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CT Perfusion in the Prognostication of Cerebral High Grade Glioma

NCT01923922 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 48

Last updated 2024-08-21

No results posted yet for this study

Summary

High grade cerebral glioma is the most common primary brain tumor in adults and accounts for about 2.5% of all cancer deaths. Brain tumor affects approximately 2300 individuals per year in Canada. Noninvasive accurate and timely diagnosis is imperative.

High grade glioma is an aggressive neoplasm with median survival of 12 months, irrespective of any treatment. The prognosis of these patients can only be decided based on pathology after biopsy or surgery. Conventional imaging techniques, such as routine magnetic resonance imaging(MRI), do not accurately predict the grade of malignancy of cerebral gliomas. Computed tomography(CT) perfusion allows us to study the blood supply to the tumor at the level of capillaries. This information permits determination of aggressiveness of cerebral gliomas at the time of diagnosis.

In a preliminary study of 20 patients with high grade cerebral gliomas, we have shown that CT perfusion can predict survival at the time of diagnosis irrespective of the pathological grade and the treatment received. In the present study, we would like to extend our preliminary findings in larger group of patients to ensure that this technique is indeed robust. If our hypothesis was supported by our study, we will be able to subselect patients based on initial imaging for more aggressive treatment. In patients with shorter survival, the perfusion parameters may help in identifying new therapeutic targets (e.g., anti-angiogenic agents) that may help in the treatment of these patients.

Conditions

Interventions

RADIATION

CT Perfusion

The CT perfusion scan will be performed on a multi-detector CT scanner at the time of routine preoperative neuronavigation imaging. A non-contrast CT head scan will be acquired to localize the tumour. Four 5 mm thick slices will be selected at the level of the tumour. Multiple images will be acquired at each levels starting 5 sec after the injection of 50 cc of non-ionic iodinated contrast media at a rate of 4 cc/sec. The acquisition parameters will be 80 kVp and 100 mA. The images will be acquired every second for a total of 110 sec. The post- processing will be performed and parameters will be calculated using regions of interest in the areas of tumour showing the highest perfusion values. Another region of interest will be placed in the contralateral normal looking white matter.

Sponsors & Collaborators

  • Nova Scotia Health Authority

    lead OTHER

Principal Investigators

  • Jai Shankar · Capital District Health Auhtority

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
15 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-09-09
Primary Completion
2019-10-22
Completion
2019-10-22

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 NCT01923922 on ClinicalTrials.gov