Shiro Oka

Author PubWeight™ 85.95‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Endoscopic submucosal dissection for colorectal neoplasia: possibility of standardization. Gastrointest Endosc 2007 2.62
2 Clinical features of pharyngeal intraepithelial neoplasias and outcomes of treatment by endoscopic submucosal dissection. Gastrointest Endosc 2012 2.12
3 Magnifying endoscopy with narrow band imaging for diagnosis of colorectal tumors. Gastrointest Endosc 2007 2.04
4 Narrow-band imaging magnification predicts the histology and invasion depth of colorectal tumors. Gastrointest Endosc 2009 1.92
5 Optical biopsy of GI lesions by reflectance-type laser-scanning confocal microscopy. Gastrointest Endosc 2007 1.87
6 Management of T1 colorectal carcinoma with special reference to criteria for curative endoscopic resection. J Gastroenterol Hepatol 2012 1.72
7 Colorectal endoscopic submucosal dissection: present status and future perspective, including its differentiation from endoscopic mucosal resection. J Gastroenterol 2008 1.71
8 Risk factors for delayed bleeding after endoscopic submucosal dissection for colorectal neoplasms. Int J Colorectal Dis 2014 1.70
9 Improved visibility of lesions of the small intestine via capsule endoscopy with computed virtual chromoendoscopy. Gastrointest Endosc 2011 1.67
10 Frequent somatic mutations of mitochondrial DNA in traditional serrated adenomas but not in sessile serrated adenomas of the colorectum. J Gastroenterol Hepatol 2011 1.47
11 Current status and future perspectives of endoscopic submucosal dissection for colorectal tumors. Dig Endosc 2012 1.47
12 Comparison of detectability of small-bowel lesions between capsule endoscopy and double-balloon endoscopy for patients with suspected small-bowel disease. Gastrointest Endosc 2009 1.39
13 Outcome of endoscopic submucosal dissection for colorectal tumors accompanied by fibrosis. Scand J Gastroenterol 2010 1.34
14 Clinical outcomes of endoscopic submucosal dissection and endoscopic mucosal resection for laterally spreading tumors larger than 20 mm. J Gastroenterol Hepatol 2012 1.34
15 Evaluation of microvessels in colorectal tumors by narrow band imaging magnification. Gastrointest Endosc 2007 1.32
16 Surgical results and related factors for ossification of posterior longitudinal ligament of the thoracic spine: a multi-institutional retrospective study. Spine (Phila Pa 1976) 2008 1.31
17 Usefulness of endoscopic ultrasonography in determining the depth of invasion and indication for endoscopic treatment of early gastric cancer. J Clin Gastroenterol 2009 1.26
18 Warning for unprincipled colorectal endoscopic submucosal dissection: accurate diagnosis and reasonable treatment strategy. Dig Endosc 2012 1.24
19 Evaluation and validation of computed virtual chromoendoscopy in early gastric cancer. Gastrointest Endosc 2009 1.23
20 Improved detectability of small-bowel lesions via capsule endoscopy with computed virtual chromoendoscopy: a pilot study. Scand J Gastroenterol 2011 1.11
21 Clinical significance of angiopoietin-2 expression at the deepest invasive tumor site of advanced colorectal carcinoma. Int J Oncol 2004 1.10
22 Risk factors for bleeding after endoscopic submucosal dissection of gastric epithelial neoplasm. Dig Endosc 2011 1.07
23 Clinical significance of type V(I) pit pattern subclassification in determining the depth of invasion of colorectal neoplasms. World J Gastroenterol 2008 1.06
24 Area of Submucosal Invasion and Width of Invasion Predict Lymph Node Metastasis in pT1 Colorectal Cancers. Dis Colon Rectum 2016 1.06
25 Diagnostic yield of capsule endoscopy vs. double-balloon endoscopy for patients who have undergone total enteroscopy with obscure gastrointestinal bleeding. Hepatogastroenterology 2012 1.04
26 En bloc partial vertebrectomy for lung cancer invading the spine after induction chemoradiotherapy. Eur J Cardiothorac Surg 2007 1.04
27 The impact of narrow band imaging for colon polyp detection: a multicenter randomized controlled trial by tandem colonoscopy. J Gastroenterol 2012 1.03
28 Characterization of colorectal tumors using narrow-band imaging magnification: combined diagnosis with both pit pattern and microvessel features. Scand J Gastroenterol 2010 1.02
29 Outcome of endoscopic submucosal dissection for gastric neoplasm in relationship to endoscopic classification of submucosal fibrosis. Gastric Cancer 2012 1.01
30 Relationship between narrow-band imaging magnifying observation and pit pattern diagnosis in colorectal tumors. Digestion 2013 0.99
31 New reduced volume preparation regimen in colon capsule endoscopy. World J Gastroenterol 2012 0.98
32 Endoscopic submucosal dissection for residual early gastric cancer after endoscopic submucosal dissection. Gastrointest Endosc 2012 0.97
33 Lymphatic vessel density at the site of deepest penetration as a predictor of lymph node metastasis in submucosal colorectal cancer. Dis Colon Rectum 2007 0.96
34 Continued use of low-dose aspirin does not increase the risk of bleeding during or after endoscopic submucosal dissection for early gastric cancer. Gastric Cancer 2013 0.96
35 Endoscopic assessment of colorectal cancer with superficial or deep submucosal invasion using magnifying colonoscopy. Clin Endosc 2013 0.95
36 Next-generation narrow band imaging system for colonic polyp detection: a prospective multicenter randomized trial. Int J Colorectal Dis 2015 0.94
37 Current status of colorectal endoscopic submucosal dissection in Japan and other Asian countries: progressing towards technical standardization. Dig Endosc 2012 0.94
38 A computer system to be used with laser-based endoscopy for quantitative diagnosis of early gastric cancer. J Clin Gastroenterol 2015 0.94
39 Characteristic magnifying narrow-band imaging features of colorectal tumors in each growth type. Int J Colorectal Dis 2012 0.93
40 Clinical validity of endoscopic submucosal dissection for submucosal invasive gastric cancer: a single-center study. Gastric Cancer 2011 0.92
41 PARP6, a mono(ADP-ribosyl) transferase and a negative regulator of cell proliferation, is involved in colorectal cancer development. Int J Oncol 2012 0.91
42 Risk factors and management of positive horizontal margin in early gastric cancer resected by en bloc endoscopic submucosal dissection. Gastric Cancer 2014 0.91
43 Current status and future perspectives of endoscopic diagnosis and treatment of diminutive colorectal polyps. Dig Endosc 2014 0.90
44 Prevention of alveolar air leakage after video-assisted thoracic surgery: comparison of the efficacy of methods involving the use of fibrin glue. Thorac Cardiovasc Surg 2011 0.90
45 Remarkable reduction or disappearance of retroodontoid pseudotumors after occipitocervical fusion. Report of three cases. J Neurosurg Spine 2006 0.90
46 Small bowel abnormalities in patients with compensated liver cirrhosis. Dig Dis Sci 2012 0.90
47 Optical biopsy of early gastroesophageal cancer by catheter-based reflectance-type laser-scanning confocal microscopy. J Biomed Opt 2008 0.89
48 Immunohistochemical molecular markers as predictors of curability of endoscopically resected submucosal colorectal cancer. World J Gastroenterol 2007 0.89
49 Computer-aided system for predicting the histology of colorectal tumors by using narrow-band imaging magnifying colonoscopy (with video). Gastrointest Endosc 2012 0.89
50 Characteristics of esophageal squamous cell carcinomas and lugol-voiding lesions in patients with head and neck squamous cell carcinoma. J Clin Gastroenterol 2010 0.89
51 Major predictors of portal hypertensive enteropathy in patients with liver cirrhosis. J Gastroenterol Hepatol 2015 0.89
52 Condition of muscularis mucosae is a risk factor for lymph node metastasis in T1 colorectal carcinoma. Surg Endosc 2013 0.88
53 Towards safer and appropriate application of endoscopic submucosal dissection for T1 colorectal carcinoma as total excisional biopsy: future perspectives. Dig Endosc 2014 0.88
54 Outcome of patients who have undergone total enteroscopy for obscure gastrointestinal bleeding. World J Gastroenterol 2012 0.87
55 Clinical outcomes of endoscopic submucosal dissection for rectal tumor close to the dentate line. Gastrointest Endosc 2012 0.87
56 Is Occult Obscure Gastrointestinal Bleeding a Definite Indication for Capsule Endoscopy? A Retrospective Analysis of Diagnostic Yield in Patients with Occult versus Overt Bleeding. Gastroenterol Res Pract 2013 0.87
57 Effectiveness of polaprezinc for low-dose aspirin-induced small-bowel mucosal injuries as evaluated by capsule endoscopy: a pilot randomized controlled study. BMC Gastroenterol 2013 0.86
58 Quantitative analysis and development of a computer-aided system for identification of regular pit patterns of colorectal lesions. Gastrointest Endosc 2010 0.85
59 Advanced method for evaluation of gastric cancer risk by serum markers: determination of true low-risk subjects for gastric neoplasm. Helicobacter 2013 0.85
60 Characteristic epithelium with low-grade atypia appears on the surface of gastric cancer after successful Helicobacter pylori eradication therapy. Helicobacter 2014 0.84
61 Clinical significance of thrombospondin-1 expression in relation to vascular endothelial growth factor and interleukin-10 expression at the deepest invasive tumor site of advanced colorectal carcinoma. Int J Oncol 2003 0.84
62 Usefulness and limitations of transabdominal ultrasonography for detecting small-bowel tumors. Scand J Gastroenterol 2009 0.84
63 A novel extra-wide-angle-view colonoscope: a simulated pilot study using anatomic colorectal models. Gastrointest Endosc 2012 0.84
64 Determining depth of invasion by VN pit pattern analysis in submucosal colorectal carcinoma. Oncol Rep 2002 0.84
65 Clinicopathological features of minute pharyngeal lesions diagnosed by narrow-band imaging endoscopy and biopsy. World J Gastroenterol 2012 0.82
66 Is small-bowel capsule endoscopy effective for diagnosis of esophagogastric lesions related to portal hypertension? J Gastroenterol Hepatol 2014 0.82
67 The effect of Helicobacter pylori eradication therapy on gastric ulcer healing after endoscopic mucosal resection. J Clin Gastroenterol 2006 0.82
68 Clinical outcomes of endoscopic submucosal dissection for early gastric cancer in patients with chronic kidney disease. J Gastroenterol Hepatol 2013 0.82
69 A new method for intraluminal gastrointestinal stromal tumor resection using laparoscopic seromuscular dissection technique. Dig Surg 2010 0.82
70 Predicting the absence of lymph node metastasis of submucosal invasive gastric cancer: expansion of the criteria for curative endoscopic resection. Scand J Gastroenterol 2010 0.81
71 Clinical significance of angiogenesis in rectal carcinoid tumors. Oncol Rep 2002 0.81
72 Microvascular structure and perfusion imaging of colon cancer by means of contrast-enhanced ultrasonography. Abdom Imaging 2012 0.81
73 Endoscopic submucosal dissection as total excisional biopsy for clinical T1 colorectal carcinoma. Digestion 2015 0.80
74 Predicting the clinical response to cytapheresis in steroid-refractory or -dependent ulcerative colitis using contrast-enhanced ultrasonography. Scand J Gastroenterol 2009 0.80
75 Is it possible to discriminate between neoplastic and nonneoplastic lesions in ulcerative colitis by magnifying colonoscopy? Inflamm Bowel Dis 2014 0.79
76 Risk factors for vertical incomplete resection in endoscopic submucosal dissection as total excisional biopsy for submucosal invasive colorectal carcinoma. Int J Colorectal Dis 2013 0.78
77 Quantitative analysis of colorectal lesions observed on magnified endoscopy images. J Gastroenterol 2011 0.78
78 Comparison of small-bowel mucosal injury between low-dose aspirin and non-aspirin non-steroidal anti-inflammatory drugs: a capsule endoscopy study. Digestion 2014 0.78
79 Clinicopathologic features of hyperplastic/serrated polyposis syndrome in Japan. J Gastroenterol Hepatol 2013 0.78
80 Clinical usefulness of classification by transabdominal ultrasonography for detection of small-bowel stricture. Scand J Gastroenterol 2013 0.77
81 Enhanced expression of PP1gamma1, a catalytic subunit isoform of protein phosphatase type1 and expression of telomerase activity in Ewing's sarcoma cells. Res Commun Mol Pathol Pharmacol 2003 0.77
82 Clinical outcomes of percutaneous curettage and continuous irrigation for pyogenic spondylitis. Surg Neurol 2009 0.77
83 Quantitative identification of mucosal gastric cancer under magnifying endoscopy with flexible spectral imaging color enhancement. J Gastroenterol Hepatol 2013 0.77
84 Percutaneous discectomy-continuous irrigation and drainage for tuberculous lumbar spondylitis: a report of two cases. Case Rep Med 2009 0.75
85 Response. Gastrointest Endosc 2013 0.75
86 Knack and practical technique of colonoscopic treatment focused on endoscopic mucosal resection using snare. Dig Endosc 2009 0.75
87 Triple-layer sealing with absorptive mesh and fibrin glue is effective in preventing air leakage after segmentectomy: results from experiments and clinical study. Eur J Cardiothorac Surg 2013 0.75
88 Evaluation for the Clinical Efficacy of Colon Capsule Endoscopy in the Detection of Laterally Spreading Tumors. Digestion 2017 0.75
89 [Treatment of colorectal carcinoma having submucosal invasion]. Nihon Rinsho 2003 0.75
90 [Advances of an internal treatment for early colorectal carcinoma]. Nihon Shokakibyo Gakkai Zasshi 2004 0.75
91 Natural course of lugol-voiding lesions in patients with superficial esophageal squamous cell carcinoma. Digestion 2010 0.75
92 Basic in vitro experiment on the adhesive effects of sheet-type hemostatic agents used in combination with a liquid fibrin sealant. J Endourol 2011 0.75
93 [Application of colonoscopy for patients with colonic adenoma--evaluation of the treatment efficacy and follow-up study]. Nihon Naika Gakkai Zasshi 2007 0.75
94 [Prevention of colorectal cancer and endoscopic management: discussion]. Nihon Shokakibyo Gakkai Zasshi 2012 0.75
95 Compliance with standard precautions among gastrointestinal endoscopists and endoscopy nurses in Japan. Am J Infect Control 2011 0.75
96 Feasibility of spiral enteroscopy in Japanese patients: study in two tertiary hospitals. Dig Endosc 2012 0.75
97 Combination of a liquid fibrin sealant with sheet-type hemostatic agents: experimental evaluation in partial nephrectomy animal model. Int J Urol 2011 0.75
98 [Endoscopic treatment for early colorectal carcinoma: EMR or ESD?]. Nihon Rinsho 2011 0.75
99 Initial experience with catheter probe US when using a multibending endoscope. Gastrointest Endosc 2004 0.75
100 [Diagnosis and treatment for benign small bowel tumor]. Nihon Rinsho 2008 0.75