Rapid bedside coronary angiography with a portable fluoroscopic imaging system.
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.
Aliabadi
D
D
Division of Cardiology, William Beaumont Hospital, Royal Oak, Michigan 48073-6769, USA.
Pica
M C
MC
McCullough
P A
PA
Grines
C L
CL
Safian
R D
RD
O'Neill
W W
WW
Goldstein
J A
JA
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