Image quality assessment in contemporary interventional cardiology laboratories: Spatial and low-contrast video resolution

Laskey, Warren K.; Stueve, Richard; Wondrow, Merrill A.; Grill, Diane E.; Holmes, David R.

doi:10.1002/(sici)1522-726x(200006)50:2<257::aid-ccd24>3.0.co;2-e

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Recent data indicate that, of 64 systems tested nationally, 50% fail to visualize a wire diameter of 0.017Љ in the dynamic mode. This finding serves to reaffirm the continued need for image quality assessment on a routine schedule [9]. Quality assurance and control are cost-effective processes when implemented as management tools (as opposed to a regulatory requirement).…”

Section: Discussionmentioning

confidence: 99%

Cardiac catheterization laboratory imaging quality assurance program

Wondrow

Laskey

Hildner

et al. 2001

Cathet. Cardiovasc. Intervent.

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With the recent approval of the National Electrical Manufacturers Association (NEMA) standard for "Characteristics of and Test Procedures for a Phantom to Benchmark Cardiac Fluoroscopic and Photographic Performance," comprehensive cardiac image assurance control programs are now possible. This standard was developed by a joint NEMA/Society for Cardiac Angiography and Interventions (SCA&I) working group of imaging manufacturers and cardiology society professionals over the past 4 years. This article details a cardiac catheterization laboratory image quality assurance and control program that includes the new standard along with current regulatory requirements for cardiac imaging. Because of the recent proliferation of digital imaging equipment, quality assurance for cardiac imaging fluoroscopy and digital imaging are critical. Included are the previous works recommended by the American College of Cardiology (ACC) and American Heart Association (AHA), Society for Cardiac Angiographers and Interventions (SCA&I), and authors of previous image quality subjects.

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Section: Discussionmentioning

confidence: 99%

Cardiac catheterization laboratory imaging quality assurance program

Wondrow

Laskey

Hildner

et al. 2001

Cathet. Cardiovasc. Intervent.

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“…SCA&I recommends a program of periodic evaluation of imaging system performance and image quality. Unfortunately, there is little consistency across labs with respect to image quality 25 . This is due to the lack of universally accepted performance standards for this measure.…”

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confidence: 99%

Assessing Quality in the Cardiac Catheterization Laboratory

2003

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Quality assurance and improvement have increasingly been the focus of health care providers, third-party payers, and patients. Because cardiovascular procedures are common, easily identifiable with claims data, and account for a relatively large proportion of health care expenditures, particular attention has been paid to quality assurance in the setting of the diagnostic and interventional cardiac catheterization laboratory. The structure, process, and outcomes domains of quality measurement in the interventional laboratory involve the maintenance of volume standards, the availability of surgical backup, consistent tracking of procedural outcomes and complications so they can be compared with national standards, and the application of evidence-based therapy. Quality assurance i the diagnostic laboratory revolves around the clinical proficiency of the operators, the maintenance and management of catheterization laboratory equipment, and the presence of a continuous quality improvement program. The evolution of interventional equipment and techniques along with the establishment of national registries has led to a gradual improvement in the quality of percutaneous coronary intervention. Given the dynamic nature of cardiology, adaptable quality assurance and quality improvement programs will remain the foundation of successful catheterization labs.

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Fluoroscopic image quality in the film and filmless eras: A standardized comparison performed in coronary interventional facilities

Laskey

Wondrow²,

Chambers

2003

Cathet Cardio Intervent

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One hundred and one coronary interventional systems (45 primarily film-based predigital systems, labeled group 1; and 56 filmless digital systems, labeled group 2) were examined over a 5-year period using a standardized imaging phantom. Fluoroscopic image intensifier input dose, high-contrast spatial resolution, low-contrast sensitivity, and static and dynamic low-contrast resolution were assessed under several conditions simulating patient body habitus. The distribution of spatial resolutions in group 2 facilities favored higher line pair resolution over group 1 (P = 0.01). Contrast sensitivity (smallest-diameter hole visualized) was consistently and significantly enhanced with the use of digital imaging under both medium (P = 0.001) and large (P = 0.002) patient habitus simulations. Low-contrast video resolution (number of wires seen) under static (P = 0.007) and dynamic (P = 0.002) conditions was also improved in the digital facilities. However, image intensifer input dose was similar in both groups (group 1 median dose, 23 mR/min; group 2 median dose, 26 mR/min; P = NS). Fluoroscopic spatial resolution in digital filmless laboratories was significantly improved when compared to predigital, film-based laboratories. Low-contrast sensitivity and low- contrast video resolution under both static and dynamic conditions were also significantly improved in the digital laboratories. Notably, the input dose of radiation required to produce these improved fluoroscopic images was similar between groups.

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Image quality assessment in contemporary interventional cardiology laboratories: Spatial and low-contrast video resolution

Cited by 4 publications

References 6 publications

Cardiac catheterization laboratory imaging quality assurance program

Cardiac catheterization laboratory imaging quality assurance program

Assessing Quality in the Cardiac Catheterization Laboratory

Fluoroscopic image quality in the film and filmless eras: A standardized comparison performed in coronary interventional facilities

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