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Comparison of ultrasonography and oral cholecystography in lithotripsy. II. Determining retreatment.

Publication ,  Journal Article
Baumgartner, BR; Jones, MT; Torres, WE; Nelson, RC; Peterson, JE
Published in: Invest Radiol
July 1991

Both ultrasonography (US) and oral cholecystography (OCG) are being used to evaluate patients after extracorporeal shock wave lithotripsy (ESWL) for gallstones. Criteria for retreatment after the initial ESWL are usually related to the size of the residual fragments. This study examines the efficacy of ultrasound and OCG for determining both the size and number of stone fragments in the gallbladder in an in vitro model and in patients. Ultrasonography and OCG examinations using an in vitro ESWL phantom with ten groups of stones, and on 39 patients, were reviewed independently by three radiologists to determine both the size and number of stone fragments. For the in vitro study, the three readers estimated the correct number of fragments, or the next closest range, in 87% of observations by OCG and in 43% by US. The size of the largest fragment was measured within 1 mm of its actual size in 87% of observations by OCG and 20% by US. Correlation coefficients for the mean measurements of the three readers versus the actual fragment size and number were greater for OCG than for US. For the in vivo study, the three readers agreed in 47% of the OCG versus 32% of US examinations with respect to the number of fragments, and in 65% of OCG compared to 40% of US studies with respect to size of the largest fragment. Multiple statistical analyses demonstrate that these differences are statistically significant. A discrepancy among the readers concerning whether a patient was eligible for retreatment occurred in 15% of OCG as compared to 45% of US studies. Both the in vivo and in vitro studies indicate that there is more interobserver reproducibility for OCG than for US, and that OCG is more reliable in making the decision concerning patient eligibility for retreatment following lithotripsy.

Duke Scholars

Published In

Invest Radiol

DOI

ISSN

0020-9996

Publication Date

July 1991

Volume

26

Issue

7

Start / End Page

636 / 639

Location

United States

Related Subject Headings

  • Ultrasonography
  • Retrospective Studies
  • Radiography, Interventional
  • Nuclear Medicine & Medical Imaging
  • Models, Structural
  • Middle Aged
  • Male
  • Lithotripsy
  • In Vitro Techniques
  • Humans
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Baumgartner, B. R., Jones, M. T., Torres, W. E., Nelson, R. C., & Peterson, J. E. (1991). Comparison of ultrasonography and oral cholecystography in lithotripsy. II. Determining retreatment. Invest Radiol, 26(7), 636–639. https://doi.org/10.1097/00004424-199107000-00002
Baumgartner, B. R., M. T. Jones, W. E. Torres, R. C. Nelson, and J. E. Peterson. “Comparison of ultrasonography and oral cholecystography in lithotripsy. II. Determining retreatment.Invest Radiol 26, no. 7 (July 1991): 636–39. https://doi.org/10.1097/00004424-199107000-00002.
Baumgartner BR, Jones MT, Torres WE, Nelson RC, Peterson JE. Comparison of ultrasonography and oral cholecystography in lithotripsy. II. Determining retreatment. Invest Radiol. 1991 Jul;26(7):636–9.
Baumgartner, B. R., et al. “Comparison of ultrasonography and oral cholecystography in lithotripsy. II. Determining retreatment.Invest Radiol, vol. 26, no. 7, July 1991, pp. 636–39. Pubmed, doi:10.1097/00004424-199107000-00002.
Baumgartner BR, Jones MT, Torres WE, Nelson RC, Peterson JE. Comparison of ultrasonography and oral cholecystography in lithotripsy. II. Determining retreatment. Invest Radiol. 1991 Jul;26(7):636–639.

Published In

Invest Radiol

DOI

ISSN

0020-9996

Publication Date

July 1991

Volume

26

Issue

7

Start / End Page

636 / 639

Location

United States

Related Subject Headings

  • Ultrasonography
  • Retrospective Studies
  • Radiography, Interventional
  • Nuclear Medicine & Medical Imaging
  • Models, Structural
  • Middle Aged
  • Male
  • Lithotripsy
  • In Vitro Techniques
  • Humans