ablation


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Related to ablation: Radiofrequency ablation, Catheter ablation, Endometrial ablation, Cardiac ablation

ablation

1. Medicine the surgical removal of an organ, structure, or part
2. Astronautics the melting or wearing away of an expendable part, such as the heat shield of a space re-entry vehicle on passing through the earth's atmosphere
3. Geology the wearing away of a rock or glacier

ablation

(ab-lay -shŏn) The loss of material from the surface of a moving body as a result of vaporization, friction, etc. For example, atmospheric atoms and molecules erode the surface of a meteoroid and damage the protective heat shield of a returning space shuttle.

Ablation

 

in glaciology, the wasting of the mass of a glacier or snow cover as a result of thawing, evaporation, or mechanical removal—for example, wind ablation or the falling of icebergs. It is caused chiefly by climatic factors.

Three types of ablation are distinguished according to place of appearance: subglacial (or bottom), internal, and surface. The internal heat of the earth, springs (particularly warm ones) surfacing in the glacier bed, and heat caused by the friction of the glacier in its bed are some of the causes of subglacial ablation. Internal ablation is caused by friction between the glacier components and by the circulation of water and air. The glacier surface receives warmth predominantly from solar radiation and from the air. The thermal balance of the glacier surface is the basis of all surface ablation processes. The term “ablation” is sometimes used as well as a synonym for “surface washoff.”

ablation

[ə′blā·shən]
(aerospace engineering)
The intentional removal of material from a nose cone or spacecraft during high-speed movement through a planetary atmosphere to provide thermal protection to the underlying structure.
(geology)
The wearing away of rocks, as by erosion or weathering.
(hydrology)
The reduction in volume of a glacier due to melting and evaporation.
(medicine)
The removal of tissue or a part of the body by surgery, such as by excision or amputation.
References in periodicals archive ?
Throughout the forecast period, there is expected to be a significant growth in demand for catheter-based ablation procedures due to an increase in public knowledge, technological improvements and an increase in the number of EP labs in rural areas.
To study the incremental cost-effectiveness of catheter ablation, compared with cardioversion and antiarrhythmic drug therapy, Dr.
While myolysis with resection resulted in a reduced need for hysterectomy compared with ablation alone, the best outcomes in terms of reduced need for reoperation were in those who underwent myolysis plus endometrial ablation--with or without resection, he concluded.
Widely used in England, endometrial ablation has not been embraced by many American surgeons who believe that these women would eventually have to undergo a hysterectomy anyway.
Cryoablation devices are the only kind of ablation device that can be used to treat prostate cancer.
The majority of women who undergo endometrial ablation are in their reproductive years, so many of them request Essure sterilization to control fertility after or during endometrial ablation," Rafael F.
In the study, 317 premenopausal women with menorrhagia were randomized to receive microwave endometrial ablation or rollerball ablation in a 2:1 ratio.
However, the microwave ablation technology segment is expected to grow at the highest CAGR in the next five years, owing to factors such as recently proven clinical efficiency in cancer treatments, growing adoption of microwave tumor ablation among healthcare professionals to treat various cancers, increasing private funding for novel product developments, advantages offered by microwave techniques over other tumor ablation techniques, ongoing technological advancements in the field of microwave ablation, and expansion in the application horizon of microwave ablation techniques for various cancers.
The main message [from the survey results] is that people need to be careful using catheter ablation for atrial fibrillation," said Dr.
NYSE: MDT) today announced it received Health Canada approval for the Medtronic Ablation Frontiers Cardiac Ablation System, a novel radiofrequency (RF) ablation technology for the treatment of atrial fibrillation (AF).
According to a new market research report " Tumor Ablation Market by Technology (Radiofrequency, Microwave, Cryoablation, IRE, Ultrasound), Mode of treatment (Surgical, Laparoscopic, Percutaneous), Application (Liver, Lung, Kidney, Bone Metastasis, Prostate, Breast) - Global Forecasts to 2020 " , published by MarketsandMarkets, the global Tumor Ablation Market Is Poised to Reach $515.