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CT gastrography “wall-carving technique” of gastric cancer: impact of contrast enhancement based on layer depth

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Japanese Journal of Radiology Aims and scope Submit manuscript

Abstract

Purpose

Wall-carving technique (WC) is a special volume rendering technique of three-dimensional CT gastrography that can illustrate the enhancement of gastric wall at an arbitrary depth. We conducted the present study to evaluate the impact of contrast enhancement based on layer depth on WC of gastric cancer and to correlate them with pathological findings.

Methods

The subjects of this retrospective study consisted of 36 patients with advanced gastric cancer (22 men, 14 women; age range, 39–90 years; median, 67 years) who underwent contrast-enhanced CT before surgery. WC images of arterial phase were divided into first and second layer. Two radiologists in consensus evaluated the contrast enhancement of WC images for each layer and correlated with pathologic factors.

Results

Twenty-six (72%) of the gastric cancers showed a well-enhanced lesion in the first layer at the arterial phase on WC images, and 18 (50%) showed a well-enhanced lesion in the second layer. The study of second layers showed that the well-enhanced group had significantly more cases of differentiated type histology and intermediate stroma than the normally to poorly enhanced group (p = 0.008 and 0.0026).

Conclusion

The contrast enhancement on WC of gastric cancer showed a significant relationship with pathological factors based on layer depth.

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Authors and Affiliations

  1. Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan

    Daisuke Tsurumaru, Yusuke Nishimuta, Toshio Muraki, Akihiro Nishie & Hiroshi Honda

  2. Department of Advanced Imaging and Interventional Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan

    Yoshiki Asayama

  3. Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan

    Eiji Oki

Authors
  1. Daisuke Tsurumaru
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  2. Yusuke Nishimuta
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  3. Toshio Muraki
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  4. Yoshiki Asayama
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  5. Akihiro Nishie
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  6. Eiji Oki
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  7. Hiroshi Honda
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Corresponding author

Correspondence to Daisuke Tsurumaru.

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The authors declare no conflict of interest associated with this manuscript other than that grant.

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This study was approved by the institutional review board of our institution.

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Tsurumaru, D., Nishimuta, Y., Muraki, T. et al. CT gastrography “wall-carving technique” of gastric cancer: impact of contrast enhancement based on layer depth. Jpn J Radiol 37, 597–604 (2019). https://doi.org/10.1007/s11604-019-00845-z

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  • DOI: https://doi.org/10.1007/s11604-019-00845-z

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