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Comparing Sonazoid contrast-enhanced ultrasound to contrast-enhanced CT and MRI for differentially diagnosing renal lesions: a prospective multicenter study

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A Correction to this article was published on 13 June 2024

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Abstract

Purpose

To evaluate the diagnostic performance of contrast-enhanced (CE) ultrasound using Sonazoid (SNZ–CEUS) by comparing with contrast-enhanced computed tomography (CE–CT) and contrast-enhanced magnetic resonance imaging (CE–MRI) for differentiating benign and malignant renal masses.

Materials and methods

306 consecutive patients (from 7 centers) with renal masses (40 benign tumors, 266 malignant tumors) diagnosed by both SNZ–CEUS, CE–CT or CE–MRI were enrolled between September 2020 and February 2021. The examinations were performed within 7 days, but the sequence was not fixed. Histologic results were available for 301 of 306 (98.37%) lesions and 5 lesions were considered benign after at least 2 year follow-up without change in size and image characteristics. The diagnostic performances were evaluated by sensitivity, specificity, positive predictive value, negative predictive value, and compared by McNemar’s test.

Results

In the head-to-head comparison, SNZ–CEUS and CE–MRI had comparable sensitivity (95.60 vs. 94.51%, P = 0.997), specificity (65.22 vs. 73.91%, P = 0.752), positive predictive value (91.58 vs. 93.48%) and negative predictive value (78.95 vs. 77.27%); SNZ–CEUS and CE–CT showed similar sensitivity (97.31 vs. 96.24%, P = 0.724); however, SNZ–CEUS had relatively lower than specificity than CE–CT (59.09 vs. 68.18%, P = 0.683). For nodules > 4 cm, CE–MRI demonstrated higher specificity than SNZ–CEUS (90.91 vs. 72.73%, P = 0.617) without compromise the sensitivity.

Conclusions

SNZ–CEUS, CE–CT, and CE–MRI demonstrate desirable and comparable sensitivity for the differentiation of renal mass. However, the specificity of all three imaging modalities is not satisfactory. SNZ–CEUS may be a suitable alternative modality for patients with renal dysfunction and those allergic to gadolinium or iodine-based agents.

Key Points

  • This prospective multicenter study demonstrated that the diagnostic performance of SNZ–CEUS was comparable to CE–CT and CE–MRI.

  • The three imaging modalities displayed desirable sensitivity, while the specificity needs to be further improved.

  • CE–MRI may have better specificity than SNZ–CEUS for differentiating renal masses bigger than 4 cm

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Data availability

The article does not contain applicable data availability statements.

Change history

Abbreviations

ALMs:

Angioleiomyomas

BMI:

Body mass index

ccRCC:

Clear-cell RCC

CE:

Contrast-enhanced

CE–CT:

Contrast-enhanced computed tomography

CE–MRI:

Contrast-enhanced magnetic resonance imaging

CEUS:

Contrast-enhanced ultrasound

EAU:

European Association of Urology

NPV:

Negative predictive value

PPV:

Positive predictive value

RCC:

Renal cell carcinoma

SNZ–CEUS:

Contrast-enhanced ultrasound using Sonazoid

TFE3:

Transcription factor e3

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Funding

This work was supported by Grants 81871374 and 82171941, 91859201 and 82030047 from the National Scientific Foundation Committee of China. The funders had no role in data collection and analysis, decision to publish, or preparation of the manuscript.

Author information

Authors and Affiliations

Authors

Contributions

Concept and design: Ping Liang, Zhi-gang Cheng. Experiments and procedures: All authors. Writing of article: Qin-xian Zhao, Yang Bai. Statistical analysis: Qin-xian Zhao, Yang Bai, Ming-jing Mei; Case collection: Qin-xian Zhao, Chong Wu, Hai-xiang Zhang, Mei-mei Zhu, Xiang-ru Dong, Hua Liang, Si-jie Yuan, Yue Song. Thanks for support of GE healthcare pharmaceutical diagnostics medical affairs for contributing to the data analysis.

Corresponding authors

Correspondence to Zhi-gang Cheng or Ping Liang.

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Conflict of interest

The authors have no conflicts of interest to this work. We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.

Ethical approval

The study was approved and supervised by the institutional review boards of the seven participating institutions.

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The original online version of this article was revised due to incorrect first author name. Now, it has been corrected from Qin-xin Zhao to Qin-xian Zhao.

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Zhao, Qx., Wu, C., Tan, S. et al. Comparing Sonazoid contrast-enhanced ultrasound to contrast-enhanced CT and MRI for differentially diagnosing renal lesions: a prospective multicenter study. World J Urol 42, 302 (2024). https://doi.org/10.1007/s00345-024-04885-7

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  • DOI: https://doi.org/10.1007/s00345-024-04885-7

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