Three-dimensional Virtual Imaging to Improve the Accuracy of Standard CT-based Nephrometric Scores: a Prospective Multicentric Observational Study

NCT ID: NCT05729763

Last Updated: 2023-02-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-06-01

Study Completion Date

2022-09-30

Brief Summary

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STUDY DESIGN:

prospective multicentric observational

SAMPLE SIZE OF THE STUDY:

The estimated number of patients to enroll in the multicenter study is at least 270 patients (statistically calculated referring to the results of a monocentric analysis including 101 patients with the same design, already performed by the Coordinator Center).

NUMBER OF CENTERS INVOLVED:

Considering a total number of patients enrolled of at least 270, number of Centers to be involved: 5.

STUDY PROCEDURES:

3D virtual model rendering

* CT-scan images sent in DICOM format to MEDICS (Turin, Italy) after anonymization.
* Dedicated online platform available to upload the anonymized CT images, after registration.
* CT imaging processing by bioengineers and 3DVM building within 72 hours
* 3D-PDF download from the same online platform

Nephrometric score assessment

* All CT-scans and their 3DVMsevaluation in order to assess surgical complexity, as classified by the PADUA nephrometry score and its relative PADUA risk category.
* For each Center:

* assessment of the PADUA score on the basis of the CT-scans (2D-NS) by one urologist;
* assessment of the PADUA score on the basis of the 3DVMs (3D-NS) by another urologist.

Surgical intervention and pathological assessment

* Dedicated expert surgeon for each Center performing NSS to all patients with the same surgical technique.
* Dedicated uro-pathologist for each Center performing the histopathological evaluations of the specimens.

Detailed Description

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Conditions

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Kidney Neoplasms Carcinoma, Renal Cell

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients with localized renal tumor

Patients with localized renal tumor scheduled for minimally invasive partial nephrectomy in which 2D- and 3D-PADUA nephrometric score assessment was performed preoperatively

3D-PADUA nephrometric score

Intervention Type OTHER

Evaluation of the PADUA nephrometric score with 3D images

2D-PADUA nephrometric score

Intervention Type OTHER

Evaluation of the PADUA nephrometric score with 2D images

Interventions

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3D-PADUA nephrometric score

Evaluation of the PADUA nephrometric score with 3D images

Intervention Type OTHER

2D-PADUA nephrometric score

Evaluation of the PADUA nephrometric score with 2D images

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* four-phase (unenhanced, corticomedullary, nephrographic and urographic phases) contrast enhanced CT-scan

Exclusion Criteria

* evidence of anatomical abnormalities, like horse-shoe shaped or ectopic kidney.
* preoperative imaging inadequate to perform a 3DVM (such as those with a CT-scan with \>3 mm acquisition interval of the slices, or suboptimal difference of enhancement among the enhanced phases) or older than 3 months.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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San Luigi Gonzaga Hospital

OTHER

Sponsor Role lead

Responsible Party

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Francesco Porpiglia

Prof.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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San Luigi Gonzaga Hospital

Orbassano, TO, Italy

Site Status

Countries

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Italy

Other Identifiers

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8193 02 06 - 07 Jun 2019

Identifier Type: -

Identifier Source: org_study_id

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