scholarly journals White-Light Imaging in a Two Gratings Diffraction Process

2008 ◽  
Vol 37 (2) ◽  
pp. 56-62
Author(s):  
José J. Lunazzi ◽  
Noemí I. R. Rivera
Keyword(s):  
White Light ◽  
White Light Imaging

scholarly journals Evaluating Laryngopharyngeal Tumor Extension Using Narrow Band Imaging Versus Conventional White Light Imaging

2021 ◽  
Author(s):  
Manon A. Zwakenberg ◽  
Gyorgy B. Halmos ◽  
Jan Wedman ◽  
Bernard F. A. M. Laan ◽  
Boudewijn E. C. Plaat
Keyword(s):  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Tumor Extension ◽  
White Light Imaging

Prospective White-light Imaging and In Situ Measurements of Quiescent Large-scale Solar-wind Streams from the Parker Solar Probe and Solar Orbiter

2018 ◽  
Vol 868 (2) ◽  
pp. 137 ◽  
Author(s):  
Ming Xiong ◽  
Jackie A. Davies ◽  
Xueshang Feng ◽  
Bo Li ◽  
Liping Yang ◽  
...  
Keyword(s):  
Solar Wind ◽  
White Light ◽  
Large Scale ◽  
In Situ Measurements ◽  
White Light Imaging

scholarly journals Effects of Thomson-Scattering Geometry on White-Light Imaging of an Interplanetary Shock: Synthetic Observations from Forward Magnetohydrodynamic Modelling

Solar Physics ◽  
2012 ◽  
Vol 285 (1-2) ◽  
pp. 369-389 ◽  
Author(s):  
Ming Xiong ◽  
J. A. Davies ◽  
M. M. Bisi ◽  
M. J. Owens ◽  
R. A. Fallows ◽  
...  
Keyword(s):  
White Light ◽  
Interplanetary Shock ◽  
Thomson Scattering ◽  
Scattering Geometry ◽  
White Light Imaging

S1599: Comparison of Autofluorescence Imaging, White Light Imaging and Histological Findings in the Evaluation of Ulcerative Colitis

2010 ◽  
Vol 71 (5) ◽  
pp. AB204
Author(s):  
Taro Osada ◽  
Atsushi Arakawa ◽  
Hiroya Ueyama ◽  
Naoto Sakamoto ◽  
Tomoyoshi Shibuya ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
White Light ◽  
Autofluorescence Imaging ◽  
Histological Findings ◽  
White Light Imaging

scholarly journals P236 Evaluation of histological inflammation by a novel image enhanced endoscopy technique, dual red imaging, in patients with ulcerative colitis: Preliminary study

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S261-S261
Author(s):  
K FUJIMOTO ◽  
K Watanabe ◽  
K Hori ◽  
K Kaku ◽  
N Kinoshita ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Topical Steroid ◽  
Treatment Goal ◽  
Practical Approach ◽  
Mayo Score ◽  
White Light Imaging ◽  
Pathological Assessment

Abstract Background Endoscopic remission is the ideal treatment goal for patients with ulcerative colitis (UC) in clinical practice. However, several recent investigations tried to evaluate histological healing as a more optimal treatment goal. The assessment of histological healing, however, is usually inconvenient and time-consuming because of the requirement of a biopsy and pathological assessment. Dual red imaging (DRI; Olympus Corporation, Japan) is a novel image enhanced endoscopy technique that can visualise the inflammation, including that in the surface crypt, and vessel findings of the brownish surface or green-coloured deeper layer of the mucosa in contrast to narrow band imaging. We preliminarily evaluated the utility of DRI in the assessment of histological healing in UC as a practical approach. Methods We enrolled UC patients who provided consent from May 2018 to September 2019 in our hospital, and performed colonoscopy in the entire colon with white-light imaging and DRI, and then endoscopic pictures and biopsy samples were obtained. Central pathological assessment of histological inflammation based on the Nancy index with individual items was performed for each biopsy sample. We also assessed the clinical background, UC activity according to the Mayo score, white-light endoscopic activity according to the Mayo endoscopic subscore (MES), and DRI findings using a 5-point scale. Results We evaluated a total of 90 sets of DRI and pathological findings from 47 UC patients (20 females; median age, 42 [20–84] years; 25 with pancolitis, 17 left-sided colitis, 3 proctitis, and 2 others; median duration of disease, 83 [1–379] months; median Mayo score, 2 [0–11]). Participants were treated with 5-aminosalicylates (38 oral; 7 topical), steroid (4 systemic; 6 topical), immunomodulator (7), anti-TNF agents (5), tofacitinib (3), and tacrolimus (8). Both the MES (r = 0.70) and DRI scale (r = 0.65) correlated well with the Nancy index. Among individual pathological items with respect to inflammation, ulceration (r = 0.69), chronic inflammatory infiltrate (r = 0.66), neutrophils in the lamina propria (r = 0.65), and serrated architectural abnormalities (r = 0.60) correlated well with the Nancy index in contrast to other pathological items. DRI seemed to facilitate the visualisation of histological inflammation in deeper layers of the mucosa compared with white-light imaging or narrow-band imaging. Conclusion The novel DRI technique has potential in the evaluation of histological inflammation without the requirement of a biopsy in patients with UC as a practical approach. A further prospective multicenter study in this regard is needed.

Narrow band imaging in the diagnosis of bladder schistosomiasis

2020 ◽  
Vol 13 (4) ◽  
pp. e233929
Author(s):  
Joachim Jimie ◽  
Margaret Lyttle
Keyword(s):  
White Light ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Urinary Schistosomiasis ◽  
Detailed Evaluation ◽  
Characteristic Features ◽  
First Time ◽  
Urine Microscopy ◽  
White Light Imaging ◽  
Multiple Episodes

A 23-year-old man presented to us with multiple episodes of visible haematuria associated with dysuria, but no other symptoms suggestive of infection. His physical examination was completely unremarkable. On detailed evaluation of history, it was noted that he was treated for urinary schistosomiasis as a child in Sudan. A diagnostic flexible cystoscopy, with both white light and narrow band imaging (NBI), was done among other tests as a further diagnostic tool to investigate possible causes. This revealed the characteristic features of bladder schistosomiasis. Urine microscopy for Schistosoma haematobium eggs was negative, and this could have caused the diagnosis to be missed. He was treated with praziquantel for chronic bladder schistosomiasis. This is the first time that the use of NBI as an adjunct to white light imaging in the diagnosis of bladder schistosomiasis has been reported.

scholarly journals Blue Laser Imaging-Bright Improves Endoscopic Recognition of Superficial Esophageal Squamous Cell Carcinoma

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Akira Tomie ◽  
Osamu Dohi ◽  
Nobuaki Yagi ◽  
Hiroaki Kitae ◽  
Atsushi Majima ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
White Light ◽  
Objective Evaluation ◽  
Blue Laser ◽  
Laser Imaging ◽  
Blue Laser Imaging ◽  
The Mean ◽  
White Light Imaging

Background/Aims. The aim of this study was to evaluate the endoscopic recognition of esophageal squamous cell carcinoma (ESCC) using four different methods (Olympus white light imaging (O-WLI), Fujifilm white light imaging (F-WLI), narrow band imaging (NBI), and blue laser imaging- (BLI-) bright).Methods.We retrospectively analyzed 25 superficial ESCCs that had been examined using the four different methods. Subjective evaluation was provided by three endoscopists as a ranking score (RS) of each image based on the ease of detection of the cancerous area. For the objective evaluation we calculated the color difference scores (CDS) between the cancerous and noncancerous areas with each of the four methods.Results. There was no difference between the mean RS of O-WLI and F-WLI. The mean RS of NBI was significantly higher than that of O-WLI and that of BLI-bright was significantly higher than that of F-WLI. Moreover, the mean RS of BLI-bright was significantly higher than that of NBI. Furthermore, in the objective evaluation, the mean CDS of BLI-bright was significantly higher than that of O-WLI, F-WLI, and NBI.Conclusion. The recognition of superficial ESCC using BLI-bright was more efficacious than the other methods tested both subjectively and objectively.

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