Spectrum Analysis in Ex-vivo Human Lungs

May 1, 2018 updated by: University Health Network, Toronto

Spectrum Analysis of Endobronchial Ultrasound Radiofrequency of Lung Tumors in Ex-vivo Human Lungs

This study will analyze spectral features of the radiofrequency of lung tumors in ex-vivo human lungs. The resected specimens will be evaluated using the spectrum analysis to determine the localization rate of the targets. Ultrasound measurement and images will be used for correlation of TS mode image findings with pathology by using HE and IHC slides of lung tumor and lymph node.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

20

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

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 2C4
        • Toronto General Hospital

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Any patients scheduled for lobectomy of anatomical segmental resection for malignant lung tumors.
  • 18 years of age or older

Exclusion Criteria:

  • Any patients with inability to give informed consent.

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

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Ex-Vivo
Device: Spectrum Analysis
The ultrasound probe will be placed on the lung surface in several different directions to obtain the cross section with maximum diameter. Three spectral parameters including midband-fit (dB), intercept (dB), and slope (dB/MHz) will be calculated and compared between the tumor and the lung.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To analyze the relationship of three spectral features of the radiofrequency of lung tumors in ex-vivo human lungs.
Time Frame: Within an hour after resection.
From obtained ultrasound images, a linear regression line is quantified, and three ultrasonic spectral parameters including Midband-fit, Intercept, and Slope are calculated.
Within an hour after resection.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To find the correlation of TS mode image findings with pathology by using lung tumor and lymph node samples.
Time Frame: Within an hour after resection
After evaluation, the actual tumor size and histological diagnosis will be determined. Differences between US image and pathological morphology will be determined by using HE and Immunohistochemistry (IHC) slides of lung tumor, the investigators will evaluate comparison of nucleus size in each tissue and the spectral parameters in each region of interest.
Within an hour after resection
To clarify the feasibility of using the conventional EBUS scope to visualize solitary pulmonary nodules in an ex-vivo human lung.
Time Frame: Within an hour after resection
The bronchial stump of the specimen will be opened and a small sized endotracheal tube will be inserted to inflate and deflate the lung. After inflation of the lung, visualization of the tumor will be evaluated to see the difference in ultrasound images between deflated and inflated lung.
Within an hour after resection

Collaborators and Investigators

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

Sponsor

University Health Network, Toronto

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)

July 12, 2017

Primary Completion (Actual)

May 1, 2018

Study Completion (Actual)

May 1, 2018

Study Registration Dates

First Submitted

November 13, 2017

First Submitted That Met QC Criteria

November 22, 2017

First Posted (Actual)

November 29, 2017

Study Record Updates

Last Update Posted (Actual)

May 4, 2018

Last Update Submitted That Met QC Criteria

May 1, 2018

Last Verified

May 1, 2018

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 16-6177

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Plan on sharing data at the time of manuscript publication.

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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