dilation


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Related to dilation: Cervical dilation

dilation

[də′lā·shən]
(mathematics)
A transformation which changes the size, and only the size, of a geometric figure.
An operation that provides a relatively flexible boundary to a fuzzy set; for a fuzzy set A with membership function mA, a dilation of A is a fuzzy set whose membership function has the value [mA (x)]βfor every element x, where β is a fixed number that is greater than 0 and less than 1.
(science and technology)
The act or process of stretching or expanding.
References in periodicals archive ?
After dilation, the balloon catheter was removed, pressure and oxygen saturation measurements were repeated, and a postdilation right ventriculogram or pulmonary artery angiogram using a pigtail catheter was performed in most patients.
Key Words: Achalasia, Pneumatic dilation, Pneumatic achalasia balloon
The global sinus dilation devices market report provides market size (Revenue USD Million 2014 to 2021), market share, trends and forecasts growth trends (CAGR%, 2017 to 2021).
Endoscopic balloon dilation (EBD) has been widely employed in cases with stenotic lesions of the gastrointestinal tract, regardless of whether such lesions are benign or malignant.
The participants who were recorded with low dilation when viewing a sad face were also at risk, whereas a high pupillary reaction to these images was "protective," Professor Gibb highlighted.
The company said the Elation Pulmonary Dilation Balloon is used to endoscopically dilate strictures of the trachea or bronchi.
Balloon dilation of the natural sphenoid sinus ostium offers the sinus surgeon another method to safely and effectively treat inflammatory sphenoid sinus disease.
Cardiac expert Dr Ajay Kanojia, assisted by Dr Sitaram Radhakrishnan, successfully conducted the non-surgical balloon dilation procedure on the 19-year-old patient's heart to remove an unnatural overgrowth of tissue - the subaortic membrane - that was obstructing blood flow into his heart, causing immense pain and discomfort for several years.
We should no longer apply the standards of active-phase progress --standards that have traditionally driven our diagnoses of labor dystocia --until the patient has achieved 6 cm of dilation.
AIM: To analyse the feasibility and also the morbidity in singlestep acute dilation, named "One-shot" technique and also to compare it with Amplatz sequential fascial dilatation technique regarding creation of tract in performing percutaneous nephrolithotomy.
Repeat pneumatic dilation was performed and a promotility agent was started.
They were randomized to dilation or no dilation at initial endoscopy.