compensating filter


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compensating filter

In radiography, a filter that shields less dense areas to produce a more nearly uniform radiographic image.
See also: filter
References in periodicals archive ?
The angiographs were produced with and without lateral filters and a diaphragmatic compensating filter constructed at our institution.
Several strategies may be employed to alleviate this phenomenon, including patient positioning, magnification of digital fluoroscopic images, and use of compensating filters. Completing the filling CMG while the patient is supine overcomes most of these technical challenges, but this position is avoided when possible during urodynamics testing because it does not reproduce LUTS as well as upright (sitting or standing) positions.
New to the 11th edition of this three-volume textbook and reference are the addition of a projection of the Coyle Method for demonstrating the elbow after trauma and a modification of the Judet Method of demonstrating the acetabulum on trauma patients; a new chapter on the theory and use of compensating filters; all new high resolution CT and MRI images in the sectional anatomy chapter; and expanded attention to the methods and uses of computed radiography and direct digital radiography.