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Excess of radiation burden for young testicular cancer patients using automatic exposure control and contrast agent on whole-body computed tomography imaging Cover

Excess of radiation burden for young testicular cancer patients using automatic exposure control and contrast agent on whole-body computed tomography imaging

Radiology and Oncology
Volume 51 (2017): Issue 2 (June 2017)
By: ,  ,  ,  ,   and    
Open Access
|Feb 2017
Figures & tables

Figures & Tables

Boxplot of effective dose by device. The difference between devices is highly significant (p < 0.0001, Wilcoxon’s).

Table 1

Patient characteristics at the time of the first whole-body scan

CharacteristicValue
Number of patients65
Median age (years)28 (range 16.5-39.4)
Number of patients with seminoma/non-seminoma26/39
Median waist circumference (cm)†92.2 (range 66.9-126.3)
Total number of whole-body CTEs279
Mean number of whole-body CTEs/patient4.3 (SD 2.6)
Number of whole body CTEs

  • - LightSpeed 16

  • - Plus 4

  • 137 (49.1%)

  • 142 (50.2%)

Number of whole-body CTE with IV contrast

  • -LightSpeed 16

  • -Plus 4

  • 104 (75.9)

  • 112 (78.9)

CTE = computed tomography examinations

† The waist circumference was measured midway between the lowest rib and the iliac crest from one exial CT image.

Effective dose versus waist circumference by scanner type in whole-body examinations. A wider variation of effective doses is observed for the LightSpeed 16 device.

Table 2

Mean effective dose and SD (mSv) by device and waist circumference with and without IV contrast

LightSpeed 16*Plus 4**
Waist circumference< 100 cm≥ 100 cm< 100 cm≥ 100 cm
With IV13.6 (3.2)17.5 (6.1)7.4 (1.2)8.5 (3.3)
Without IV10.7 (2.0)12.8 (1.9)6.2 (0.5)7.7 (2.5)
All12.8 (3.2)16.7 (5.9)7.2 (1.2)8.2 (3.0)

* The p-value (Wilcoxon two-sample test) between waist circumference over and under 100 cm p=0.003

** The p-value (Wilcoxon two-sample test) between waist circumference over and under 100 cm p=0.003

DOI: https://doi.org/10.1515/raon-2017-0012 | Journal eISSN: 1581-3207 | Journal ISSN: 1318-2099
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Language: English
Page range: 235 - 240
Submitted on: Jul 28, 2016
Accepted on: Feb 3, 2017
Published online: Feb 26, 2017
Published in print: May 24, 2017
Published by: Association of Radiology and Oncology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
automatic exposure control,
computed tomography,
contrast agent,
radiation exposure,
waist circumference
Related subjects:
Medicine,
Clinical medicine,
Radiology

© 2017 Hannele Niiniviita, Jarmo Kulmala, Tuukka Pölönen, Heli Määttänen, Hannu Järvinen, Eeva Salminen, published by Association of Radiology and Oncology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 51 (2017): Issue 2 (June 2017)
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