R. Kita +1 more
2013Anticancer Research15 citations
Semantic Scholar
Sorafenib-induced acute interstitial pneumonia in patients with advanced hepatocellular carcinoma: report of three cases
H. Takeda, Hiroki Nishikawa, E. Iguchi, F. Matsuda +3 more
2012Clinical Journal of Gastroenterology15 citations Open access
Semantic Scholar
Comparison of transcatheter arterial chemoembolization and transcatheter arterial chemotherapy infusion for patients with intermediate-stage hepatocellular carcinoma.
Hiroki Nishikawa, Y. Osaki, R. Kita, Toru Kimura +8 more
2014Oncology Report14 citations Open access
Semantic Scholar
Prognostic factors in patients with hepatitis B virus-related hepatocellular carcinoma undergoing nucleoside analog antiviral therapy
Hiroki Nishikawa, N. Nishijima, A. Arimoto, Tadashi Inuzuka +3 more
2013Oncology Letters14 citations Open access
Semantic Scholar
Proposal of the radicality grading as a criterion for therapeutic effectiveness of RFA against hepatocellular carcinoma, in relation to the local recurrence rate
N. Nishijima, Yukio Ohsaki, R. Kita, Yuji Esoh +11 more
200813 citations Open access
Semantic Scholar
Hyponatremia in Hepatocellular Carcinoma Complicating with Cirrhosis
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Ohara +6 more
2015Journal of Cancer11 citations Open access
Semantic Scholar
Clinical significance of the FIB-4 index for non-B non-C hepatocellular carcinoma treated with surgical resection.
Hiroki Nishikawa, Y. Osaki, H. Komekado, A. Sakamoto +6 more
2015Oncology Report11 citations Open access
Semantic Scholar
Clinical efficacy of non-transplant therapies in patients with hepatocellular carcinoma with Child-Pugh C liver cirrhosis.
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Ohara +7 more
2014Anticancer Research10 citations
Semantic Scholar
Proposal of the performance status combined Japan Integrated Staging system in hepatocellular carcinoma complicated with cirrhosis.
Hiroki Nishikawa, R. Kita, Toru Kimura, Masatsugu Endo +7 more
2015International Journal of Oncology9 citations Open access
Semantic Scholar
Clinical characteristics of collagenous colitis with linear ulcerations
S. Saito, T. Tsumura, Hiroki Nishikawa, H. Takeda +13 more
2012Digestive Endoscopy9 citations
Semantic Scholar

Frequent co-authors

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Toru Kimura×43
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Toru Kimura — researcher profile on SciRah
Y. Osaki×43
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Y. Osaki — researcher profile on SciRah
Hiroki Nishikawa×38
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Hiroki Nishikawa — researcher profile on SciRah
A. Sakamoto×28
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A. Sakamoto — researcher profile on SciRah

×25

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S. Saito — researcher profile on SciRah

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A. Nasu — researcher profile on SciRah

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H. Takeda — researcher profile on SciRah

N. Nishijima×18

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N. Nishijima — researcher profile on SciRah

H. Komekado×14

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H. Komekado — researcher profile on SciRah

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S. Henmi — researcher profile on SciRah

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A. Arimoto — researcher profile on SciRah

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Y. Ohara — researcher profile on SciRah