Light Switching Microprojector Allows Endoscopic In Vivo 3D Imaging of Gastrointestinal Abnormalities

Visible spatial frequency domain imaging with a digital light microprojector.

There is a need for cost effective, quantitative tissue spectroscopy and imaging systems in clinical diagnostics and pre-clinical biomedical research. A platform that utilizes a commercially available light-emitting diode (LED) based projector, cameras, and scaled Monte Carlo model for calculating tissue optical properties is presented. These components are put together to perform spatial frequ...

Gastrointestinal imaging: endoscopic ultrasound.

The development of endoscopic ultrasound (EUS) since its introduction in the early 1980s has added greatly to the quality of imaging of the gastrointestinal tract. EUS is probably the investigation of choice for local staging of several gastrointestinal tumors and evaluation of submucosal masses. In addition to well-established indications, newer applications of EUS are emerging. For example, E...

Progress in endoscopic imaging of gastrointestinal tumors.

STATE OF THE ART New technologies in the form of high-magnification or "zoom" endoscopy complemented by chromoscopic agents or Narrow Band Imaging permit early detection of neoplastic lesions, particularly flat and depressed types. Detailed characteristics of the mucosal surface can be obtained, enabling an in vivo "optical biopsy" to make an instant diagnosis at endoscopy, previously possible ...

Endoscopic Molecular Imaging in Gastrointestinal Oncology

Gastrointestinal (GI) endoscopy has been widely used for detection, differentiation and staging for neoplasia in the digestive tract, and has made great progress during the last decade (Sivak, 2006). Diagnostic accuracy can be enhanced by better training, more efficient techniques, and the development of new image-processing technologies (Cotton et al., 2006; Tajiri, 2007); however, diagnosis u...

Application of 3D Ultrasonography in Detection of Uterine Abnormalities