Combined Supine and Standing Imaging for Varicocele: An Improved Diagnostic Approach
November 22nd, 2024
Varicocele relies heavily on angiographic diagnostic techniques for disease-related examination and assessment. In order to diagnose varicocele better, we combined supine and standing positions for varicocele imaging, and contrast-enhanced ultrasound is used for patients with inconspicuous reflux. This approach facilitates the early detection, diagnosis, and treatment of varicocele.
We intend to deliver an improved diagnostics operation for varicocele, which combines the use of supine and standing position for imaging. For patients with inconspicuous reflux, we propose contrast-enhanced ultrasound for better diagnostics. The recent research focuses on how to determine the surgical indications for varicocele by ultrasound and improve contrast-enhanced ultrasound. In the future, we will focus on how to use contrast-enhanced ultrasound and ultrasonic elastography to evaluate testicular spermatogenic function to advise the diagnostics.
[Narrator] To begin, arrange the sterilized instruments and other equipment required for the procedure. Configure the ultrasound settings in the ultrasound machine before initiating the scanning. Have the patient take a supine position for the examination. Using the probe perpendicular to the examinee's longitudinal axis, conduct a 2D ultrasound scan from the external inguinal ring to the upper segment of the epididymal head. Fix the probe's view on the segment where the varicose veins are most prominent, and click the ruler button to record the diameters of the veins on the right side. Similarly, examine the left-side spermatic veins. Next, instruct the patient to stand. Using the same method, measure the diameter of the spermatic veins on both sides. Press the Color Doppler ultrasound mode and turn on the movie mode. When the patient takes a Valsalva breath, select the red area on the screen and record the venous reflux time. Proceed with internal spermatic venography if the standing spermatic vein diameter is greater than 2.8 millimeters. Using an alcohol cotton ball, disinfect the central vein of the left elbow and use a five milliliter syringe to ballistically inject 2.4 milliliters of contrast agent followed by five milliliters of saline. Then, turn to contrast-enhanced ultrasound mode. Instruct the patient to take a Valsalva breath and record the images along with the duration of backflow. The positive detection rate for varicocele was 84.51%. Among the 2,789 testicular vein ultrasound examinations, unilateral left varicocele was present in 24.35% of the patients, unilateral right varicocele in 2.34%, and bilateral varicocele in 73.31%. Approximately 48.45% of patients did not show varicose veins on the right side of the spermatic cord in the supine ultrasound examination, but varicocele was detected when standing. Grade I degree varicocele was the most common, accounting for 56.34% of the total number of patients.
Overview
This study addresses the diagnostic challenges associated with varicocele through an innovative approach that utilizes both supine and standing positions during imaging. By incorporating contrast-enhanced ultrasound, the research aims to improve the detection rate and overall diagnosis of varicocele.
Key Study Components
Research Area
- Diagnosis of varicocele
- Use of ultrasound imaging
- Improvement of diagnostic techniques
Background
- Varicocele is often diagnosed using angiographic techniques.
- Conventional ultrasound may miss varicocele in certain positions.
- Understanding venous reflux is crucial for accurate diagnosis.
Methods Used
- Combination of supine and standing positions for imaging
- Contrast-enhanced ultrasound for patients with inconspicuous reflux
- Color Doppler ultrasound to assess venous reflux
Main Results
- Positive detection rate for varicocele was 84.51%.
- Different varicocele presentations were observed: unilateral left (24.35%), unilateral right (2.34%), and bilateral (73.31%).
- Supine examinations often missed varicose veins that were detected in standing patients.
Conclusions
- The study demonstrates the efficacy of using dual-position imaging in diagnosing varicocele.
- These findings have significant implications for improving patient diagnosis and treatment in urology.
Frequently Asked Questions
Executive Industry Relevance
Accurate detection of varicocele is critical for translational research and early-stage target validation in male reproductive health. The combined supine and standing imaging protocol enhances diagnostic sensitivity, reducing the risk of missed or underestimated disease incidence. This approach supports more reliable patient stratification and informs downstream R&D decisions in reproductive and vascular biology.
Strategic Applications in Biopharma R&D
Early Discovery & Target Validation
- Improved imaging protocols clarify disease prevalence and biological mechanisms.
- Enhanced detection reduces mechanistic ambiguity in reproductive health models.
- Reliable diagnosis supports functional target validation and portfolio triage.
Screening & Assay Development
- Dual-position imaging standardizes diagnostic criteria for clinical and preclinical studies.
- Quantitative vein diameter and reflux measurements enable reproducible assay outputs.
- Contrast-enhanced ultrasound increases screening sensitivity for subtle phenotypes.
Translational & Preclinical Research
- Accurate varicocele detection aligns preclinical models with human disease presentation.
- Quantitative imaging outputs facilitate biomarker development and translational continuity.
- Improved diagnostic precision informs risk-adjusted advancement decisions.
Pipeline & Workflow Integration
This dual-position imaging protocol integrates into the discovery-to-preclinical continuum, supporting both early hypothesis testing and translational model validation.
- Discovery Biology: Enables robust null hypothesis testing by isolating positional effects on venous reflux.
- Screening: Provides standardized, quantitative readouts for cross-study comparison.
- Analytics: Delivers reproducible measurements of vein diameter and reflux time for statistical analysis.
- Translational Research: Bridges clinical imaging findings with preclinical model development.
- Enterprise Reuse: Establishes a scalable diagnostic workflow adaptable across research sites.
Operational & Enterprise Impact
- Scientific Value: Increases predictive confidence and reduces diagnostic uncertainty in reproductive health studies.
- Operational Value: Standardizes imaging protocols for reproducibility and scalability.
- Strategic Value: Supports informed go/no-go decisions and reduces late-stage biological risk.
- Portfolio Impact: Enables risk-adjusted prioritization of reproductive health assets.
Implementation Considerations
- Requires expertise in ultrasound imaging and interpretation of positional effects.
- Needs access to advanced ultrasound systems with contrast and Doppler capabilities.
- Demands cross-team standardization of imaging and measurement protocols.
- Adaptation may be needed for different patient populations or model systems.
- Potential limitations include operator variability and patient compliance with positional changes.
