Lung SBRT Motion Management (GCC 1619)

Status Terminated

Clinical Trial Summary

Real-time optical surface monitoring data will be acquired from 44 human patients with primary or metastatic lung lesions during and after their 4DCT scan (standard-of-care at our institution). A patient-specific 4D model will be developed using the raw 4DCT projections time-correlated with real-time surface monitoring. In addition, before delivering each dose fraction (3 - 5 for lung SBRT), we will acquire three 15s kV fluoroscopic image acquisitions, time-correlated with optical surface monitoring. The acquisitions will be distributed over three well-spaced beam angles, e.g., every 4th angle for a 12-field plan.

Clinical Trial Description

Surface monitoring procedure -The procedure is expected to last approximately 15 minutes after the end of the 4DCT scan, which is the standard-of-care for lung SBRT treatments at our institution. The procedure will consist of real-time surface tracking using the VisionRT system of the thoracic and/or abdominal region. Continuous audiovisual contact will be maintained with the subject during scanning. Each individual will be informed that they can stop the procedure at any point. Fluoroscopic imaging procedure - Fluoroscopic imaging will be performed in the treatment room with the patient lying in treatment position. Three 15s acquisitions will be performed under free breathing conditions, each from a different beam angle, using the on-board kV imager. Audiovisual contact will be maintained at all times with the patient. Data collection and management: An ID number will be assigned to each separate patient, and the correlation between ID number and patient name and medical record number will be kept in a password-protected file in Dr. Amit Sawant's office. The database of information extracted from the medical record and radiation treatment records for each patient will be stored in an Excel file on a computer with password protection. All image data will be de-identified by Dr. Sawant before his research team analyzes them. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02695680
Study type	Observational
Source	University of Maryland, Baltimore
Contact
Status	Terminated
Phase
Start date	October 27, 2017
Completion date	January 4, 2024

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