The Reproducibility Of Diffusion Weighted Magnetic Resonance Imaging For Neuroendocrine Tumor Liver Metastases

January 20, 2023 updated by: Memorial Sloan Kettering Cancer Center

Pilot Study To Assess The Reproducibility Of Diffusion Weighted Magnetic Resonance Imaging For Neuroendocrine Tumor Liver Metastases

Imaging with CT (Computed Tomography) or MRI (Magnetic Resonance Imaging) is normally used to see how tumors respond to treatment. If tumors shrink after therapy, doctors continue with the same treatment. On the other hand, growing tumors in a patient can bring about a change in therapy. Unfortunately, it often takes three to six months, or even longer before the investigators see tumors shrink or grow on scans. Doctors are looking for new imaging tools that can look at how tumors respond early on during treatment. This study will help us decide if such an MRI technology called DWI (Diffusion Weighted Imaging) can be used as a helpful imaging tool.

Study Overview

Study Type

Observational

Enrollment (Actual)

20

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

    • New York
      • New York, New York, United States, 10065
        • Memorial Sloan Kettering Cancer Center

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

Sampling Method

Non-Probability Sample

Study Population

Potential research patients will be identified by doctors from the Gastrointestinal Oncology Service.

Description

Inclusion Criteria:

  • Histopathologic evidence of well differentiated neuroendocrine tumor of gastroenteropancreatic origin
  • Evidence of metastatic disease of at least 2.0 cm in the liver by MRI or CT imaging.
  • Patient ≥18 years of age on the day of signing informed consent.

Exclusion Criteria:

  • Any contraindication to MRI based on departmental MR questionnaire
  • Inability to cooperate for an MR exam
  • Patient has a history of a second active malignancy with evidence of metastases. Patients with a history of resected prior malignancy or one that would not interfere with the MRI results is allowed.
  • Patient has known psychiatric or substance abuse disorders that would, in the opinion of the treating investigator, interfere with cooperation with the requirements of the trial.

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
MRI
Patients will be consented for a second MRI without additional intravenous contrast, referred to from now on as 'research MRI', to be performed later on the same day as their clinical liver MR examination, on one of two 3.0 Tesla MR 750 GE scanners at the Breast and Imaging Center. The research MRI will consist only of the localizer and diffusion weighted imaging (DWI) sequences, with acquisition parameters identical to our clinical MRI. The reproducibility of DWI is best assessed in separate MR imaging sessions, although the examinations can be performed the same day.

Each patient will undergo clinical and research MRI examinations. Before any MRI examination, the patient will answer a standard radiology MR department questionnaire form, with specific questions addressing contra-indications to MRI. The questionnaire form will be reviewed by radiology personnel as per standard practice.

During the research MRI, the patient will be monitored visually and communication will be maintained between the patient and the MR technologists via a speaker system. At the termination of the study, the patient will be evaluated by the MR department radiology personnel as done routinely. Two breath hold DWI sequences will be performed for each patient. Since this is a reproducibility study, identical scan parameters will be used for the clinical and research MRI. The multiple b value DWI will be performed using the enhanced DW sequence that have been recently made available on our 3.0 Tesla MR 750 scanners at the Breast and Imaging Center.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
reproducibility of diffusion weighted imaging for neuroendocrine liver metastases.
Time Frame: 2 years
The investigators will calculate an ADC value for each metastasis that was chosen through consensus by the two participating radiologists. ADC is a voxel-level measurement so summary measures will be employed in order to get a single measurement for the ROI of each metastasis under study. For both the clinical and research MRI, the investigators will take the voxel-level data and calculate the mean, median, and minimum ADC within each ROI.
2 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
evaluate the repeatability of perfusion insensitive diffusion coefficients ADC high of liver metastases
Time Frame: 2 years
A similar application of the CCC will be employed to assess both intra-observer and interobserver variability separately for ADC high as in the primary aim. The repeatability and reproducibility of the ADC high will then be compared to the most repeatable and reproducible ADC measures identified in Aim 1 by ranking the CCC values and selecting the measure with the highest value.
2 years
evaluate the reproducibility perfusion insensitive diffusion coefficients (ADC high) of liver metastases
Time Frame: 2 years
A similar application of the CCC will be employed to assess both intra-observer and interobserver variability separately for ADC high as in the primary aim. The repeatability and reproducibility of the ADC high will then be compared to the most repeatable and reproducible ADC measures identified in Aim 1 by ranking the CCC values and selecting the measure with the highest value.
2 years

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Richard Kinh Gian Do, MD,PhD, Memorial Sloan Kettering Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the 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)

August 23, 2011

Primary Completion (Actual)

January 19, 2023

Study Completion (Actual)

January 19, 2023

Study Registration Dates

First Submitted

August 24, 2011

First Submitted That Met QC Criteria

August 25, 2011

First Posted (Estimate)

August 26, 2011

Study Record Updates

Last Update Posted (Actual)

January 23, 2023

Last Update Submitted That Met QC Criteria

January 20, 2023

Last Verified

January 1, 2023

More Information

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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