Results 71 to 80 of about 55,899 (209)

Advancements and limitations of image‐enhanced endoscopy in colorectal lesion diagnosis and treatment selection: A narrative review

DEN Open, Volume 6, Issue 1, April 2026.
Abstract Colorectal cancer (CRC) is a leading cause of cancer‐related mortality, highlighting the need for early detection and accurate lesion characterization. Traditional white‐light imaging has limitations in detecting lesions, particularly those with flat morphology or minimal color contrast with the surrounding mucosa.
Taku Sakamoto, Shintaro Akiyama, Toshiaki Narasaka, Kiichiro Tuchiya   +3 more
wiley   +1 more source

Sparsity-Based Joint NBI and Impulse Noise Mitigation in Hybrid PLC-Wireless Transmissions

IEEE Access, 2018
We propose a new sparsity-aware framework to model and mitigate the joint effects of narrow-band interference (NBI) and impulsive noise (IN) in hybrid powerline and unlicensed wireless communication systems.
Mahmoud Elgenedy, Mohamed Mokhtar Awadin, Ridha Hamila, Waheed U. Bajwa, Ahmed S. Ibrahim, Naofal Al-Dhahir   +5 more
doaj   +1 more source

Visibility Evaluation of Fundic Gland Polyp Associated With Proton Pump Inhibitor in Texture and Color Enhancement Imaging

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives A ‘gray color sign’ (GCS) is a new endoscopic feature of fundic gland polyp associated with proton pump inhibitor (PPI‐FGP). Here, we compare the ability of texture and color enhancement imaging (TXI) to white light imaging (WLI) with regard to the detection of GCS. Methods In this prospective study, 19 consecutive patients with PPI‐
Ryota Uchida, Hiroya Ueyama, Tsutomu Takeda, Shunsuke Nakamura, Yasuko Uemura, Tomoyo Iwano, Momoko Yamamoto, Hisanori Utsunomiya, Daiki Abe, Shotaro Oki, Nobuyuki Suzuki, Atsushi Ikeda, Yoichi Akazawa, Kumiko Ueda, Mariko Hojo, Shuko Nojiri, Takashi Yao, Akihito Nagahara   +17 more
wiley   +1 more source

Combination of Narrow-band Imaging and Autofluorescence Imaging 
Videobronchoscopy in the Assessment of Lung Cancer

Chinese Journal of Lung Cancer, 2013
Background and objective Narrow-band imaging (NBI) and autofluorescence imaging (AFI) are new bronchoscopy technologies that are important in lung cancer diagnosis.
Zhongbo CHEN, Yiming YU, Shifang SUN, Hongying MA, Qiaoli ZHANG, Dan LV, Bijiong WANG, Chao CAO, Qunli DING, Zaichun DENG   +9 more
doaj   +1 more source

Concurrent Diagnosis of Superficial Esophageal Cancer and Esophageal Achalasia: A Case Report and Literature Review

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT We report a case of a 70‐year‐old woman with esophageal achalasia and concurrent superficial esophageal squamous cell carcinoma. Three adjacent superficial lesions were resected en bloc by endoscopic submucosal dissection (ESD), with no lymphovascular invasion.
Ai Katsumi, Hideki Mori, Noriko Matsuura, Tatsuhiro Masaoka, Yusaku Takatori, Hideomi Tomida, Teppei Akimoto, Hiroko Ando, Motohiko Kato, Takanori Kanai   +9 more
wiley   +1 more source

Barrett's Esophageal Adenocarcinoma with Neuroendocrine Cell Carcinoma Treated by Endoscopic Submucosal Dissection: A Case Report and Literature Review

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Barrett's esophageal adenocarcinoma (BEA) with neuroendocrine cell carcinoma (NEC) is a rare disease with a poor prognosis. We report a case of BEA with NEC treated by endoscopic submucosal dissection (ESD) with en bloc resection and long‐term survival was achieved without additional treatment.
Yo Kubota, Kenji Ishido, Kusutaro Doi, Gen Kitahara, Takuya Wada, Akinori Watanabe, Hisatomo Ikehara, Chika Kusano   +7 more
wiley   +1 more source

Comparison of Transoral Robotic Surgery and Endoscopic Laryngopharyngeal Surgery for Hypopharyngeal and Supraglottic Laryngeal Cancers

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives We aimed to compare intraoperative and postoperative outcomes, technical advantages, and limitations of transoral robotic surgery (TORS) using the Da Vinci Xi robotic system and endoscopic laryngopharyngeal surgery (ELPS) for hypopharyngeal and supraglottic laryngeal cancers.
Tsutomu Ueda, Takayuki Taruya, Yuji Urabe, Minoru Hattori, Nobuyuki Chikuie, Yuki Sato, Takayoshi Hattori, Hiroaki Tahara, Takao Hamamoto, Takashi Ishino, Sachio Takeno   +10 more
wiley   +1 more source

Stochastic inviscid shell models: well-posedness and anomalous dissipation

, 2012
In this paper we study a stochastic version of an inviscid shell model of turbulence with multiplicative noise. The deterministic counterpart of this model is quite general and includes inviscid GOY and Sabra shell models of turbulence.
Barbato, D., Morandin, F.
core   +1 more source

Comprehensive Endoscopic Management of Superficial Pharyngeal Cancer – From Detection and Diagnosis to Treatment and Surveillance

DEN Open, Volume 6, Issue 1, April 2026.
Abstract Traditionally, pharyngeal cancer was detected at an advanced stage, as examinations were usually performed only after symptoms such as pain or dysphagia appeared. Consequently, it was considered a malignancy with a poor prognosis. However, recent advances in image‐enhanced endoscopy (IEE) have facilitated the early detection of superficial ...
Daisuke Kikuchi, Yugo Suzuki, Satoshi Yamashita, Yorinari Ochiai, Shu Hoteya   +4 more
wiley   +1 more source

A Case of Human Epidermal Growth Factor Receptor 2‐Positive Colon Cancer With Invasive Micropapillary Carcinoma Component

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT A female patient in her 60s tested positive for the fecal occult blood test while undergoing health screening. Colonoscopy revealed a 15‐mm‐sized flat elevated lesion with a central depression in the sigmoid colon. Narrow‐band imaging magnification revealed a Japan Narrow‐Band Imaging Expert Team classification of type 2B, whereas crystal ...
Masashi Kono, Yoriaki Komeda, Hiroshi Kashida, Satoru Hagiwara, Akihiro Yoshida, Shunsuke Omoto, Mamoru Takenaka, Naoko Tsuji, George Tribonias, Masatoshi Kudo   +9 more
wiley   +1 more source