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Clinical Trial Summary

Adult patients referred to radiotherapy treatment of primary or secondary malignant involvement of the lung parenchyma, who are not meeting the exclusion criteria, will be introduced to the study and suggested to participate in it by the radiotherapist, Dr Viacheslav Soyfer, M.D. from the Institute of Radiotherapy Tel Aviv (Sourasky) Medical Center.

They will sign an informed consent and the study will be conducted based on the agreement of the institutional ethical committee, prior to perfusion study.

Each patient will be evaluated three times: prior to treatment, a baseline evaluation mid-follow-up period 6 weeks post initiation of radiotherapy and a delayed follow up 6 months post treatment. Each SPECT/ Low dose CT assessment will take place within two weeks of the clinical and PFT assessment.

The study will take place within a duration of two years, from recruiting the participating patients to the completion of the study protocol by the last recruited patient. For the individual patient, the duration of participation is six months.

Perfusion SPECT/ Low dose CT studies with a non-diagnostic low dose chest CT will be performed after the I.V. injection of 4 mCi 99m-Tc-MAA. SPECT/ Low dose CT scan will be acquired immediately post injection on a GE OPTIMA NM/CT 640 camera. In order to obtain a better definition of the irradiated fields, we will co-register the SPECT/ Low dose CT with high-resolution CT provided from the Institute of Radiotherapy. In this procedure, the low dose chest CT is used as a bridge between high resolution CT and the functional imaging SPECT. Using the Q.Lung segmentation tool, individual whole lung function and lung subunits will be assessed, and will be correlated to irradiated fields. Calculated data for each study step will be compared in order to assess the extent of RT induced lung injury.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT03123679
Study type Interventional
Source Tel-Aviv Sourasky Medical Center
Contact
Status Not yet recruiting
Phase N/A
Start date May 10, 2017
Completion date April 2, 2020

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