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MR Perfusion Methods in Patients With Suspected Recurrent High Grade Gliomas

NCT02919865 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2021-10-08

No results posted yet for this study

Summary

Radiation therapy is an important adjunct in the treatment of patients with glioma, although a common side effect is radiation-induced injury of brain parenchyma. Unfortunately, conventional MRI is not accurate in differentiating radiation-induced brain injury from recurrent tumour, both of which may demonstrate progressive contrast enhancement. Recent studies have suggested that perfusion MRI could improve this differentiation. Perfusion MRI can be performed with an injection of exogenous contrast using dynamic contrast enhancement (DCE) or dynamic susceptibility contrast enhancement (DSC). Perfusion MRI can also be performed without contrast injection using arterial spin labeling (ASL) or intravoxel incoherent motion (IVIM). DCE-MRI relies on accurate measurement of T1 values in order to convert the MRI signal intensity to contrast concentration. Dynamic susceptibility-weighted contrast enhancement (DSC) perfusion is the most common technique used in clinical practice but measurement of tumor relative cerebral blood volume (rCBV) can be biased by extravascular contrast leakage and susceptibility-weighted artifacts. The purpose of this study is to evaluate the accuracy of perfusion MR imaging using non-contrast and contrast-based techniques in differentiating recurrent tumour from radiation-induced brain injury in patients with known high grade glioma. The investigators will compare the accuracy of IVIM, ASL, DCE and DSC techniques. A secondary goal of the study is to compare two new different T1 mapping methods used for DCE-MRI.

Conditions

Interventions

DEVICE

MR perfusion imaging

MR perfusion imaging will be performed in addition to the routine neuronavigational sequence obtained from re-operative/therapy planning. Following MR examination, patient may undergo a surgical biopsy or excision as determined clinically by the neurosurgeon. All patients, including those who do not go to surgery, will undergo clinical follow-up and imaging follow-up with perfusion imaging. This will allow for assessment of lesion progression over time, yielding valuable diagnostic information in differentiating radiation necrosis from tumour recurrence, particularly in those patients who do not undergo surgery.

Sponsors & Collaborators

  • Ottawa Hospital Research Institute

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-12-13
Primary Completion
2021-08-03
Completion
2021-08-03

Countries

  • Canada

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02919865 on ClinicalTrials.gov