TJ95 2003010300战术高能激光武器的发展现状和未来=Present status andfuture of the tactical laser weapons[刊,中]/任国光(北京应用物理与计算数学研究所.北京(100088)),黄裕年//激光与红外.-2002,32(4).-211-217介绍和分析了战术...TJ95 2003010300战术高能激光武器的发展现状和未来=Present status andfuture of the tactical laser weapons[刊,中]/任国光(北京应用物理与计算数学研究所.北京(100088)),黄裕年//激光与红外.-2002,32(4).-211-217介绍和分析了战术高能激光系统的拦截试验和存在的问题,以及机动战术高能激光系统及其第一代/第二代激光器,特别评述了固体热容量激光器和高功率激光二极管阵列所取得的重大进展。最后讨论了机载战术激光武器的特点和面临的主要挑战。图8表1参17(杨妹清)展开更多
AIM To determine specific volumetric laser endomicroscopy(VLE) imaging features associated with neoplasia at the gastroesophageal junction(GEJ) and gastric cardia.METHODS During esophagogastroduodenoscopy for patients...AIM To determine specific volumetric laser endomicroscopy(VLE) imaging features associated with neoplasia at the gastroesophageal junction(GEJ) and gastric cardia.METHODS During esophagogastroduodenoscopy for patients with known or suspected Barrett's esophagus,VLE was performed before biopsies were taken at endoscopists' discretion.The gastric cardia was examined on VLE scan from the GEJ(marked by top of gastric folds) to 1 cm distal from the GEJ.The NineP oints VLE console was used to analyze scan segments for characteristics previously found to correlate with normal or abnormal mucosa.Glands were counted individually.Imaging features identified on VLE scan were correlated with biopsy results from the GEJ and cardia region.RESULTS This study included 34 cases.Features characteristic of the gastric cardia(gastric rugae,gastric pit architecture,poor penetration) were observed in all(100%) scans.Loss of classic gastric pit architecture was common and there was no difference between those with neoplasia and without(100% vs 74%,P = NS).The abnormal VLE feature of irregular surface was more often seen in patients with neoplasia than those without(100% vs 18%,P < 0.0001),as was heterogeneous scattering(86% vs 41%,P < 0.005) and presence of anomalous glands(100% vs 59%,P < 0.05).The number of anomalous glands did not differ between individual histologic subgroups(ANOVA,P = NS).CONCLUSION The transition from esophagus to gastric cardia is reliably identified on VLE.Histologically abnormal cardia mucosa produces abnormal VLE features.Optical coherence tomography algorithms can be expanded for use at the GEJ/cardia.展开更多
文摘TJ95 2003010300战术高能激光武器的发展现状和未来=Present status andfuture of the tactical laser weapons[刊,中]/任国光(北京应用物理与计算数学研究所.北京(100088)),黄裕年//激光与红外.-2002,32(4).-211-217介绍和分析了战术高能激光系统的拦截试验和存在的问题,以及机动战术高能激光系统及其第一代/第二代激光器,特别评述了固体热容量激光器和高功率激光二极管阵列所取得的重大进展。最后讨论了机载战术激光武器的特点和面临的主要挑战。图8表1参17(杨妹清)
文摘AIM To determine specific volumetric laser endomicroscopy(VLE) imaging features associated with neoplasia at the gastroesophageal junction(GEJ) and gastric cardia.METHODS During esophagogastroduodenoscopy for patients with known or suspected Barrett's esophagus,VLE was performed before biopsies were taken at endoscopists' discretion.The gastric cardia was examined on VLE scan from the GEJ(marked by top of gastric folds) to 1 cm distal from the GEJ.The NineP oints VLE console was used to analyze scan segments for characteristics previously found to correlate with normal or abnormal mucosa.Glands were counted individually.Imaging features identified on VLE scan were correlated with biopsy results from the GEJ and cardia region.RESULTS This study included 34 cases.Features characteristic of the gastric cardia(gastric rugae,gastric pit architecture,poor penetration) were observed in all(100%) scans.Loss of classic gastric pit architecture was common and there was no difference between those with neoplasia and without(100% vs 74%,P = NS).The abnormal VLE feature of irregular surface was more often seen in patients with neoplasia than those without(100% vs 18%,P < 0.0001),as was heterogeneous scattering(86% vs 41%,P < 0.005) and presence of anomalous glands(100% vs 59%,P < 0.05).The number of anomalous glands did not differ between individual histologic subgroups(ANOVA,P = NS).CONCLUSION The transition from esophagus to gastric cardia is reliably identified on VLE.Histologically abnormal cardia mucosa produces abnormal VLE features.Optical coherence tomography algorithms can be expanded for use at the GEJ/cardia.
