To investigate the value of colonoscopy with narrow band imaging (NBI) in predicting the histology of colorectal polypoid lesions.
探讨窄带成像(NBI)结肠镜对结肠息肉样病变的病理组织类型的预测能力。
Objective:To study the value of the endoscopic narrow band imaging technique in distinguish the early esophageal cancer and premalignant lesions .
目的：研究内镜窄带成像技术在早期食管癌及其癌前病变的运用价值。
Conclusion: a short, didactic teaching session can achieve high accuracy and good interobserver agreement in the use of narrow-band imaging for determining the histology of colorectal polyps.
结论：短期的说教式教学可以提高应用窄带影像结肠镜判断结直肠息肉病理类型的准确率及有利与观察者之间意见统一。
On account of the wide relative bandwidth, compared with the narrow-band system, large-band SAR system errors impose more severe effect on imaging quality.
由于相对带宽很大，与窄带系统相比，宽带SAR系统误差对成像的影响更严重。
To assess the value of narrow-band imaging (NBI) in diagnosis of early cancer and premalignant lesions in esophagus.
探讨内镜窄带成像技术(NBI)在食管癌及癌前病变诊断中的价值。
A staring imaging laser detecting and warning system is formed by using 4-channel uncooled infrared focal plane detectors, large field optical system, narrow band filters and signal processing system.
利用四路红外非制冷焦平面探测器、大视场光学系统、窄带滤光片和信号处理系统，构成了凝视成像激光探测与告警系统。
A staring imaging laser detecting and warning system is formed by using 4-channel uncooled infrared focal plane detectors, large field optical system, narrow band filters and signal processing system.
利用四路红外非制冷焦平面探测器、大视场光学系统、窄带滤光片和信号处理系统，构成了凝视成像激光探测与告警系统。
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