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Kamba E, Murakami T, Tsugawa N, Nomura K, Haga K, Akazawa Y, Fukushima H, Ueyama H, Matsumoto K, Shibuya T, Terai T, Yao T, Nagahara A. Novel physiological analysis using blood flow velocity for colonic polyps: Pilot study. Endosc Int Open 2024; 12:E781-E787. [PMID: 38904061 PMCID: PMC11188754 DOI: 10.1055/a-2306-9218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 03/27/2024] [Indexed: 06/22/2024] Open
Abstract
Real-time visualization of red blood cell flow inside subepithelial microvessels is performed with magnifying endoscopy. However, microvascular blood flow velocity in the colorectum has not been investigated. Here, we aimed to evaluate the blood flow velocity of microvessels of colonic polyps and to compare it with that of surrounding mucosa. We examined 50 lesions, including 30 adenomas (ADs) and 20 hyperplastic polyps (HPs). Blood flow velocities of lesions and their surrounding mucosa were evaluated using magnifying blue laser imaging (BLI) prior to endoscopic resection. Calculation of mean blood flow velocities was based on mean movement distance of one tagged red blood cell using split video images of magnifying BLI. Mean microvascular blood flow velocity was significantly lower in ADs (1.65±0.66 mm/sec; range 0.46-2.90) than in HPs (2.83±1.10 mm/sec; 1.07-4.50) or the surrounding mucosa (3.73±1.11 mm/sec; 1.80-6.20; P <0.001). The blood flow velocity rate compared with the surrounding mucosa was significantly lower in ADs (0.41±0.16; 0.10-0.82) than in HPs (0.89±0.25; 0.46-1.51; P <0.001). We found that mean microvascular blood flow velocity was significantly lower in ADs than in HPs and the surrounding non-neoplastic mucosa. These findings indicate that a novel dynamic approach with microvascular blood flow velocity using magnifying endoscopy may be useful in assessing physiological differences between ADs and HPs.
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Affiliation(s)
- Eiji Kamba
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | - Takashi Murakami
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | - Naoki Tsugawa
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | - Kei Nomura
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | - Keiichi Haga
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | - Yoichi Akazawa
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | | | - Hiroya Ueyama
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | - Kenshi Matsumoto
- Department of Gastroenterology, Nihonbashi Muromachi Mitsui Tower Midtown Clinic, Tokyo, Japan
| | - Tomoyoshi Shibuya
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
| | - Takeshi Terai
- Department of Gastroenterology, Terai Clinic, Tokyo, Japan
| | - Takashi Yao
- Department of Human Pathology, Juntendo University, Bunkyo-ku, Japan
| | - Akihito Nagahara
- Department of Gastroenterology, Juntendo University, Bunkyo-ku, Japan
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Islam MA, Talukder L, Al MF, Sarker SK, Muyeen SM, Das P, Hasan MM, Das SK, Islam MM, Islam MR, Moyeen SI, Badal FR, Ahamed MH, Abhi SH. A review on self-healing featured soft robotics. Front Robot AI 2023; 10:1202584. [PMID: 37953963 PMCID: PMC10637358 DOI: 10.3389/frobt.2023.1202584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 09/19/2023] [Indexed: 11/14/2023] Open
Abstract
Soft robots are becoming more popular because they can solve issues stiff robots cannot. Soft component and system design have seen several innovations recently. Next-generation robot-human interactions will depend on soft robotics. Soft material technologies integrate safety at the material level, speeding its integration with biological systems. Soft robotic systems must be as resilient as biological systems in unexpected, uncontrolled situations. Self-healing materials, especially polymeric and elastomeric ones, are widely studied. Since most currently under-development soft robotic systems are composed of polymeric or elastomeric materials, this finding may provide immediate assistance to the community developing soft robots. Self-healing and damage-resilient systems are making their way into actuators, structures, and sensors, even if soft robotics remains in its infancy. In the future, self-repairing soft robotic systems composed of polymers might save both money and the environment. Over the last decade, academics and businesses have grown interested in soft robotics. Despite several literature evaluations of the soft robotics subject, there seems to be a lack of systematic research on its intellectual structure and development despite the rising number of articles. This article gives an in-depth overview of the existing knowledge base on damage resistance and self-healing materials' fundamental structure and classifications. Current uses, problems with future implementation, and solutions to those problems are all included in this overview. Also discussed are potential applications and future directions for self-repairing soft robots.
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Affiliation(s)
- Md. Ariful Islam
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Labanya Talukder
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Md. Firoj Al
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Subrata K. Sarker
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - S. M. Muyeen
- Department of Electrical Engineering, Qatar University, Doha, Qatar
| | - Prangon Das
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Md. Mehedi Hasan
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Sajal K. Das
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Md. Manirul Islam
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Md. Robiul Islam
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Sumaya Ishrat Moyeen
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Faisal R. Badal
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Md. Hafiz Ahamed
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Sarafat Hussain Abhi
- Department of Mechatronics Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
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Zhang YJ, Wen W, Li F, Jian Y, Zhang CM, Yuan MX, Yang Y, Chen FL. Chicken skin mucosa surrounding small colorectal cancer could be an endoscopic predictive marker of submucosal invasion. World J Gastrointest Oncol 2023; 15:1062-1072. [PMID: 37389111 PMCID: PMC10302994 DOI: 10.4251/wjgo.v15.i6.1062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/23/2023] [Accepted: 04/23/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Chicken skin mucosa (CSM) surrounding colon polyps is a common endoscopic finding with pale yellow-speckled mucosa during a colonoscopy screening. Although reports about CSM surrounding small colorectal cancer are scarce, and its clinical significance in intramucosal and submucosal cancers is unclear, previous studies have suggested it could be an endoscopic predictive marker for colonic neoplastic and advanced polyps. Currently, because of the inaccurate preoperative evaluation by endoscopists, many small colorectal cancers, particularly lesions with a diameter < 2 cm, are improperly treated. Therefore, more effective methods are required to better assess the depth of the lesion before treatment.
AIM To explore potential markers of small colorectal cancer early invasion under white light endoscopy, providing patients with better treatment alternatives.
METHODS This retrospective cross-sectional study included 198 consecutive patients [233 early colorectal cancers (ECCs)] who underwent endoscopy or surgical procedures at the Digestive Endoscopy Center of Chengdu Second People’s Hospital between January 2021 and August 2022. The participants had pathologically confirmed colorectal cancer with a lesion diameter < 2 cm and received endoscopic or surgical treatment, including endoscopic mucosal resection and submucosal dissection. Clinical pathology and endoscopy parameters, including tumor size, invasion depth, anatomical position, and morphology, were reviewed. Fisher’s exact test, the χ2 test, and Student’s t-test were used to analyze the patient’s basic characteristics. Logistic regression analysis was used to examine the relationship between morphological characteristics, size, CSM prevalence, and ECC invasion depth under white light endoscopy. Statistical significance was set at P < 0.05.
RESULTS The submucosal carcinoma (SM stage) was larger than the mucosal carcinoma (M stage) with a significant difference (17.2 ± 4.1 vs 13.4 ± 4.6 mm, P < 0.01). M- and SM-stage cancers were common in the left colon; however, no significant differences were found between them (151/196, 77% and 32/37, 86.5%, respectively, P = 0.199). The endoscopic features of colorectal cancer revealed that CSM, depressed areas with clear boundaries, and erosion or ulcer bleeding were more common in the SM-stage cancer group than in the M-stage cancer group (59.5% vs 26.2%, 46% vs 8.7%, and 27.3% vs 4.1%, respectively, P < 0.05). CSM prevalence in this study was 31.3% (73/233). The positive rates of CSM in flat, protruded, and sessile lesions were 18% (11/61), 30.6% (30/98), and 43.2% (32/74), respectively, with significant differences (P = 0.007).
CONCLUSION CSM-related small colorectal cancer was primarily located in the left colon and could be a predictive marker of submucosal invasion in the left colon.
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Affiliation(s)
- Ying-Jie Zhang
- Department of Digestive Diseases, Chengdu Second People’s Hospital, Chengdu 610000, Sichuan Province, China
| | - Wu Wen
- Department of Digestive Diseases, Chengdu Second People’s Hospital, Chengdu 610000, Sichuan Province, China
| | - Fan Li
- Department of Digestive Diseases, Chengdu Second People’s Hospital, Chengdu 610000, Sichuan Province, China
| | - Yi Jian
- Department of Digestive Diseases, Chengdu Second People’s Hospital, Chengdu 610000, Sichuan Province, China
| | - Chuan-Ming Zhang
- Department of Digestive Diseases, Chengdu Second People’s Hospital, Chengdu 610000, Sichuan Province, China
| | - Meng-Xia Yuan
- Department of Digestive Diseases, Chengdu Second People’s Hospital, Chengdu 610000, Sichuan Province, China
| | - Ye Yang
- Graduate School, Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Feng-Lin Chen
- Graduate School, Chengdu Medical College, Chengdu 610000, Sichuan Province, China
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Nam K, Park N, Lee S, Jeon S, Lee J, Hong SM, Hwang SW, Park SH, Yang DH, Ye BD, Byeon JS, Yang SK, Lee JH, Kim DH, Kim KH, Myung SJ. Feasibility of moxifloxacin and proflavine dual fluorescence imaging for detecting gastrointestinal neoplastic lesions: A prospective study. Lasers Surg Med 2023; 55:378-389. [PMID: 36802075 DOI: 10.1002/lsm.23640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/27/2022] [Accepted: 01/27/2023] [Indexed: 02/19/2023]
Abstract
OBJECTIVES High-contrast and high-resolution imaging techniques would enable real-time sensitive detection of the gastrointestinal lesions. This study aimed to investigate the feasibility of novel dual fluorescence imaging using moxifloxacin and proflavine in the detection of neoplastic lesions of the human gastrointestinal tract. METHODS Patients with the colonic and gastric neoplastic lesions were prospectively enrolled. The lesions were biopsied with forceps or endoscopically resected. Dual fluorescence imaging was performed by using custom axially swept wide-field fluorescence microscopy after topical moxifloxacin and proflavine instillation. Imaging results were compared with both confocal imaging with cell labeling and conventional histological examination. RESULTS Ten colonic samples (one normal mucosa, nine adenomas) from eight patients and six gastric samples (one normal mucosa, five adenomas) from four patients were evaluated. Dual fluorescence imaging visualized detail cellular structures. Regular glandular structures with polarized cell arrangement were observed in normal mucosa. Goblet cells were preserved in normal colonic mucosa. Irregular glandular structures with scanty cytoplasm and dispersed elongated nuclei were observed in adenomas. Goblet cells were scarce or lost in the colonic lesions. Similarity analysis between moxifloxacin and proflavine imaging showed relatively high correlation values in adenoma compared with those in normal mucosa. Dual fluorescence imaging showed good detection accuracies of 82.3% and 86.0% in the colonic and the gastric lesions, respectively. CONCLUSIONS High-contrast and high-resolution dual fluorescence imaging was feasible for obtaining detail histopathological information in the gastrointestinal neoplastic lesions. Further studies are needed to develop dual fluorescence imaging as an in vivo real-time visual diagnostic method.
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Affiliation(s)
- Kwangwoo Nam
- Department of Gastroenterology, Dankook University Hospital, Dankook University College of Medicine, Cheonan, South Korea.,Digestive Diseases Research Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Noseong Park
- Division of Interdisciplinary Bioscience and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Seunghun Lee
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea
| | - Suil Jeon
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Jungbin Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Seung-Mo Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sung Wook Hwang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sang Hyoung Park
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Dong-Hoon Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Byong Duk Ye
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jeong-Sik Byeon
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Suk-Kyun Yang
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jeong Hoon Lee
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Do Hoon Kim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ki Hean Kim
- Division of Interdisciplinary Bioscience and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, South Korea.,Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Seung-Jae Myung
- Digestive Diseases Research Center, University of Ulsan College of Medicine, Seoul, South Korea.,Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,EDIS Biotech, Seoul, South Korea
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5
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Yin Z, Yao C, Zhang L, Qi S. Application of artificial intelligence in diagnosis and treatment of colorectal cancer: A novel Prospect. Front Med (Lausanne) 2023; 10:1128084. [PMID: 36968824 PMCID: PMC10030915 DOI: 10.3389/fmed.2023.1128084] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/13/2023] [Indexed: 03/29/2023] Open
Abstract
In the past few decades, according to the rapid development of information technology, artificial intelligence (AI) has also made significant progress in the medical field. Colorectal cancer (CRC) is the third most diagnosed cancer worldwide, and its incidence and mortality rates are increasing yearly, especially in developing countries. This article reviews the latest progress in AI in diagnosing and treating CRC based on a systematic collection of previous literature. Most CRCs transform from polyp mutations. The computer-aided detection systems can significantly improve the polyp and adenoma detection rate by early colonoscopy screening, thereby lowering the possibility of mutating into CRC. Machine learning and bioinformatics analysis can help screen and identify more CRC biomarkers to provide the basis for non-invasive screening. The Convolutional neural networks can assist in reading histopathologic tissue images, reducing the experience difference among doctors. Various studies have shown that AI-based high-level auxiliary diagnostic systems can significantly improve the readability of medical images and help clinicians make more accurate diagnostic and therapeutic decisions. Moreover, Robotic surgery systems such as da Vinci have been more and more commonly used to treat CRC patients, according to their precise operating performance. The application of AI in neoadjuvant chemoradiotherapy has further improved the treatment and efficacy evaluation of CRC. In addition, AI represented by deep learning in gene sequencing research offers a new treatment option. All of these things have seen that AI has a promising prospect in the era of precision medicine.
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Affiliation(s)
- Zugang Yin
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Chenhui Yao
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- *Correspondence: Chenhui Yao,
| | - Limin Zhang
- Department of Respiratory, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Shaohua Qi
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, China
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Chang JY. Artificial intelligence-based colorectal polyp histology prediction using narrow-band image-magnifying colonoscopy: a stepping stone for clinical practice. Clin Endosc 2022; 55:699-700. [PMID: 36205047 PMCID: PMC9539285 DOI: 10.5946/ce.2022.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 04/26/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Ji Young Chang
- Health Promotion Center, Ewha Womans University Seoul Hospital, Seoul, Korea
- Corresponding author: Ji Young Chang Health Promotion Center, Ewha Womans University Seoul Hospital, 260 Gonghang-daero, Gangseo-gu, Seoul 07804, Korea E-mail:
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Racz I, Horvath A, Horvath Z. Response to Artificial intelligence-based colorectal polyp histology prediction using narrow-band image-magnifying colonoscopy: a stepping stone for clinical practice. Clin Endosc 2022; 55:701-702. [PMID: 36205048 PMCID: PMC9539298 DOI: 10.5946/ce.2022.123.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Istvan Racz
- Department of Internal Medicine and Gastroenterology, Petz Aladar University Teaching Hospital, Gyor, Hungary
| | - Andras Horvath
- Department of Physics and Chemistry, Szechenyi Istvan University, Gyor, Hungary
| | - Zoltán Horvath
- Department of Mathematics and Informatics, Szechenyi Istvan University, Gyor, Hungary
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8
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Hong SW, Byeon JS. Endoscopic diagnosis and treatment of early colorectal cancer. Intest Res 2022; 20:281-290. [PMID: 35916019 PMCID: PMC9344247 DOI: 10.5217/ir.2021.00169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/23/2022] [Indexed: 11/15/2022] Open
Abstract
Early colorectal cancer refers to cancer in the colorectum that is confined to the mucosa or submucosa and does not invade the muscularis propria, irrespective of lymph node or distant metastasis. As the number of persons undergoing screening colonoscopy increases, the proportion of patients diagnosed with precancerous colorectal lesions and early colorectal cancer also increases. In the last decade, innovative optical technologies for endoscopic diagnosis have been introduced and endoscopic treatment techniques such as endoscopic submucosal dissection have provided major breakthroughs in the management of early colorectal cancer. With these remarkable developments, endoscopic treatment has established itself as an alternative to surgical resection in the treatment of early colorectal cancer. This review will discuss the endoscopic diagnosis and treatment of early colorectal cancer. Furthermore, the unmet needs in this field and the latest research addressing those issues will be summarized.
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Affiliation(s)
- Seung Wook Hong
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jeong-Sik Byeon
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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9
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Lee HH. Emergence of a New Optical Marker for Colorectal Neoplasms: To What Extent Should We Accept It? Clin Endosc 2022; 55:315-317. [PMID: 35184526 PMCID: PMC8995980 DOI: 10.5946/ce.2021.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 11/24/2022] Open
Affiliation(s)
- Han Hee Lee
- Division of Gastroenterology, Department of Internal Medicine College of Medicine, The Catholic University of Korea Seoul, Korea
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10
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Lee YM, Song KH, Koo HS, Lee CS, Ko I, Lee SH, Huh KC. Colonic Chicken Skin Mucosa Surrounding Colon Polyps Is an Endoscopic Predictive Marker for Colonic Neoplastic Polyps. Gut Liver 2022; 16:754-763. [PMID: 35000932 PMCID: PMC9474497 DOI: 10.5009/gnl210271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/13/2021] [Accepted: 10/21/2021] [Indexed: 12/03/2022] Open
Abstract
Background/Aims Narrow band imaging provides an accurate diagnosis of colonic polyps. However, these diagnostic modalities are not used as standard endoscopic tools in most institutions. This study aims to investigate whether the chicken skin mucosa (CSM) surrounding the colon polyp yields additional information about colorectal polyps, including histological differentiation of neoplastic and non-neoplastic polyps, under conventional white light colonoscopy. Methods This study prospectively observed 173 patients who underwent endoscopic polypectomy and reviewed the clinical data and pathologic reports of 313 polyps from a university hospital. Two endoscopists each performed colonoscopy and polypectomy and assessed the CSM. The association between CSM surrounding colorectal polyps and histology was analyzed. Results The majority (91.3%) of CSM-positive polyps were neoplastic (sensitivity, 37.90%; specificity, 86.15%; p<0.001). In logistic regression, the neoplastic polyps were associated with positive CSM (adjusted odds ratio [OR], 3.51; 95% confidence interval [CI], 1.45 to 9.25; p=0.007), protruded polyps (adjusted OR, 4.85; 95% CI, 1.65 to 17.23; p=0.008), and neoplastic histology–associated pit pattern (pit III, IV, and V) (adjusted OR, 10.14; 95% CI, 4.85 to 22.12; p=0.000). Furthermore, advanced adenomas were associated with positive CSM (adjusted OR, 5.64; 95% CI, 1.77 to 20.28; p=0.005), protruded polyps (adjusted OR, 3.30; 95% CI, 1.15 to 9.74; p= 0.026), and ≥10 cm polyp size (adjusted OR, 18.56; 95% CI, 3.89 to 147.01; p=0.001). Conclusions Neoplastic and advanced polyps were associated with CSM-positive polyps. These findings suggest that CSM is a useful marker in differentiating neoplastic polyps and advanced polyps under conventional white colonoscopy.
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Affiliation(s)
- Yu Mi Lee
- Health Screening and Promotion Center, Konyang University Hospital, Daejeon, Korea.,Department of Gastroenterology, College of Medicine, Konyang University, Daejeon, Korea
| | - Kyung Ho Song
- Department of Gastroenterology, CHA University Ilsan Medical Center, Ilsan, Korea
| | - Hoon Sup Koo
- Department of Gastroenterology, College of Medicine, Konyang University, Daejeon, Korea
| | - Choong-Sik Lee
- Department of Pathology, College of Medicine, Konyang University, Daejeon, Korea
| | - Inseok Ko
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, Korea
| | - Sang Hyuk Lee
- Department of Gastroenterology, College of Medicine, Konyang University, Daejeon, Korea
| | - Kyu Chan Huh
- Department of Gastroenterology, College of Medicine, Konyang University, Daejeon, Korea
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Guo H, Li Y, Qi W, Xi L. Photoacoustic endoscopy: A progress review. JOURNAL OF BIOPHOTONICS 2020; 13:e202000217. [PMID: 32935920 DOI: 10.1002/jbio.202000217] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/20/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
Endoscopy has been widely used in biomedical imaging and integrated with various optical and acoustic imaging modalities. Photoacoustic imaging (PAI), one of the fastest growing biomedical imaging modalities, is a noninvasive and nonionizing method that owns rich optical contrast, deep acoustic penetration depth, multiscale and multiparametric imaging capability. Hence, it is preferred to miniaturize the volume of PAI and develop an emerged endoscopic imaging modality referred to as photoacoustic endoscopy (PAE). It has been developed for more than one decade since the first report of PAE. Unfortunately, until now, there is no mature photoacoustic endoscopic technique recognized in clinic due to various technical limitations. To address this concern, recent development of new scanning mechanisms, adoption of novel optical/acoustic devices, utilization of superior computation methods and exploration of multimodality strategies have significantly promoted the progress of PAE toward clinic. In this review, we comprehensively reviewed recent progresses in single- and multimodality PAE with new physics, mechanisms and strategies to achieve practical devices for potential applicable scenarios including esophageal, gastrointestinal, urogenital and intravascular imaging. We ended this review with challenges and prospects for future development of PAE.
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Affiliation(s)
- Heng Guo
- School of Physics, University of Electronic Science and Technology of China, Chengdu, China
| | - Ying Li
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Weizhi Qi
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Lei Xi
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
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12
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Zhang Y, Chen HY, Zhou XL, Pan WS, Zhou XX, Pan HH. Diagnostic efficacy of the Japan Narrow-band-imaging Expert Team and Pit pattern classifications for colorectal lesions: A meta-analysis. World J Gastroenterol 2020; 26:6279-6294. [PMID: 33177800 PMCID: PMC7596636 DOI: 10.3748/wjg.v26.i40.6279] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/26/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pit pattern classification using magnifying chromoendoscopy is the established method for diagnosing colorectal lesions. The Japan Narrow-band-imaging (NBI) Expert Team (JNET) classification is a novel NBI magnifying endoscopic classification that focuses on the vessel, and surface patterns.
AIM To determine the diagnostic efficacy of each category of the JNET and Pit pattern classifications for colorectal lesions.
METHODS A systematic literature search was performed using PubMed, Embase, the Cochrane Library, and Web of Science databases. The pooled sensitivity, specificity, diagnostic odds ratio, and area under the summary receiver operating characteristic curve of each category of the JNET and Pit pattern classifications were calculated.
RESULTS A total of 19227 colorectal lesions in 31 studies were included. The diagnostic performance of the JNET classification was equivalent to the Pit pattern classification in each corresponding category. The pooled sensitivity, specificity, and area under the curve (AUC) for each category of the JNET classification were as follows: 0.73 (95%CI: 0.55-0.85), 0.99 (95%CI: 0.97-1.00), and 0.97 (95%CI: 0.95-0.98), respectively, for Type 1; 0.88 (95%CI: 0.78-0.94), 0.72 (95%CI: 0.64-0.79), and 0.84 (95%CI: 0.81-0.87), respectively, for Type 2A; 0.56 (95%CI: 0.47-0.64), 0.91 (95%CI: 0.79-0.96), and 0.72 (95%CI: 0.68-0.76), respectively, for Type 2B; 0.51 (95%CI: 0.42-0.61), 1.00 (95%CI: 1.00-1.00), and 0.90 (95%CI: 0.87-0.93), respectively, for Type 3.
CONCLUSION This meta-analysis suggests that the diagnostic efficacy of the JNET classification may be equivalent to that of the Pit pattern classification. However, due to its simpler and clearer clinical application, the JNET classification should be promoted for the classification of colorectal lesions, and to guide the treatment strategy.
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Affiliation(s)
- Yu Zhang
- Department of Gastroenterology, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, China
| | - Hui-Yan Chen
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Xiao-Lu Zhou
- Department of Medical College, The Medical College of Qingdao University, Qingdao 266071, Shandong Province, China
| | - Wen-Sheng Pan
- Department of Gastroenterology, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, China
| | - Xin-Xin Zhou
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Hang-Hai Pan
- Department of Gastroenterology, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, China
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