Clinical Gastroenterology Vol.24 No.1(5)

Theme Consensus Terminology in Endoscopic Imaging -- Focusing on Image-enhanced Endoscopy
Title Tomographic Imaging New Procedures
Publish Date 2009/01
Author Ryoji Miyahara Department of Endoscopy, Nagoya University Hospital
Author Hidemi Goto Department of Endoscopy, Nagoya University Hospital / Department of Gastroenterology, Nagoya University Graduate School of Medicine
Author Shusuke Kitabatake Department of Gastroenterology, Toyohashi Municipal Hospital
[ Summary ] EUS elastography and optical coherence tomography are newly developed imaging procedures. It is well known that there is a correlation between the degree of malignancy and the hardness of tissues. It has been reported that malignant tumors are harder than benign tumors. In superficial regions, real-time tissue elastography (referred to as EG) has been reported to be effective as a method to objectively determine the degree of elasticity by using ultrasonic pulses. This method may be clinically applied to diagnose diseases in mammary, thyroid or prostate tissue. EG is a technique which may be employed to visualize the differences in compression of tissues. This technique may be used to enhance diagnosis of benign versus malignant tumors through real-time visualization of the elasticity of tissues.
Optical coherence tomography (OCT) employs infrared light reflectance to provide in vivo tissue images with resolutions far superior to those obtained through endoscopic ultrasound methods, nearly at the level of histology.
Newly developed methodologies, based on these new procedures, should offer useful information and have significant impact on clinical procedures.
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