近年來隨著早期診治的需求，消化道內視鏡的影像技術也持續發展。影像強化內視 鏡(image-enhanced endoscopy) 包括色素內視鏡(chromoendoscopy)、高解像力內視鏡(highdefinition endoscopy)、擴大內視鏡(magnifying endoscopy)、窄頻影像(narrow band imaging) 等，皆已廣泛應用於臨床診斷。其他發展中的技術，如自體螢光影像(autofluorescence imaging)、光譜(spectroscopy)、共軛焦雷射顯微內視鏡(confocal laser endomicroscopy)、 光學同調斷層掃描(optical coherence tomography)、細胞內視鏡(endocytoscopy)、分子影像 (molecular imaging) 等，則尚未實際應用。未來可能整合數種影像技術為「一體成形」的內視 鏡，同一次檢查做完整的診斷。分子影像的發展，也將邁向個人化醫療的新境界。內視鏡影 像診斷的持續發展，將使消化道疾病的診療更臻於完善，造福廣大民眾。

The imaging technologies of gastrointestinal endoscopy have gained rapid advancement in recent years as the need of early diagnosis. Image-enhanced endoscopy, including chromoendoscopy, high-definition endoscopy, magnifying endoscopy, and narrow band imaging, are now applied in daily practice. The other emerging technologies, such as autofluorescence imaging, spectroscopy, confocal laser endomicroscopy, optical coherence tomography, endocytoscopy, and molecular imaging, are still under research setting. In the future, an “all-in-one” endoscope integrated several technologies will be developed to accomplish complete diagnosis in one procedure. The advance in molecular imaging will move forward the personalized medicine. The continued development of imaging technology in endoscopy will attain perfection in the diagnosis of gastrointestinal diseases. (J Intern Med Taiwan 2015; 26: 133-142)