Inpatient CT and MRI utilization: Trends in the academic hospital setting

Rajan Agarwal, Meredith Bergey, Seema Sonnad, Howard Butowsky, Mythreyi Bhargavan, Michael H. Bleshman

Research output: Contribution to journalArticle

Abstract

Purpose The aim of this study was to determine trends in the utilization of inpatient CT and MRI at academic medical centers. Methods Surveys requesting inpatient CT volumes, inpatient MRI volumes, discharges excluding newborns, and case-adjusted mix index from 2002 to 2007 were e-mailed to all 123 members of the Society of Chairmen of Academic Radiology Departments. CT and MRI studies per discharge were adjusted using the case mix index (CMI) provided by each hospital to adjust for the differences in patient mix at participating institutions. Trends in adjusted inpatient imaging utilization were compared over time and across responding institutions. Results Twenty-two of 123 chairs (17.9%) of academic radiology departments, representing all geographic regions and a wide variability in National Institutes of Health research funding ranking, provided responses to our survey. Between 2002 and 2007, there was an increase in median CMI-adjusted CT studies per discharge of 28.0% and an increase in median CMI-adjusted MRI studies per discharge of 19.8%. The largest annual percentage increase in CT utilization (20.2%) occurred from 2003 to 2004, and there was negative growth between 2006 and 2007 of -3.74%. The largest annual percentage increase in MRI utilization (13.9%) occurred from 2006 to 2007, with 3 years of negative growth from 2002 to 2003, 2004 to 2005, and 2005 to 2006. In 2007, there was a wide range in CMI-adjusted CT studies per discharge between institutions from 0.16 to 0.75, with a mean of 0.40 ± 0.18, with a corresponding wide range in CMI-adjusted MRI studies per discharge of 0.04 to 0.16, with a mean of 0.09 ± 0.03. Conclusion There has been large growth in inpatient CT and MRI utilization at academic medical centers. This growth is variable over time and between institutions. Practice leaders can use this information to compare themselves with their peers and to monitor the impact of programmatic improvements on inpatient imaging utilization and in discussions with health system leaders who would like to improve system profitability by decreasing costly inpatient imaging procedures.

Original languageEnglish (US)
Pages (from-to)949-955
Number of pages7
JournalJournal of the American College of Radiology
Volume7
Issue number12
DOIs
StatePublished - 2010
Externally publishedYes

Fingerprint

Diagnosis-Related Groups
Inpatients
Growth
Radiology
Cone-Beam Computed Tomography
National Institutes of Health (U.S.)
Newborn Infant
Health
Research

Keywords

  • Academic medical center
  • CT
  • Inpatient
  • Medical economics
  • MRI
  • Radiology
  • Socioeconomic issues
  • Utilization of imaging

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Agarwal, R., Bergey, M., Sonnad, S., Butowsky, H., Bhargavan, M., & Bleshman, M. H. (2010). Inpatient CT and MRI utilization: Trends in the academic hospital setting. Journal of the American College of Radiology, 7(12), 949-955. https://doi.org/10.1016/j.jacr.2010.08.015

Inpatient CT and MRI utilization : Trends in the academic hospital setting. / Agarwal, Rajan; Bergey, Meredith; Sonnad, Seema; Butowsky, Howard; Bhargavan, Mythreyi; Bleshman, Michael H.

In: Journal of the American College of Radiology, Vol. 7, No. 12, 2010, p. 949-955.

Research output: Contribution to journalArticle

Agarwal, R, Bergey, M, Sonnad, S, Butowsky, H, Bhargavan, M & Bleshman, MH 2010, 'Inpatient CT and MRI utilization: Trends in the academic hospital setting', Journal of the American College of Radiology, vol. 7, no. 12, pp. 949-955. https://doi.org/10.1016/j.jacr.2010.08.015
Agarwal, Rajan ; Bergey, Meredith ; Sonnad, Seema ; Butowsky, Howard ; Bhargavan, Mythreyi ; Bleshman, Michael H. / Inpatient CT and MRI utilization : Trends in the academic hospital setting. In: Journal of the American College of Radiology. 2010 ; Vol. 7, No. 12. pp. 949-955.
@article{6a5ad09e25314ddd92d3f2eeb9c407e3,
title = "Inpatient CT and MRI utilization: Trends in the academic hospital setting",
abstract = "Purpose The aim of this study was to determine trends in the utilization of inpatient CT and MRI at academic medical centers. Methods Surveys requesting inpatient CT volumes, inpatient MRI volumes, discharges excluding newborns, and case-adjusted mix index from 2002 to 2007 were e-mailed to all 123 members of the Society of Chairmen of Academic Radiology Departments. CT and MRI studies per discharge were adjusted using the case mix index (CMI) provided by each hospital to adjust for the differences in patient mix at participating institutions. Trends in adjusted inpatient imaging utilization were compared over time and across responding institutions. Results Twenty-two of 123 chairs (17.9{\%}) of academic radiology departments, representing all geographic regions and a wide variability in National Institutes of Health research funding ranking, provided responses to our survey. Between 2002 and 2007, there was an increase in median CMI-adjusted CT studies per discharge of 28.0{\%} and an increase in median CMI-adjusted MRI studies per discharge of 19.8{\%}. The largest annual percentage increase in CT utilization (20.2{\%}) occurred from 2003 to 2004, and there was negative growth between 2006 and 2007 of -3.74{\%}. The largest annual percentage increase in MRI utilization (13.9{\%}) occurred from 2006 to 2007, with 3 years of negative growth from 2002 to 2003, 2004 to 2005, and 2005 to 2006. In 2007, there was a wide range in CMI-adjusted CT studies per discharge between institutions from 0.16 to 0.75, with a mean of 0.40 ± 0.18, with a corresponding wide range in CMI-adjusted MRI studies per discharge of 0.04 to 0.16, with a mean of 0.09 ± 0.03. Conclusion There has been large growth in inpatient CT and MRI utilization at academic medical centers. This growth is variable over time and between institutions. Practice leaders can use this information to compare themselves with their peers and to monitor the impact of programmatic improvements on inpatient imaging utilization and in discussions with health system leaders who would like to improve system profitability by decreasing costly inpatient imaging procedures.",
keywords = "Academic medical center, CT, Inpatient, Medical economics, MRI, Radiology, Socioeconomic issues, Utilization of imaging",
author = "Rajan Agarwal and Meredith Bergey and Seema Sonnad and Howard Butowsky and Mythreyi Bhargavan and Bleshman, {Michael H.}",
year = "2010",
doi = "10.1016/j.jacr.2010.08.015",
language = "English (US)",
volume = "7",
pages = "949--955",
journal = "Journal of the American College of Radiology",
issn = "1558-349X",
publisher = "Elsevier BV",
number = "12",

}

TY - JOUR

T1 - Inpatient CT and MRI utilization

T2 - Trends in the academic hospital setting

AU - Agarwal, Rajan

AU - Bergey, Meredith

AU - Sonnad, Seema

AU - Butowsky, Howard

AU - Bhargavan, Mythreyi

AU - Bleshman, Michael H.

PY - 2010

Y1 - 2010

N2 - Purpose The aim of this study was to determine trends in the utilization of inpatient CT and MRI at academic medical centers. Methods Surveys requesting inpatient CT volumes, inpatient MRI volumes, discharges excluding newborns, and case-adjusted mix index from 2002 to 2007 were e-mailed to all 123 members of the Society of Chairmen of Academic Radiology Departments. CT and MRI studies per discharge were adjusted using the case mix index (CMI) provided by each hospital to adjust for the differences in patient mix at participating institutions. Trends in adjusted inpatient imaging utilization were compared over time and across responding institutions. Results Twenty-two of 123 chairs (17.9%) of academic radiology departments, representing all geographic regions and a wide variability in National Institutes of Health research funding ranking, provided responses to our survey. Between 2002 and 2007, there was an increase in median CMI-adjusted CT studies per discharge of 28.0% and an increase in median CMI-adjusted MRI studies per discharge of 19.8%. The largest annual percentage increase in CT utilization (20.2%) occurred from 2003 to 2004, and there was negative growth between 2006 and 2007 of -3.74%. The largest annual percentage increase in MRI utilization (13.9%) occurred from 2006 to 2007, with 3 years of negative growth from 2002 to 2003, 2004 to 2005, and 2005 to 2006. In 2007, there was a wide range in CMI-adjusted CT studies per discharge between institutions from 0.16 to 0.75, with a mean of 0.40 ± 0.18, with a corresponding wide range in CMI-adjusted MRI studies per discharge of 0.04 to 0.16, with a mean of 0.09 ± 0.03. Conclusion There has been large growth in inpatient CT and MRI utilization at academic medical centers. This growth is variable over time and between institutions. Practice leaders can use this information to compare themselves with their peers and to monitor the impact of programmatic improvements on inpatient imaging utilization and in discussions with health system leaders who would like to improve system profitability by decreasing costly inpatient imaging procedures.

AB - Purpose The aim of this study was to determine trends in the utilization of inpatient CT and MRI at academic medical centers. Methods Surveys requesting inpatient CT volumes, inpatient MRI volumes, discharges excluding newborns, and case-adjusted mix index from 2002 to 2007 were e-mailed to all 123 members of the Society of Chairmen of Academic Radiology Departments. CT and MRI studies per discharge were adjusted using the case mix index (CMI) provided by each hospital to adjust for the differences in patient mix at participating institutions. Trends in adjusted inpatient imaging utilization were compared over time and across responding institutions. Results Twenty-two of 123 chairs (17.9%) of academic radiology departments, representing all geographic regions and a wide variability in National Institutes of Health research funding ranking, provided responses to our survey. Between 2002 and 2007, there was an increase in median CMI-adjusted CT studies per discharge of 28.0% and an increase in median CMI-adjusted MRI studies per discharge of 19.8%. The largest annual percentage increase in CT utilization (20.2%) occurred from 2003 to 2004, and there was negative growth between 2006 and 2007 of -3.74%. The largest annual percentage increase in MRI utilization (13.9%) occurred from 2006 to 2007, with 3 years of negative growth from 2002 to 2003, 2004 to 2005, and 2005 to 2006. In 2007, there was a wide range in CMI-adjusted CT studies per discharge between institutions from 0.16 to 0.75, with a mean of 0.40 ± 0.18, with a corresponding wide range in CMI-adjusted MRI studies per discharge of 0.04 to 0.16, with a mean of 0.09 ± 0.03. Conclusion There has been large growth in inpatient CT and MRI utilization at academic medical centers. This growth is variable over time and between institutions. Practice leaders can use this information to compare themselves with their peers and to monitor the impact of programmatic improvements on inpatient imaging utilization and in discussions with health system leaders who would like to improve system profitability by decreasing costly inpatient imaging procedures.

KW - Academic medical center

KW - CT

KW - Inpatient

KW - Medical economics

KW - MRI

KW - Radiology

KW - Socioeconomic issues

KW - Utilization of imaging

UR - http://www.scopus.com/inward/record.url?scp=84928096010&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84928096010&partnerID=8YFLogxK

U2 - 10.1016/j.jacr.2010.08.015

DO - 10.1016/j.jacr.2010.08.015

M3 - Article

C2 - 21129686

AN - SCOPUS:84928096010

VL - 7

SP - 949

EP - 955

JO - Journal of the American College of Radiology

JF - Journal of the American College of Radiology

SN - 1558-349X

IS - 12

ER -