scholarly journals NBI and NBI Combined with Magnifying Colonoscopy

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Mineo Iwatate ◽  
Taro Ikumoto ◽  
Santa Hattori ◽  
Wataru Sano ◽  
Yasushi Sano ◽  
...  
Keyword(s):  
Narrow Band Imaging ◽  
Adenomatous Polyps ◽  
Screening Colonoscopy ◽  
Histological Evaluation ◽  
Early Colorectal Cancer ◽  
Depth Of Invasion ◽  
Diagnostic Strategies ◽  
Magnifying Colonoscopy ◽  
Magnifying Chromoendoscopy ◽  
Meta Analyses

Although magnifying chromoendoscopy had been a reliable diagnostic tool, narrow-band imaging (NBI) has been developed in Japan since 1999 and has now replaced the major role of chromoendoscopy because of its convenience and simplicity. In this paper, we principally describe the efficacy of magnifying chromoendoscopy and magnifying colonoscopy with NBI for detection, histological prediction, estimation of the depth of early colorectal cancer, and future prospects. Although some meta-analyses have concluded that NBI is not superior to white light imaging for detection of adenomatous polyps in screening colonoscopy, NBI with magnification colonoscopy is useful for histological prediction, or for estimating the depth of invasion. To standardize these diagnostic strategies, we will focus on the NBI International Colorectal Endoscopic (NICE) classification proposed for use by endoscopists with or without a magnifying endoscope. However, more prospective research is needed to prove that this classification can be applied with satisfactory availability, feasibility, and reliability. In the future, NBI might contribute to the evaluation of real-time histological prediction during colonoscopy, which has substantial benefits for both reducing the risk of polypectomy and saving the cost of histological evaluation by resecting and discarding diminutive adenomatous polyps (resect and discard strategy).

scholarly journals A Comparison of Magnifying Chromoendoscopy Versus Narrow Band Imaging in the Diagnosis of Depth of Invasion for Early Colorectal Cancers

2011 ◽  
Vol 23 (2) ◽  
pp. 129-144
Author(s):  
Yasutoshi KOBAYASHI ◽  
Shin-ei KUDO ◽  
Hideyuki MIYACHI ◽  
Toshihisa HOSOYA ◽  
Takemasa HAYASHI ◽  
...  
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Cancers ◽  
Depth Of Invasion ◽  
Magnifying Chromoendoscopy

Diagnosis of depth of invasion for early colorectal cancer using magnifying colonoscopy

2010 ◽  
Vol 25 (5) ◽  
pp. 905-912 ◽  
Author(s):  
Hisatomo Ikehara ◽  
Yutaka Saito ◽  
Takahisa Matsuda ◽  
Toshio Uraoka ◽  
Yoshitaka Murakami
Keyword(s):  
Colorectal Cancer ◽  
Early Colorectal Cancer ◽  
Depth Of Invasion ◽  
Magnifying Colonoscopy

scholarly journals Scope of Artificial Intelligence in Screening and Diagnosis of Colorectal Cancer

2020 ◽  
Vol 9 (10) ◽  
pp. 3313 ◽  
Author(s):  
Hemant Goyal ◽  
Rupinder Mann ◽  
Zainab Gandhi ◽  
Abhilash Perisetti ◽  
Aman Ali ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Colorectal Cancer ◽  
Cancer Screening ◽  
Colorectal Cancer Screening ◽  
Narrow Band Imaging ◽  
Screening Methods ◽  
Polyp Detection ◽  
Mortality And Morbidity ◽  
Magnifying Chromoendoscopy

Globally, colorectal cancer is the third most diagnosed malignancy. It causes significant mortality and morbidity, which can be reduced by early diagnosis with an effective screening test. Integrating artificial intelligence (AI) and computer-aided detection (CAD) with screening methods has shown promising colorectal cancer screening results. AI could provide a “second look” for endoscopists to decrease the rate of missed polyps during a colonoscopy. It can also improve detection and characterization of polyps by integration with colonoscopy and various advanced endoscopic modalities such as magnifying narrow-band imaging, endocytoscopy, confocal endomicroscopy, laser-induced fluorescence spectroscopy, and magnifying chromoendoscopy. This descriptive review discusses various AI and CAD applications in colorectal cancer screening, polyp detection, and characterization.

scholarly journals Retrospective analysis of LNM risk factors and the effect of chemotherapy in early colorectal cancer: A Chinese multicenter study

BMC Cancer ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Chunyan Zeng ◽  
Dandan Xiong ◽  
Fei Cheng ◽  
Qingtian Luo ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Multicenter Study ◽  
Tumor Size ◽  
Lymphovascular Invasion ◽  
Univariate Analysis ◽  
Tumor Location ◽  
Early Colorectal Cancer ◽  
Depth Of Invasion ◽  
Significant Difference

Abstract Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors of LNM and the effectiveness of postoperative chemotherapy in patients with ECC. Methods We retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January 2007 and October 2018. The correlations between LNM and sex, age, tumor size, tumor location, endoscopic morphology, pathology, depth of invasion and tumor budding (TB) were directly estimated based on postoperative pathological analysis. We also observed the overall survival (OS) and recurrence in ECC patients with and without LNM after matching according to baseline measures. Results In total, 473 ECC patients were observed, 288 patients were enrolled, and 17 patients had LNM (5.90%). The univariate analysis revealed that tumor size, pathology, and lymphovascular invasion were associated with LNM in ECC (P = 0.026, 0.000, and 0.000, respectively), and the multivariate logistic regression confirmed that tumor size, pathology, and lymphovascular invasion were risk factors for LNM (P = 0.021, 0.023, and 0.001, respectively). There were no significant differences in OS and recurrence between the ECC patients with and without LNM after matching based on baseline measures (P = 0.158 and 0.346, respectively), and no significant difference was observed between chemotherapy and no chemotherapy in ECC patients without LNM after surgery (P = 0.729 and 0.052). Conclusion Tumor size, pathology, and lymphovascular invasion are risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve OS and recurrence in patients with LNM but not always in ECC patients without LNM.

Narrow Band Imaging: Is the Observation of Vascular Pattern in Neoplastic Colonic Lesions By Using Magnifying Colonoscopy Useful Method Or Not?

2006 ◽  
Vol 63 (5) ◽  
pp. AB217 ◽  
Author(s):  
Shoichi Saito ◽  
Masahiro Ikegami ◽  
Hiroshi Arakawa ◽  
Hisao Tajiri ◽  
Osamu Tsuruta
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Vascular Pattern ◽  
Magnifying Colonoscopy
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