title: Rapid bedside coronary angiography with a portable fluoroscopic imaging system.
abstract: The ability to perform coronary angiography rapidly at the bedside has multiple potential applications. This study was designed to determine whether a novel portable angiographic system (OEC Medical Systems, series 9600, Salt Lake City, Utah) is capable of producing high-quality angiograms. In 29 patients (70 vessels) undergoing elective catheterization in a conventional fixed laboratory (Siemens HICOR, Erlangen, Germany), we compared images obtained with the portable system to those from conventional fixed system. The portable system was 100% accurate in detecting both insignificant narrowing as well as significant stenoses (> 50% narrowing). There was complete concordance between systems for lesion location, TIMI flow, and collaterals. Thirty-two stenoses were analyzed in detail. Both quantitative and qualitative percent stenosis demonstrated similar value for lesion severity with both systems (R = 0.95, Kappa = 0.77, P < 0.001, respectively). Accuracy of lesion morphology by the portable system was similar to the fixed system (calcification 80%, eccentricity 92%). These findings demonstrate that a portable imaging system can produce high-quality coronary angiograms.
authors.affiliation: Division of Cardiology, William Beaumont Hospital, Royal Oak, Michigan 48073-6769, USA.
authors.forename: D
authors.initials: D
authors.lastname: Aliabadi
authors.forename: M C
authors.initials: MC
authors.lastname: Pica
authors.forename: P A
authors.initials: PA
authors.lastname: McCullough
authors.forename: C L
authors.initials: CL
authors.lastname: Grines
authors.forename: R D
authors.initials: RD
authors.lastname: Safian
authors.forename: W W
authors.initials: WW
authors.lastname: O'Neill
authors.forename: J A
authors.initials: JA
authors.lastname: Goldstein
mesh_terms: D000328:Adult; D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography / Q000295:instrumentation*; D005471:Fluoroscopy / Q000295:instrumentation*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation; D008875:Middle Aged; D019095:Point-of-Care Systems; D011184:Postoperative Period; D012016:Reference Values