What is narrow band imaging in endoscopy?

Narrow band imaging (NBI) endoscopy is an optical image enhancing technology that allows a detailed inspection of vascular and mucosal patterns, providing the ability to predict histology during real-time endoscopy.

What is NBI in endoscopy?

NBI utilizes red-green-and-blue filters to modify WL endoscopy (WLE): the blue light filter (400–430 nm) highlights the capillaries in the superficial mucosa through mean peak absorption of hemoglobin (415 nm), while the green light filter (525–555 nm) penetrates deeper into the mucosa [1].

What is NBI in colonoscopy?

Abstract. Colonoscopic detection and removal of polyps represent the most important prevention method for colorectal cancer. We aimed to investigate the diagnostic yield of narrow band imaging (NBI) colonoscopy for polyp detection compared with standard colonoscopy.

What are the advantages of NBI?

This offers a huge benefit: NBI achieves a maximum contrast of vessels and the surrounding mucosa. The shorter NBI light wavelength only penetrates the superficial layers of the mucosa and is absorbed by capillary vessels on the surface. This facilitates the detection of tumors, as they are often highly vascularized.

What is the focus of NBI?

NBI is an optical imaging technology that enhances the visibility of vessels and other tissue on the mucosal surface. NBI works by filtering the white light into specific light wavelengths that are absorbed by hemoglobin and penetrate only the surface of human tissue.

What does NBI stand for in medical terms?

Narrow band imaging (NBI) is a new, alternative light-wavelength capture system that takes advantage of altered blood vessel morphology.

What is contact endoscopy?

Contact endoscopy is a promising method of in vivo microscopic examination whereby a rigid telescope is placed on a previously dye-stained mucosa allowing evaluation of the superficial cell layers of the epithelium.

What is white light endoscopy?

Narrow Band Imaging (NBI) is a novel endoscopic imaging technique that has recently come to the forefront[2]. It relies on altering the normal red, green and blue optical filters in the light source of the video endoscopy system that are used to make up sequential coloured frames of an endoscopic image.

What is confocal laser endomicroscopy?

Confocal laser endomicroscopy (CLE) is an endoscopic modality that was developed to obtain very high magnification of the mucosal layer of the gastrointestinal (GI) tract [1], and it has the potential to enable histological diagnosis in real time [2].

What is pit pattern?

Pit Pattern The opening to each crypt in the epithelium is known as a pit. Pits can be observed with optical manipulation (eg, narrow-band imaging) or when the surface of the colon is stained with dye (eg, indigo carmine).

What is jnet classification?

The JNET classification uses magnifying NBI observations with a focus on vessel and surface patterns to diagnose colorectal tumors as Types 1, 2A, 2B, and 3. Type 1 is characterized by an invisible vessel pattern and a surface pattern comprising dark and white spots, similar to the surrounding normal mucosa.

Is NBI part of PNP?

The National Bureau of Investigation (Filipino: Pambansang Kawanihan ng Pagsisiyasat, abbreviated as NBI) is an agency of the Philippine government under the Department of Justice, responsible for handling and solving major high-profile cases that are in the interest of the nation.

What do you think is the difference as to the job of the PNP and NBI?

So far, the NBI casts a wider net compared to the PNP. The NBI has a national database which can be accessed by NBI personnel preparing the clearance of applicants. The PNP, meanwhile, still keeps local databases. This means that each town and city has its own separate database.

What are the 7 services of NBI?

The present organizational structure of the NBI shall be reorganized into the Office of the Director, Office of the Deputy Director, Office of the Assistant Directors for Investigation Service, Intelligence Service, Comptroller Service, Administrative Service, Forensic Service, and Legal Service.