Abstract
Purpose
To explore the feasibility of a 5G-based telerobotic ultrasound (US) system for providing qualified abdominal US services on a rural island.
Methods
This prospective study involved two medical centers (the tele-radiologist site’s hospital and the patient site’s hospital) separated by 72 km. Patients underwent 5G-based telerobotic US by tele-radiologists and conventional US by on-site radiologists from September 2020 to March 2021. The clinical feasibility and diagnostic performance of the 5G-based telerobotic abdominal US examination were assessed based on safety, duration, image quality, diagnostic findings, and questionnaires.
Results
A total of 401 patients (217 women and 184 men; mean age, 54.96 ± 15.43 years) were enrolled. A total of 90.1% of patients indicated no discomfort with the telerobotic US examination. For the examination duration, telerobotic US took longer than conventional US (12.54 ± 3.20 min vs. 7.23 ± 2.10 min, p = 0.001). For image quality scores, the results of the two methods were similar (4.54 ± 0.63 vs. 4.57 ± 0.61, p = 0.112). No significant differences were found between the two methods in measurements for the aorta, portal vein, gallbladder, kidney (longitudinal diameter), prostate, and uterus; however, telerobotic US underestimated the transverse diameter of the kidney (p < 0.05). A total of 504 positive results, including 31 different diseases, were detected. Among them, 455 cases were identified by the two methods; 17 cases were identified by telerobotic US only; and 32 cases were identified by conventional US only. There was good consistency in the diagnosis of 29 types of disease between the two methods (κ = 0.773–1.000). Furthermore, more than 90% of patients accepted the telerobotic US examination and agreed to pay additional fees in future.
Conclusion
The 5G-based telerobotic US system can expand access to abdominal US services for patients in rural areas, thereby reducing health care disparities.
Graphical abstract
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Abbreviations
- US:
-
Ultrasound
- 5G:
-
Fifth generation
- DOF:
-
Degree of freedom
- BMI:
-
Body mass index
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Acknowledgements
We would like to acknowledge the effort and support of all authors in the study.
Funding
This work was supported in part by the National Natural Science Foundation of China (Grant 82202174), the Science and Technology Commission of Shanghai Municipality (Grants 18441905500 and 19DZ2251100), Shanghai Municipal Health Commission (Grants 2019LJ21 and SHSLCZDZK03502), Shanghai Science and Technology Innovation Action Plan (21Y11911200), and Fundamental Research Funds for the Central Universities (ZD-11-202151), Scientific Research and Development Fund of Zhongshan Hospital of Fudan University (Grant 2022ZSQD07).
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The scientific guarantors of this publication are Hui-Xiong Xu and Chong-Ke Zhao.
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This prospective trial was supported by the ethics board of the institution. All patients gave informed consent.
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This prospective trial was supported by the ethics board of the institutional (Ethics No. SHSY-IEC-5.0/22K149/P01).
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Zhang, YQ., Sun, LP., He, T. et al. A 5G-based telerobotic ultrasound system provides qualified abdominal ultrasound services for patients on a rural island: a prospective and comparative study of 401 patients. Abdom Radiol 49, 942–957 (2024). https://doi.org/10.1007/s00261-023-04123-5
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DOI: https://doi.org/10.1007/s00261-023-04123-5