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A Storz endoscopy unit used for laryngoscopy exams of the vocal folds and the glottis. Basil Hirschowitz, Larry Curtiss, and Wilbur Peters invented the first fiber optic endoscope in 1957. [18] Earlier in the 1950s Harold Hopkins had designed a "fibroscope" consisting of a bundle of flexible glass fibres able to coherently transmit an image ...
Following upper endoscopy, the balloon is inserted into the esophagus and the balloon is distended with a fluid with known properties (e.g. conductivity and volume). [1] Each electrode then measures impedance, and a single pressure sensor at the end of the device measures pressure within the balloon. [1]
In gastroenterology, esophageal pH monitoring is the current gold standard for diagnosis of gastroesophageal reflux disease (GERD). It provides direct physiologic measurement of acid in the esophagus and is the most objective method to document reflux disease, assess the severity of the disease and monitor the response of the disease to medical or surgical treatment.
Confocal endoscopy, or confocal laser endomicroscopy (CLE), is a modern imaging technique that allows the examination of real-time microscopic and histological features inside the body. In the word "endomicroscopy", endo- means "within" and -skopein means "to view or observe".
Endoscopy may be used to investigate symptoms in the digestive system including nausea, vomiting, abdominal pain, difficulty swallowing, and gastrointestinal bleeding. [6] It is also used in diagnosis, most commonly by performing a biopsy to check for conditions such as anemia , bleeding, inflammation , and cancers of the digestive system . [ 6 ]
In gastrointestinal endoscopy, narrow-band imaging has found use in the identification of Barrett's esophagus, [3] in the identification of pit patterns to classify colorectal polyps and tumours, [4] and in the identification of atypical dysplastic cells in the colon of patients with ulcerative colitis. [5]
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A control chart is a more specific kind of run chart. The control chart is one of the seven basic tools of quality control, which also include the histogram, pareto chart, check sheet, cause and effect diagram, flowchart and scatter diagram. Control charts prevent unnecessary process adjustments, provide information about process capability ...