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Partial ring artifact on cardiac CT: image presentation and clinical implication

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Abstract

In computed tomography (CT), the term “artifact” is applied to any systematic discrepancy between the CT numbers in the reconstructed image and the true attenuation coefficients of the object. A partial ring artifact in cardiac CT has a unique pattern and has not been previously reported in real clinical practice. In this report, we will demonstrate the images and animations of a cardiac CT which is affected by a partial ring artifact due to a broken detector module. The different characteristics of ring artifacts on routine and cardiac CT, and the implications for clinical interpretation will also be described. In summary, when a partial ring artifact is noted incidentally on cardiac CT, we suggest interpreting the images by reviewing reconstructed images from different RR-intervals to avoid unnecessary repeated scans and additional radiation exposure.

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References

  1. Barrett JF, Keat N (2004) Artifacts in CT: recognition and avoidance. Radiographics 24(6):1679–1691

    Article  PubMed  Google Scholar 

  2. Fishman EK, Jeffrey RB Jr (2004) Basic principles of MDCT. In: Multidetector CT: principles, techniques and clinical applications. Lippincott Williams & Wilkins, Philadelphia, pp 3–12

    Google Scholar 

  3. McCollough CH, Schmidt B, Yu L et al (2008) Measurement of temporal resolution in dual source CT. Med Phys 35(2):764–768

    Article  PubMed  Google Scholar 

  4. Tsai IC, Lee WL, Tsao CR et al (2008) Comprehensive evaluation of ischemic heart disease using MDCT. AJR Am J Roentgenol 191(1):64–72

    Article  PubMed  Google Scholar 

  5. Seeram E (2001) Image quality. In: Computed tomography: physical principles, clinical applications, and quality control, 2nd edn. WB Saunders Company, Philadelphia, pp 173–195

  6. Mahesh M, Cody DD (2007) Physics of cardiac imaging with multiple-row detector CT. Radiographics 27(5):1495–1509

    Article  PubMed  Google Scholar 

  7. Achenbach S, Marwan M, Schepis T et al (2009) High-pitch spiral acquisition: a new scan mode for coronary CT angiography. J Cardiovasc Comput Tomogr 3(2):117–121

    Article  PubMed  Google Scholar 

Download references

Acknowledgments

This report was supported in part by Taichung Veterans General Hospital under grants TCVGH-995502C and 995504D0.

Conflicts of interest

None.

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Authors and Affiliations

  1. Department of Radiology, Taichung Veterans General Hospital, No. 160, Sec. 3, Taichung Harbor Road, Taichung, 407, Taiwan

    Hsin-Yu Tsai, Min-Chi Chen, I-Chen Tsai & Clayton Chi-Chang Chen

  2. Department of Radiological Technology and Graduate Institute of Radiological Science, Central Taiwan University of Science and Technology, Taichung, Taiwan

    Min-Chi Chen

  3. Institute of Clinical Medicine, National Yang Ming University, Taipei, Taiwan

    I-Chen Tsai

Authors
  1. Hsin-Yu Tsai
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  2. Min-Chi Chen
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  3. I-Chen Tsai
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  4. Clayton Chi-Chang Chen
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Corresponding author

Correspondence to I-Chen Tsai.

Additional information

H.-Y. Tsai, M.-C. Chen authors contributed equally to this article.

Electronic supplementary material

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10554_2011_9862_MOESM1_ESM.gif

Supplementary material 1 (GIF 849 kb) Animation 1: Motion cine in four-chamber view shows the partial ring artifact changes its location during the entire cardiac cycle

10554_2011_9862_MOESM2_ESM.gif

Supplementary material 2 (GIF 1515 kb) Animation 2: Motion cine in coronal view shows the artifacts change their location on z-axis during the cardiac cycle

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Tsai, HY., Chen, MC., Tsai, IC. et al. Partial ring artifact on cardiac CT: image presentation and clinical implication. Int J Cardiovasc Imaging 27, 689–693 (2011). https://doi.org/10.1007/s10554-011-9862-x

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  • DOI: https://doi.org/10.1007/s10554-011-9862-x

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