Bowtie filter | definition of bowtie filter by Medical dictionary
a filter shaped like a bowtie that may be used in computed tomography to compensate for the shape of the patient's head or body. It is used with fan-shaped x-ray beams to equalize the amount of radiation reaching the film.
References in periodicals archive
Whenever possible the field of view (FOV) on the axial plane is limited to 25 cm in addition to using a proper size cardiac bowtie filter (small for GE scanners and medium for Toshiba Aquilion One scanner) so that the X-ray beam can be limited mostly to cardiac structures (20-22).
For example, the use of a proper bowtie filter was suggested as an important measure for limiting radiation dose in a letter communication by Budoff et al.