Related Experiment Video
Updated: Jul 2, 2026
Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology
Published on: October 20, 2010
A Stepwise Diagnostic Strategy Combining a Simplified US-Based Node-RADS with Postvascular Phase Perfluorobutane-CEUS
Naxiang Liu1, Liqin Lan2, Wenrong Lin2
1Department of Ultrasonography, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou University Affiliated Provincial Hospital, Fuzhou, China; Department of Ultrasonography, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China.
A new ultrasound (US) system for cervical lymph nodes (CLN) helps classify them. Adding contrast-enhanced ultrasound (CEUS) reduces unnecessary biopsies for indeterminate CLN cases.
Area of Science:
- Radiology
- Oncology
- Medical Imaging
Background:
- Cervical lymph node (CLN) assessment often involves indeterminate findings on conventional ultrasound (US).
- The need for accurate preoperative decision-making in CLN evaluation is critical.
- Reducing unnecessary biopsies while maintaining diagnostic accuracy is a key clinical challenge.
Purpose of the Study:
- To develop and validate a US-based Node-reporting and data systems (US-Node-RADS) for CLNs.
- To assess the utility of postvascular phase contrast-enhanced ultrasound (CEUS) in reclassifying indeterminate US-Node-RADS 3 CLNs.
- To determine if CEUS can reduce the rate of unnecessary CLN biopsies.
Main Methods:
- A 5-point US-Node-RADS was developed and validated across multiple centers.
- Patients with indeterminate Node-RADS 3 CLNs underwent perfluorobutane-contrast-enhanced ultrasound (PVP-CEUS).
- Histopathology and follow-up served as the reference standard for diagnostic performance evaluation.
Main Results:
- The developed US-Node-RADS demonstrated moderate diagnostic performance, with 40.2% of nodes categorized as indeterminate (Node-RADS 3).
- PVP-CEUS successfully reclassified indeterminate nodes, reducing unnecessary biopsies by 14.7% to 40.0%.
- Malignancy identification rates increased to 79.3%-100% after CEUS reclassification, surpassing baseline rates for Node-RADS 3.
Conclusions:
- PVP-CEUS effectively resolves diagnostic ambiguity for indeterminate CLNs.
- This two-step strategy significantly reduces unnecessary biopsies while preserving high sensitivity for malignancy detection.
- The combined US and CEUS approach offers a standardized pathway for preoperative decision-making in CLN evaluation.
