Effect of Multislice CT Technology on Scanner Productivity

Effect of Multislice CT Technology on Scanner Productivity

In this study we analyzed the impact of multislice CT technology on scanner productivity in a tertiary care medical center. We compared the productivity of two diagnostic CT scanners during the periods January 1 to August 31, 1999 (when both scanners had single-slice CT capability) and January 1 to...

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Bibliographic Details
Published in:American journal of roentgenology (1976) Vol. 177; no. 4; pp. 769 - 772
Main Authors: Jhaveri, Kartik S, Saini, Sanjay, Levine, Leonard A, Piazzo, David J, Doncaster, Ronald J, Halpern, Elkan F, Jordan, Patrick F, Thrall, James H
Format: Journal Article
Language:English
Published: Leesburg, VA Am Roentgen Ray Soc 01-10-2001
American Roentgen Ray Society
Subjects:
Biological and medical sciences
Efficiency
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Miscellaneous. Technology
Radiodiagnosis. Nmr imagery. Nmr spectrometry
Tomography, X-Ray Computed - methods
Tomography, X-Ray Computed - statistics & numerical data
Human
Productivity
Scanner
Statistical analysis
Health center
Radiodiagnosis
Technology
Tertiary
Medical imagery
Influence
Multislice
Computerized axial tomography
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Summary:In this study we analyzed the impact of multislice CT technology on scanner productivity in a tertiary care medical center. We compared the productivity of two diagnostic CT scanners during the periods January 1 to August 31, 1999 (when both scanners had single-slice CT capability) and January 1 to August 31, 2000 (when one of these scanners was replaced with a multislice CT scanner). The scanners were used primarily for outpatients during the day shift and for inpatients during the evening shift; the demand for CT services was stable. For this analysis, we queried the hospital's radiology information system and identified the number of CT examinations performed during the two analysis periods. We also determined the examination mix, including proportion of enhanced and unenhanced examinations and the anatomic region examined, to ensure comparable patient populations. Statistical analysis was performed. The number of CT studies performed on the two scanners increased by 1772 (13.1%) from 13,548 (before multislice CT) to 15,320 (when multislice CT was available). The number of examinations enhanced with contrast media increased from 52% to 65%. Between 9:00 A.M. and 5:00 P.M., the number of CT examinations was similar on the single-slice scanners in the two periods (p > 0.05). However, in the period when multislice CT was available, the number of studies performed on the multislice scanner (5919) was 51.9% higher than those performed using the single-slice scanner (3896) (p < 0.0006). Using a multislice CT scanner leads to an increase in CT productivity, even though multislice studies are performed using more complicated protocols than are used on a single-slice CT scanner.
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ISSN:0361-803X
1546-3141
DOI:10.2214/ajr.177.4.1770769