Tracking of Respiratory-Induced Tumor Motion Using Implanted Fiducials
Public ClinicalTrials.gov record NCT00500513. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Assessment of the Reliability of Implanted Fiducials for Tracking of Respiratory-Induced Tumor Motion
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Objectives: * To determine the safety of fiducial implantation. * To determine the extent/rate of migration of radio-opaque fiducials placed in lung tumors and adjacent normal tissue. * To compare real-time portal imaging-based fiducial tracking with measurement of three-dimensional motion by four-dimensional CT scanning to determine how many fiducials are needed to track a tumor. * To determine if intra-fractional lung tumor motion changes during a course of treatment, and when during the treatment this occurs. * To correlate the position of internal fiducials with the position of the external patient surface during respiration. * To quantify the residual motion of the clinical target volume during radiotherapy gated using external fiducials. * To verify the adequacy of the treatment portal margins in encompassing the residual motion of the clinical target volume. * To determine if radio-opaque fiducial placement adjacent to the trachea (which does not move) can reduce daily setup inaccuracies, and so spare normal tissue. * To determine the motion of hilar adenopathy (if any), and whether it correlates with motion of the primary tumor.
Study identification
- NCT ID
- NCT00500513
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 10 participants
Conditions and interventions
Conditions
Interventions
- CT Scans Procedure
- Implanted markers Procedure
- Radiation Treatment (RT) Radiation
Procedure · Radiation
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 31, 2004
- Primary completion
- May 31, 2007
- Completion
- Nov 30, 2011
- Last update posted
- Jan 31, 2013
2004 – 2011
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UT MD Anderson Cancer Center | Houston | Texas | 77030 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00500513, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 31, 2013 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00500513 live on ClinicalTrials.gov.