Objective measurement of motion in patients undergoing spiral CT examinations

Stephan M. Stockberger, Yun Liang, Jeffrey A. Hicklin, Justin L. Wass, Walter T. Ambrosius, Kenyon K. Kopecky

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

PURPOSE: To develop and evaluate an objective measurement of patient motion during spiral computed tomography (CT). MATERIALS AND METHODS: An acrylic rod was attracted along the length of the torso in 109 patients (56 women, 53 men; age range, 21-79 years; mean age, 51 year) who underwent abdominal spiral CT examinations. Subjective evaluation of motion was graded on a five-point scale by two radiologists. Objective measurements of motion were determined by means of computer reconstruction of the rod in three dimensions and calculation of the deviation of the rod from its estimated position in the motionless state with time. RESULTS: Complete data were available in 98 patients. Subjective and objective measurements of patient motion showed a moderately high Spearman correlation coefficient of .49 (P < .001). The correction between either observer and objective measurements was similar to the correlation between one observer and the other. CONCLUSION: This objective technique for assessing patient motion correlated well with subjective methods and may be useful in evaluating scanning parameters that may affect patient motion and hence scan quality.

Original languageEnglish
Pages (from-to)625-629
Number of pages5
JournalRadiology
Volume206
Issue number3
StatePublished - Mar 1998

Fingerprint

Spiral Computed Tomography
Torso

Keywords

  • Abdomen, CT
  • Computed tomography (CT), helical
  • Computed tomography (CT), image quality

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

Stockberger, S. M., Liang, Y., Hicklin, J. A., Wass, J. L., Ambrosius, W. T., & Kopecky, K. K. (1998). Objective measurement of motion in patients undergoing spiral CT examinations. Radiology, 206(3), 625-629.

Objective measurement of motion in patients undergoing spiral CT examinations. / Stockberger, Stephan M.; Liang, Yun; Hicklin, Jeffrey A.; Wass, Justin L.; Ambrosius, Walter T.; Kopecky, Kenyon K.

In: Radiology, Vol. 206, No. 3, 03.1998, p. 625-629.

Research output: Contribution to journalArticle

Stockberger, SM, Liang, Y, Hicklin, JA, Wass, JL, Ambrosius, WT & Kopecky, KK 1998, 'Objective measurement of motion in patients undergoing spiral CT examinations', Radiology, vol. 206, no. 3, pp. 625-629.
Stockberger SM, Liang Y, Hicklin JA, Wass JL, Ambrosius WT, Kopecky KK. Objective measurement of motion in patients undergoing spiral CT examinations. Radiology. 1998 Mar;206(3):625-629.
Stockberger, Stephan M. ; Liang, Yun ; Hicklin, Jeffrey A. ; Wass, Justin L. ; Ambrosius, Walter T. ; Kopecky, Kenyon K. / Objective measurement of motion in patients undergoing spiral CT examinations. In: Radiology. 1998 ; Vol. 206, No. 3. pp. 625-629.
@article{a6af396d6e9b48caa8d4b160102acaa5,
title = "Objective measurement of motion in patients undergoing spiral CT examinations",
abstract = "PURPOSE: To develop and evaluate an objective measurement of patient motion during spiral computed tomography (CT). MATERIALS AND METHODS: An acrylic rod was attracted along the length of the torso in 109 patients (56 women, 53 men; age range, 21-79 years; mean age, 51 year) who underwent abdominal spiral CT examinations. Subjective evaluation of motion was graded on a five-point scale by two radiologists. Objective measurements of motion were determined by means of computer reconstruction of the rod in three dimensions and calculation of the deviation of the rod from its estimated position in the motionless state with time. RESULTS: Complete data were available in 98 patients. Subjective and objective measurements of patient motion showed a moderately high Spearman correlation coefficient of .49 (P < .001). The correction between either observer and objective measurements was similar to the correlation between one observer and the other. CONCLUSION: This objective technique for assessing patient motion correlated well with subjective methods and may be useful in evaluating scanning parameters that may affect patient motion and hence scan quality.",
keywords = "Abdomen, CT, Computed tomography (CT), helical, Computed tomography (CT), image quality",
author = "Stockberger, {Stephan M.} and Yun Liang and Hicklin, {Jeffrey A.} and Wass, {Justin L.} and Ambrosius, {Walter T.} and Kopecky, {Kenyon K.}",
year = "1998",
month = "3",
language = "English",
volume = "206",
pages = "625--629",
journal = "Radiology",
issn = "0033-8419",
publisher = "Radiological Society of North America Inc.",
number = "3",

}

TY - JOUR

T1 - Objective measurement of motion in patients undergoing spiral CT examinations

AU - Stockberger, Stephan M.

AU - Liang, Yun

AU - Hicklin, Jeffrey A.

AU - Wass, Justin L.

AU - Ambrosius, Walter T.

AU - Kopecky, Kenyon K.

PY - 1998/3

Y1 - 1998/3

N2 - PURPOSE: To develop and evaluate an objective measurement of patient motion during spiral computed tomography (CT). MATERIALS AND METHODS: An acrylic rod was attracted along the length of the torso in 109 patients (56 women, 53 men; age range, 21-79 years; mean age, 51 year) who underwent abdominal spiral CT examinations. Subjective evaluation of motion was graded on a five-point scale by two radiologists. Objective measurements of motion were determined by means of computer reconstruction of the rod in three dimensions and calculation of the deviation of the rod from its estimated position in the motionless state with time. RESULTS: Complete data were available in 98 patients. Subjective and objective measurements of patient motion showed a moderately high Spearman correlation coefficient of .49 (P < .001). The correction between either observer and objective measurements was similar to the correlation between one observer and the other. CONCLUSION: This objective technique for assessing patient motion correlated well with subjective methods and may be useful in evaluating scanning parameters that may affect patient motion and hence scan quality.

AB - PURPOSE: To develop and evaluate an objective measurement of patient motion during spiral computed tomography (CT). MATERIALS AND METHODS: An acrylic rod was attracted along the length of the torso in 109 patients (56 women, 53 men; age range, 21-79 years; mean age, 51 year) who underwent abdominal spiral CT examinations. Subjective evaluation of motion was graded on a five-point scale by two radiologists. Objective measurements of motion were determined by means of computer reconstruction of the rod in three dimensions and calculation of the deviation of the rod from its estimated position in the motionless state with time. RESULTS: Complete data were available in 98 patients. Subjective and objective measurements of patient motion showed a moderately high Spearman correlation coefficient of .49 (P < .001). The correction between either observer and objective measurements was similar to the correlation between one observer and the other. CONCLUSION: This objective technique for assessing patient motion correlated well with subjective methods and may be useful in evaluating scanning parameters that may affect patient motion and hence scan quality.

KW - Abdomen, CT

KW - Computed tomography (CT), helical

KW - Computed tomography (CT), image quality

UR - http://www.scopus.com/inward/record.url?scp=2642670307&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2642670307&partnerID=8YFLogxK

M3 - Article

C2 - 9494477

AN - SCOPUS:2642670307

VL - 206

SP - 625

EP - 629

JO - Radiology

JF - Radiology

SN - 0033-8419

IS - 3

ER -