Learn about narrow band esophagogastroduodenal endoscopy (NBI)

This is an automatically translated article.

The article was professionally consulted with Master, Doctor Vu Van Quan - Gastroenterologist - Department of General Surgery & Anesthesia - Vinmec Hai Phong International General Hospital.

Along with the development of modern medicine, endoscopic techniques of esophagus, stomach, duodenum with narrow band of light (NBI) have created a breakthrough in screening and diagnosis of gastrointestinal cancer. early and very early stages.

1. What is NBI Narrow Band Endoscopy?

Narrow Banding Imaging (NBI) gastroduodenoscopy is a technique that uses R/G/B filter and monochromatic light, based on the principle of using an analyzer light treatment with two wavelengths 415 nm (415 ± 30 nm) and 540 nm (540 ± 30 nm) and filter system.
This technique provides images with the ability to better distinguish some specific features and characteristics between pathological and normal tissues, different levels of mucosa and increased contrast on the surface of the skin. epithelial surface of the submucosal capillary network to provide more accurate diagnostic images in the diagnosis of esophageal, gastric and duodenal pathology in patients with suspected gastrointestinal cancer.
Through NBI narrow band endoscopic technique, doctors will easily detect abnormalities occurring in the stomach, ulcers, dysplasia, metaplasia, and early cancer. When performing an esophagoscopy, it is possible to detect Barrett's esophagus due to reflux, the cause of esophageal cancer.
When conducting colonoscopy, NBI helps to detect polyps and distinguish malignant, benign polyps or ulcerative lesions suspected of cancer, thereby helping to provide timely treatment and improve the quality of life and life expectancy of patients.
NBI narrow band endoscopic technique is considered to be the best method to help screen for early gastrointestinal cancer today.


Kỹ thuật nội soi dải tần ánh sáng hẹp NBI được đánh giá là phương pháp tốt nhất để giúp tầm soát ung thư thực quản, dạ dày, tá tràng sớm nhất hiện nay
Kỹ thuật nội soi dải tần ánh sáng hẹp NBI được đánh giá là phương pháp tốt nhất để giúp tầm soát ung thư thực quản, dạ dày, tá tràng sớm nhất hiện nay

2. Subjects performed narrow band endoscopic (NBI) technique

NBI narrow band endoscopic technique is indicated for the following subjects:
Patients with suspected gastric disease without contraindications; People with anemia of unknown cause; Screening endoscopy: Cancer, Barett's esophagus, polyposis syndrome...; Interventional endoscopy: Removal of gastrointestinal foreign bodies, gastrointestinal bleeding, polypectomy, mucosal resection for early cancer treatment...; NBI narrowband endoscopy is contraindicated in the following cases:
The patient is in respiratory failure; Patients with severe heart failure; Patients with mental disorders do not cooperate; Suspected acute coronary syndrome; Suspected aneurysm, aortic dissection; Uncontrolled hypertension; Suspected perforation of hollow viscera; Relative contraindications for hypotension and systolic blood pressure <90 mmHg.

3. Advantages and disadvantages of NBI . narrowband endoscopic technique

3.1 Advantages Unlike conventional endoscopic techniques that use natural light, narrow band endoscopic technique with NBI (Narrow Band Imaging) endoscope system combines 2 modes:
Narrow Band Imaging (NBI: Narrow Band Imaging) mode that uses only light with 415 nm and 540 nm wavelengths allows NBI endoscopes to focus on more detailed, more thorough analysis and for better results than endoscopy. High resolution endoscopy for changes in the superficial capillary system nourishing the mucosa and in the mucosal surface layer of the gastrointestinal tract. The results of NBI endoscopy are therefore better than conventional high-resolution endoscopy; Conventional high-resolution endoscopic mode uses natural light with wavelengths ranging from 400-700 nm. Because of these outstanding advantages, the NBI endoscopic technique has been applied to diagnose esophageal - stomach - colorectal cancer at early and very early stages. At this stage, the patient only needs to conduct flexible endoscopy, combined with surgical intervention to remove the damaged digestive tract mucosa, which can completely cure the disease.
NBI endoscopic technique brings good treatment effect, patient's survival time is longer after treatment with better quality of life. Gastrointestinal cancer patients absolutely do not need to be combined with other methods such as radiation therapy, chemotherapy...

4. Narrow band endoscopic (NBI) procedure

The NBI procedure is performed as follows: Step 1: Check the medical records;
Step 2: Examine the patient and explain the technique, its advantages and possible complications;
Step 3: Perform the endoscopic process:
Install a monitor to monitor the patient as directed by the endoscopist; Conduct endoscopy according to standard procedure to observe the esophagus, gastric mucosa, duodenum and duodenum, so that NBI mode closely observes suspected lesions; The endoscopist ordered to take pictures to illustrate the lesion and ordered H.pylori test or biopsy if necessary; Monitor the patient's condition during the entire procedure; Type and print the results after finishing;

5. Endoscopy of the esophagus - stomach - duodenum is good?


Bệnh viện Đa khoa Quốc tế Vinmec Hải Phòng đã đưa vào ứng dụng phương pháp nội soi thực quản - dạ dày - tá tràng dải tần hẹp NBI trong tầm soát ung thư đường tiêu hóa
Bệnh viện Đa khoa Quốc tế Vinmec Hải Phòng đã đưa vào ứng dụng phương pháp nội soi thực quản - dạ dày - tá tràng dải tần hẹp NBI trong tầm soát ung thư đường tiêu hóa

Currently, Vinmec Hai Phong International General Hospital has applied NBI narrow band esophagogastroduodenal endoscopy method in screening for gastrointestinal cancer.
Vinmec Hai Phong is equipped with the most modern flexible endoscopic systems of Olympus - Japan. Narrow Banding Imaging (NBI) endoscopic technique has created a great buzz, is a breakthrough for screening and diagnosis of esophageal, gastric, duodenal and colon cancer. , the rectum in the early and very early stages. With high-contrast and high-resolution endoscopic images, doctors can easily detect small changes in the color, morphology of cancerous and precancerous lesions in patients through which endoscopy can be performed. often difficult to detect to promptly give appropriate treatment regimen, prevent complications.
Not only standard treatment techniques, safety and quality with modern diagnostic endoscopy system, including NBI narrow-band endoscopy system, at Vinmec Hai Phong technical It is performed by a team of qualified and experienced specialists including Doctor Vu Huy Binh. Patients will enjoy professional service quality and the best quality of diagnosis and treatment today.
Patients who have surgery at the Department of Surgery, Vinmec Hai Phong Hospital enjoy outstanding benefits including:
Short hospital stay, minimizing the cost of stay, reducing the risk of hospital infections. With cases of lithotripsy, inguinal hernia, customers can always go to work after 1 day of discharge from the hospital. Limit the use of antibiotics, reduce the risk of side effects, save costs, patients do not have to worry, fear when administering antibiotics and follow up after taking the drug. Recovery rate reached 90%, re-hospitalization 0%, postoperative infection 0%. The Early Post-Surgery Care Program provides comprehensive care to patients before, during and after surgery, helping to reduce hospital stay, improve treatment quality and reduce costs; reduce the rate of complications. ERAS has been shown to shorten the average length of stay from 8-10 days to 3-4 days. Insurance: Vinmec signed with many large private insurance partners. When customers are hospitalized, they are guaranteed and compensated at the hospital. Save a lot of customer's time and effort. Other advantages : Modern equipment; Service quality according to international standards; Highly qualified doctor; Patients do not need relatives to take care of them because they are cared for by a dedicated and attentive nursing doctor... To register for examination and treatment, you can contact us at the following address:
National General Hospital Vinmec Hai Phong - Vo Nguyen Giap, Le Chan District, Hai Phong City.
Hotline: 0225 7309 888
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