title: Open-floored concave compensating filter for angiography.
abstract: An open-floored concave compensating filter was designed that produced a radiograph of uniform density, caused no artifacts due to its shape or position, and required little or no increase in exposure in most applications. Selective celiac, hepatic, shoulder, and pelvic angiography was performed with use of the filter; image quality was noticeably improved.
authors.affiliation: Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston 77030.
authors.forename: J M
authors.initials: JM
authors.lastname: Johnston
authors.forename: C H
authors.initials: CH
authors.lastname: Carrasco
authors.forename: W R
authors.initials: WR
authors.lastname: Richli
authors.forename: L M
authors.initials: LM
authors.lastname: Marsch
mesh_terms: D000792:Angiography / Q000295:instrumentation* / Q000379:methods; D005260:Female; D005374:Filtration / Q000295:instrumentation*; D006499:Hepatic Artery / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D010388:Pelvis / Q000098:blood supply / Q000000981:diagnostic imaging; D012782:Shoulder / Q000098:blood supply / Q000000981:diagnostic imaging