Evaluation of the Application Effect of a Surgical Navigation System in HoLEP Surgery

November 19, 2025 updated by: Qing Yuan, Chinese PLA General Hospital

3D imaging-assisted surgical navigation system was established using the following specific procedures: 1) Prostate MRI Acquisition and 3D Reconstruction: patient prostate MRI images are acquired, and professional engineers complete 3D reconstruction; 2) Data Import to Diagnostic Ultrasound System: Reconstructed prostate MRI images and P-3DRI (Prostate 3D Reconstruction Image) data are imported into the Diagnostic Ultrasound system; 3) Transrectal Ultrasound Probe Placement: The transrectal ultrasound probe is secured to a dedicated holder. The probe is inserted into the patient's rectum to locate the prostate. After manual adjustment to optimize imaging, the holder is fixed in position; 4) Initial Position Registration: The Diagnostic Ultrasound system integrates prostate MRI, P-3DRI, and real-time ultrasound images. Spatial correspondence between P-3DRI and the actual prostate position is established using real-time ultrasound; 5) Cystoscope-Electromagnetic Navigation Assembly: A self-designed electromagnetic navigation connector links the electromagnetic sensor to the cystoscope. The ultrasound probe is simultaneously equipped with an electromagnetic sensor; 6) Real-time Spatial Tracking and Fusion: The electromagnetic navigation module tracks spatial positions of surgical instruments and the ultrasound probe. These positions are fused with real-time ultrasound coordinates.

Through the above steps, the relative position between surgical instruments and the prostate is displayed in real time, achieving intraoperative navigation. All procedures were performed by the same Associate Chief Physician at our medical center. Based on the use of the 3D imaging-assisted surgical navigation system during surgery, patients were divided into an Observation group and a Control group.

Study Overview

Study Type

Interventional

Enrollment (Actual)

150

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Haidian
      • Beijing, Haidian, China, 100039
        • ChinaPLAGH

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 1) Clinically diagnosed BPH patients with LUTS; 2) Voluntarily participated in the clinical trial and provided written informed consent; 3) Met the surgical intervention indications outlined in the 2019 'Chinese Guidelines for Diagnosis and Treatment of Urological Diseases'; 4) Completed preoperative BPH evaluations, including International Prostate Symptom Score (IPSS) and Quality of Life (QoL) assessment.

Exclusion Criteria:

  • 1) Refusal to participate in the clinical trial; 2) Presence of severe uncontrolled medical conditions or psychiatric disorders; 3) Cognitive impairment impeding normal communication.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: use of the 3D imaging-assisted surgical navigation system during surgery
Based on the use of the 3D imaging-assisted surgical navigation system during surgery, patients were divided into an Observation group and a Control group
Based on the use of the 3D imaging-assisted surgical navigation system during surgery, patients were divided into an Observation group and a Control group.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
postoperative complications
Time Frame: month 1;month 3;
Urinary Incontinence (Defined as an International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) score ≥ 1), Urethral Stricture (Defined as recurrence of dysuria or narrowed urine stream postoperatively, confirmed by cystoscopy)
month 1;month 3;

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 1, 2024

Primary Completion (Actual)

September 30, 2024

Study Completion (Actual)

December 31, 2024

Study Registration Dates

First Submitted

November 19, 2025

First Submitted That Met QC Criteria

November 19, 2025

First Posted (Actual)

November 26, 2025

Study Record Updates

Last Update Posted (Actual)

November 26, 2025

Last Update Submitted That Met QC Criteria

November 19, 2025

Last Verified

October 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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