18 research outputs found
IN VIVO ASSESSMENT OF IN–STENT NEOATHEROSCLEROSIS AFTER DRUG–ELUTING STENT IMPLANTATION: AN OPTICAL COHERENCE TOMOGRAPHY STUDY
Well-Defined Polystyrene Grafted to Polypropylene Backbone by “Living” Radical Polymerization with TEMPO
Molecular Motion of Peroxy Radicals at Ends of Isolated and Nonisolated Polyethylene Chains Tethered on Powder Surface of Poly(tetrafluoroethylene) in a Vacuum
IN VIVO ASSESSMENT OF IN–STENT NEOATHEROSCLEROSIS AFTER DRUG–ELUTING STENT IMPLANTATION: AN OPTICAL COHERENCE TOMOGRAPHY STUDY
Assessment of Still and Moving Images in the Diagnosis of Gastric Lesions Using Magnifying Narrow-Band Imaging in a Prospective Multicenter Trial
<div><p>Objectives</p><p>Magnifying narrow-band imaging (M-NBI) is more accurate than white-light imaging for diagnosing small gastric cancers. However, it is uncertain whether moving M-NBI images have additional effects in the diagnosis of gastric cancers compared with still images.</p><p>Design</p><p>A prospective multicenter cohort study.</p><p>Methods</p><p>To identify the additional benefits of moving M-NBI images by comparing the diagnostic accuracy of still images only with that of both still and moving images. Still and moving M-NBI images of 40 gastric lesions were obtained by an expert endoscopist prior to this prospective multicenter cohort study. Thirty-four endoscopists from ten different Japanese institutions participated in the prospective multicenter cohort study. Each study participant was first tested using only still M-NBI images (still image test), then tested 1 month later using both still and moving M-NBI images (moving image test). The main outcome was a difference in the diagnostic accuracy of cancerous versus noncancerous lesions between the still image test and the moving image test.</p><p>Results</p><p>Thirty-four endoscopists were analysed. There were no significant difference of cancerous versus noncancerous lesions between still and moving image tests in the diagnostic accuracy (59.9% versus 61.5%), sensitivity (53.4% versus 55.9%), and specificity (67.0% versus 67.6%). And there were no significant difference in the diagnostic accuracy between still and moving image tests of demarcation line (65.4% versus 65.5%), microvascular pattern (56.7% versus 56.9%), and microsurface pattern (48.1% versus 50.9%). Diagnostic accuracy showed no significant difference between the still and moving image tests in the subgroups of endoscopic findings of the lesions.</p><p>Conclusions</p><p>The addition of moving M-NBI images to still M-NBI images does not improve the diagnostic accuracy for gastric lesions. It is reasonable to concentrate on taking sharp still M-NBI images during endoscopic observation and use them for diagnosis.</p><p>Trial registration</p><p>Umin.ac.jp <a href="https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr.cgi?function=brows&action=brows&type=summary&recptno=R000009477&language=E" target="_blank">UMIN-CTR000008048</a></p></div
Characteristics of 40 Gastric Lesions Used in Both Tests.
<p>Characteristics of 40 Gastric Lesions Used in Both Tests.</p
Exposure to oxidative by-products during metamorphosis affects pigmentation patterns in flounder, Paralichthys olivaceus
Cancerous lesion: Within a DL (arrows), irregular MVP and irregular MSP are noted.
<p>Cancerous lesion: Within a DL (arrows), irregular MVP and irregular MSP are noted.</p
Diagnostic Accuracy of Vessels Plus Surface Classification System in Still Image Test versus Moving Image Test by All 34 Endoscopists.
<p>Diagnostic Accuracy of Vessels Plus Surface Classification System in Still Image Test versus Moving Image Test by All 34 Endoscopists.</p