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Interobserver agreement in the results of Doppler examinations of extrauterine pelvic tumors

Sladkevicius, Povilas LU and Valentin, Lil LU (1995) In Ultrasound in Obstetrics & Gynecology 6(2). p.91-96
Abstract
The aim of this study was to evaluate interobserver agreement in the results of Doppler measurements of peak systolic velocity (PSV), time-averaged maximum velocity (TAMXV) and the color content of tumor scans in extrauterine pelvic tumors. The results of transvaginal color and spectral Doppler examinations of 66 extrauterine pelvic masses obtained by two observers experienced in ultrasonography were compared. Each observer aimed to obtain the highest possible Doppler shift from arteries in the wall, septa and solid parts of each tumor. Tumor vascularization was assessed in terms of the 'tumor color score', i.e. the color content of the Doppler scan as rated for the tumor as a whole by each observer on a visual analog scale. The tumors... (More)
The aim of this study was to evaluate interobserver agreement in the results of Doppler measurements of peak systolic velocity (PSV), time-averaged maximum velocity (TAMXV) and the color content of tumor scans in extrauterine pelvic tumors. The results of transvaginal color and spectral Doppler examinations of 66 extrauterine pelvic masses obtained by two observers experienced in ultrasonography were compared. Each observer aimed to obtain the highest possible Doppler shift from arteries in the wall, septa and solid parts of each tumor. Tumor vascularization was assessed in terms of the 'tumor color score', i.e. the color content of the Doppler scan as rated for the tumor as a whole by each observer on a visual analog scale. The tumors were classified according to arbitrarily chosen cut-off limits for the tumor color score, the highest tumor TAMXV and the highest tumor PSV. Inter-class correlation coefficient values for TAMXV and PSV were < or = 0.75, whereas that for tumor color score was 0.89. Interobserver agreement was complete for the detection of color in tumors (Kappa value 1.0), excellent for the recording of arterial Doppler shift spectra from tumors (Kappa value 0.82), and moderate or good for classifying tumors based on cut-off limits for TAMXV, PSV (Kappa values ranging from 0.44 to 0.67) and tumor color score (Kappa values ranging from 0.59 to 0.66).(ABSTRACT TRUNCATED AT 250 WORDS) (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Doppler velocimetry, reproducibility, tumor
in
Ultrasound in Obstetrics & Gynecology
volume
6
issue
2
pages
91 - 96
publisher
John Wiley & Sons
external identifiers
  • scopus:0029349033
ISSN
1469-0705
DOI
10.1046/j.1469-0705.1995.06020091.x
language
English
LU publication?
yes
id
405ed34a-6fab-42d5-8426-a71c1cc4aad9 (old id 1109509)
date added to LUP
2008-07-28 16:14:14
date last changed
2017-01-01 07:20:29
@article{405ed34a-6fab-42d5-8426-a71c1cc4aad9,
  abstract     = {The aim of this study was to evaluate interobserver agreement in the results of Doppler measurements of peak systolic velocity (PSV), time-averaged maximum velocity (TAMXV) and the color content of tumor scans in extrauterine pelvic tumors. The results of transvaginal color and spectral Doppler examinations of 66 extrauterine pelvic masses obtained by two observers experienced in ultrasonography were compared. Each observer aimed to obtain the highest possible Doppler shift from arteries in the wall, septa and solid parts of each tumor. Tumor vascularization was assessed in terms of the 'tumor color score', i.e. the color content of the Doppler scan as rated for the tumor as a whole by each observer on a visual analog scale. The tumors were classified according to arbitrarily chosen cut-off limits for the tumor color score, the highest tumor TAMXV and the highest tumor PSV. Inter-class correlation coefficient values for TAMXV and PSV were &lt; or = 0.75, whereas that for tumor color score was 0.89. Interobserver agreement was complete for the detection of color in tumors (Kappa value 1.0), excellent for the recording of arterial Doppler shift spectra from tumors (Kappa value 0.82), and moderate or good for classifying tumors based on cut-off limits for TAMXV, PSV (Kappa values ranging from 0.44 to 0.67) and tumor color score (Kappa values ranging from 0.59 to 0.66).(ABSTRACT TRUNCATED AT 250 WORDS)},
  author       = {Sladkevicius, Povilas and Valentin, Lil},
  issn         = {1469-0705},
  keyword      = {Doppler velocimetry,reproducibility,tumor},
  language     = {eng},
  number       = {2},
  pages        = {91--96},
  publisher    = {John Wiley & Sons},
  series       = {Ultrasound in Obstetrics & Gynecology},
  title        = {Interobserver agreement in the results of Doppler examinations of extrauterine pelvic tumors},
  url          = {http://dx.doi.org/10.1046/j.1469-0705.1995.06020091.x},
  volume       = {6},
  year         = {1995},
}