When White Light Is Not Enough
NBI allows ENT specialists to diagnose and treat early laryngeal cancer even more precisely and reliably. NBI is also a very accurate technology for follow-up procedures.
It is clinically proven 1 that by using NBI, doctors are able to detect more suspicious lesions compared to traditional white light (WL), consequently leading to potentially reduced recurrence 4. In addition, NBI is easy to handle due to filter activation at the push of a button. And it’s cost-effective, too: All Olympus Medical imaging systems and videoscopes come with NBI as standard with no additional installations or drugs needed.
How NBI Works
Normal white light (WL) contains all colors. When WL hits the surface of a tissue, all colors are absorbed. Thus the image remains with lack of contrast. With NBI this is different.
NBI uses only blue and green light. When blue and green light hit the surface of the tissue, it is highly absorbed by hemoglobin in the blood vessels. While the blue light is absorbed by the capillaries in the mucosa, the green light reaches deeper to the submucosal area, where it is reflected by the blood vessels.
This is why NBI creates a significantly higher contrast between blood vessels and the surrounding tissue than WL. The NBI images therefore have more contrast than WL images.
For Your Patients Safety
NBI Is Clinically Proven to Diagnose More Laryngeal Cancer
Particularly when combined with a high resolution (e.g. HDTV), NBI can provide a more-detailed and higher-contrasted visualization of blood vessels than other endoscopic procedures.1
An example from daily clinical practice illustrates this: Before a patient’s vocal sound or vocal capabilities deteriorate, NBI can be routinely used to determine early changes in the vocal folds’ vessels, which can also be quantitively and qualitatively classified.
Numerous studies, including a growing number of randomized controlled trials (RCT) and metaanalyses, highlight the clinical value of NBI, especially with regard to the detection of cancer and through examination of suspicious mucosal areas. With high image quality and contrast in full HD or ultra high definition (4K), NBI can better display the edge of surgical margin and thus may reduce the number of biopsies.
The Experts View
How NBI Can Help in ENT Diagnosis – An Example
Watch procedure videos comparing Narrow Band Imaging to white-light-endoscopy.
Recurrent papilloma with intraepithelial papillary vascular loops in the anterior commissure with mild synechia.
(left: white light image, right: NBI image)
How NBI Reduces Overall Costs
In the following calculation, the Olympus video endoscopy system with NBI (“NBI”) will be compared to a conventional white-light endoscopy system without NBI (“White Light”).
Total Costs per Year | Example: 50 patients*
NBI offers superior efficacy in the early diagnosis of laryngeal cancer in pre-, intra- and postoperative stages compared to WL endoscopy. As tumors can be detected at an early stage using NBI, potential complications and the time a patient needs to spend in hospital for treatment, follow-up and treatment due to tumor recurrence is potentially less. 4 NBI comes with Olympus Medical equipment at no additional cost for extra equipment, disposables or drugs.
Disclaimer: Costs and savings figures used in the model are for illustrative purposes only and the user’s attention is drawn to the fact that outputs from the model are subject to a) the assumptions described within the model and b) the data that the user selects or decides to input into the model.
* Plaat et al.: Narrow-band imaging in transoral laser surgery for early glottic cancer in relation to clinical outcome. Head Neck. 2017 Jul; 39(7): 1343-1348. doi: 10.1002/hed.24773. Epub 2017 Mar 29.
NBI provides better definition of tumor diagnosing and staging and surgical margins in pre- and intraoperative settings. NBI is also valuable in postoperative settings due to its capacity for early detection of persistence and recurrence of early laryngeal cancer as well as metachronous tumors.
NBI can be used in doctors’ offices, outpatient clinics and ORs. By combining NBI technology with flexible scopes as well as with rigid scopes, doctors can benefit from this technology during the complete patient pathway, from diagnosis to treatment and follow-up. Also, using the same technology in all procedures makes it easier to compare relevant clinical data.
Key Outcomes of Using NBI
NBI allows the more precise and reliable diagnosis and treatment of early laryngeal cancer. It is clinically proven that by using NBI, doctors are able to detect more suspicious lesions compared with traditional WL endoscopy. NBI is also easy to handle and cost-effective: All Olympus Medical imaging systems and videoscopes come with NBI as standard with no additional installations or drugs needed. All this makes using NBI a safe and reliable way to improve clinical outcomes in patients with suspected cancer in the upper aerodigestive tract. 1,2,3,4,5
- 1.Detects 18% more true-positive laryngeal cancer lesions
- 2.Increases sensitivity by 23% in the identification of laryngeal cancer while maintaining high specificity (96%)
- 3.Reduces 85% of superficial positive margins
- 4.NBI comes with Olympus Medical equipment at no additional costs for extra equipment, disposables or drugs. It is a key function of Olympus endoscopy system, and has shown to provide clinical quality, efficiency gain and cost saving in other indications.
- 5.NBI comes with Olympus Medical equipment at no additional costs for extra equipment, disposables or drugs. It is a key function of Olympus endoscopy system, and has shown to provide clinical quality, efficiency gain and cost saving in other indications.