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‘Hepato-diaphragmatic fat interposition’ and ‘increased right hemi-diaphragmatic thickness’: new imaging signs for early diagnosis of hepatic cirrhosis on routine CT abdomen

  • Hepatobiliary
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Abstract

Background

Cirrhosis of liver is often a silent disease and need early diagnosis for effective treatment strategy.

Objectives

The present article aims to describe new imaging signs for early diagnosis of cirrhosis on routine CT. These are ‘hepato-diaphragmatic fat interposition’ (HDFI) and ‘increased right hemi-diaphragmatic thickness’ (increased r-DT sign).

Materials and methods

This was a retrospective study based on the presence or absence of cirrhosis of liver (n = 100). ‘HDFI sign’ was labeled as positive if F is more than 50% of D; where F is the medio-lateral extent of the intra-abdominal fat along the postero-medial margin of liver and D is the distance from the lateral vertebral margin to the medial margin of the outer-most rib in the same axial image. Increased ‘r-DT sign’ is labeled when the dimension on right side exceeds left side by at least 0.2 cm. Pearson χ2 was performed to calculate the p value. A p value of < 0.05 was considered to indicate a significant difference.

Results

There was a significant difference between cirrhotic and normal group, The sensitivity, specificity, positive predictive value and the negative predictive value of HDFI sign was found to be 94%, 62%, 71.21% and 91.17%, while that of increased r-DT sign was found to be 96%,52%, 66.66% and 92.85%. The area under the ROC curve for the HDFI sign was found to be 0.78 as compared to 0.74 for the increased r-DT sign.

Conclusion

Both these new signs should be used as additional imaging signs for early diagnosis of cirrhosis.

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Authors and Affiliations

  1. Indraprastha Apollo Hospital, New Delhi, 110076, India

    Nitin P. Ghonge

  2. Max Superspeciality Hospital, Saket, New Delhi, India

    Amit Sahu

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  1. Nitin P. Ghonge
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  2. Amit Sahu
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Correspondence to Nitin P. Ghonge.

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The authors declare that they have no conflict of interest.

Ethical approval

This study was approved by the Ethical Committee of Indraprastha Apollo Hospitals, Sarita Vihar; New Delhi-76.

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Ghonge, N.P., Sahu, A. ‘Hepato-diaphragmatic fat interposition’ and ‘increased right hemi-diaphragmatic thickness’: new imaging signs for early diagnosis of hepatic cirrhosis on routine CT abdomen. Abdom Radiol 45, 153–160 (2020). https://doi.org/10.1007/s00261-019-02230-w

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  • DOI: https://doi.org/10.1007/s00261-019-02230-w

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