NCT04645472

Brief Summary

Kidney stone is a common urological disease. Percutaneous nephrolithotomy (PCNL) is an important method for the treatment of kidney stones. The accuracy of puncture positioning affects the PCNL stone free rate and intraoperative/postoperative complications. Currently, PCNL puncture positioning methods are mainly X-ray-guided or ultrasound-guided. The main disadvantage of X-ray is the lack of soft tissue imaging, and the problem of low puncture accuracy. Although ultrasound is a commonly used real-time imaging tool, the image is not intuitive enough, and the puncture path is deviated from actual requirements . In order to improve the accuracy of PCNL puncture, this study intends to import CT images of both kidneys into a novel ultrasound machine through an image fusion system to achieve CT-ultrasound image fusion, and to simulate the puncture route to guide the PCNL puncture process. The study is mainly divided into two parts: (1) For patients with kidney stones who are planning to undergo PCNL, perform a preoperative simulated CT-ultrasound fusion examination to further clarify the condition of the kidney stones and simulate and optimize the puncture route; (2) Apply CT- Ultrasound fusion precise positioning to guide the intraoperative PCNL puncture process. On the basis of traditional ultrasound images, the CT-ultrasound fusion image display is added to provide the optimal puncture route to explore the effectiveness and safety of CT-ultrasound fusion precise positioning in PCNL puncture.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
70

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 20, 2020

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

November 25, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 27, 2020

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2021

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2021

Completed
Last Updated

November 27, 2020

Status Verified

November 1, 2020

Enrollment Period

11 months

First QC Date

November 25, 2020

Last Update Submit

November 25, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Stone free rate

    Stone free rate in a week

    in a week

Study Arms (1)

CT-Ultrasound group

Device: CT-Ultrasound

Interventions

For patients with kidney stones who are planning to undergo PCNL, perform a preoperative simulated CT-ultrasound fusion examination to further clarify the condition of the kidney stones and simulate and optimize the puncture route. Apply CT- Ultrasound fusion precise positioning to guide the intraoperative PCNL puncture process.

CT-Ultrasound group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

We plan to enroll 50 patients to explore the effectiveness and safety of CT-ultrasound fusion in guiding PCNL puncture positioning.

You may qualify if:

  • (1) Age ≥18 years old, gender is not limited, and can tolerate surgery; (2) Kidney stone patients who intend to undergo PCNL surgery; (3) Have kidney CT data; (4) Volunteer to participate and sign informed consent.

You may not qualify if:

  • (1) Uncontrollable systemic hemorrhagic disease; (2) Severe spinal deformity, severe hip deformity, and difficult lithotomy position; (3) Uncontrolled urinary tract infection; (4) Cavity caused by any urinary system anatomy Internal surgery cannot be performed; (5) Pregnant women, women who plan to become pregnant within 3 months, and lactating women; (6) Patients with severe heart, lung and brain diseases that cannot tolerate surgery; (7) The investigator judges that the patient is not suitable for participating in this study , Including (but not limited to): known to be carrying human immunodeficiency virus or suffering from AIDS; suffering from mental illness; infectious diseases, etc.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Zhenyu Wu

Guangzhou, Guangdong, 510000, China

RECRUITING

Related Publications (5)

  • Rizvi SAH, Hussain M, Askari SH, Hashmi A, Lal M, Zafar MN. Surgical outcomes of percutaneous nephrolithotomy in 3402 patients and results of stone analysis in 1559 patients. BJU Int. 2017 Nov;120(5):702-709. doi: 10.1111/bju.13848. Epub 2017 Apr 17.

    PMID: 28303631BACKGROUND
  • Kalogeropoulou C, Kallidonis P, Liatsikos EN. Imaging in percutaneous nephrolithotomy. J Endourol. 2009 Oct;23(10):1571-7. doi: 10.1089/end.2009.1521.

    PMID: 19630501BACKGROUND
  • Ghani KR, Andonian S, Bultitude M, Desai M, Giusti G, Okhunov Z, Preminger GM, de la Rosette J. Percutaneous Nephrolithotomy: Update, Trends, and Future Directions. Eur Urol. 2016 Aug;70(2):382-96. doi: 10.1016/j.eururo.2016.01.047. Epub 2016 Feb 11.

    PMID: 26876328BACKGROUND
  • Xu ZF, Xie XY, Kuang M, Liu GJ, Chen LD, Zheng YL, Lu MD. Percutaneous radiofrequency ablation of malignant liver tumors with ultrasound and CT fusion imaging guidance. J Clin Ultrasound. 2014 Jul-Aug;42(6):321-30. doi: 10.1002/jcu.22141. Epub 2014 Feb 25.

    PMID: 24615771BACKGROUND
  • Da Rosa MR, Milot L, Sugar L, Vesprini D, Chung H, Loblaw A, Pond GR, Klotz L, Haider MA. A prospective comparison of MRI-US fused targeted biopsy versus systematic ultrasound-guided biopsy for detecting clinically significant prostate cancer in patients on active surveillance. J Magn Reson Imaging. 2015 Jan;41(1):220-5. doi: 10.1002/jmri.24710. Epub 2014 Jul 21.

    PMID: 25044935BACKGROUND

MeSH Terms

Conditions

Kidney Calculi

Condition Hierarchy (Ancestors)

NephrolithiasisKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisUrinary CalculiMale Urogenital DiseasesCalculiPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Medical Doctor

Study Record Dates

First Submitted

November 25, 2020

First Posted

November 27, 2020

Study Start

April 20, 2020

Primary Completion

March 1, 2021

Study Completion

April 1, 2021

Last Updated

November 27, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will not share

Locations