4-Dimensional CT Derived Ventilation Versus SPECT Aerosol Ventilation in Patients With Thoracic Malignancies

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
M.D. Anderson Cancer Center
ClinicalTrials.gov Identifier:
First received: September 14, 2007
Last updated: September 29, 2014
Last verified: September 2014

The goal of this clinical research study is to compare a new lung function calculation method with 2 standard imaging methods.

A secondary goal is to evaluate the effect of airway pressure on lung function and tumor motion.

Condition Intervention
Esophageal Cancer
Lung Cancer
Procedure: 4D CT scans
Procedure: Lung Function Imaging

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Phase II Trial Comparing 4-Dimensional Computed Tomography Derived Ventilation Versus SPECT/CT Tc-99m Aerosol Ventilation in Patients With Thoracic Malignancies

Resource links provided by NLM:

Further study details as provided by M.D. Anderson Cancer Center:

Primary Outcome Measures:
  • Correlation between 4-dimensional computed tomography (4D CT) derived ventilation and single photon emission tomography (SPECT) aerosol Tc-99m determined ventilation [ Time Frame: 2 years ] [ Designated as safety issue: No ]

Estimated Enrollment: 36
Study Start Date: August 2007
Estimated Primary Completion Date: November 2016 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
4-DCT Ventilation Validation
Patients diagnosed with esophageal or lung cancer.
Procedure: 4D CT scans
Three 4D CT scans will be performed. After you are out of the CT scanner, ventilation images will be calculated from the 4D CT images and will be compared with the standard ventilation imaging method.
Procedure: Lung Function Imaging
Lung function imaging performed to provide information on how well the lungs work, how air moves into the lungs with breathing, and blood circulation into the lungs.

Detailed Description:

By using a 4-dimensional (4D) computed tomography (CT) scans researchers will create ventilation (circulation of air) calculations. This new calculation method is quicker and may produce better images than the standard ventilation calculations.

Before you can start this study, you may have a "screening test." This test will help the doctor decide if you are eligible to take part in this study. Women who are able to have children must have a negative blood (about 2 teaspoons) pregnancy test.

If you agree to take part in this study and are found to be eligible, you will have lung function imaging. Lung function imaging gives researchers information on how well the lungs work, how air moves into the lungs with breathing, and blood circulation into the lungs.

You will have three 4D CT scans performed while you are breathing quietly. A 2-inch plastic box will be placed on top of your chest to monitor the motion of your chest during the scanning. After you are out of the CT scanner (once the scanning is finished), ventilation images are calculated from the 4D CT images and will be compared with the standard ventilation imaging method. The 4D CT imaging will take about 30 minutes to complete.

As part of standard care, once you have finished the 4D CT scan, you will have a single photon emission computed tomography (SPECT) pulmonary (lung) ventilation scan performed. The SPECT ventilation scan requires that you first breathe in a radioactive aerosol (or mist, called Tc-99m DPTA), which will help the study doctor tell where air goes when you breathe. Then you will be placed in the SPECT scanner, and images will be taken of your lungs. The SPECT imaging will take about 1 hour to complete.

Within 10 days after the first imaging session, you will return for a second imaging session. During the second imaging session, you will have a standard of care SPECT pulmonary perfusion (blood supply to tissue and organs) test done. During this test, a radioactive substance is given by vein (called Tc-99m MAA). This substance will get trapped in the lungs, and the SPECT imaging will show the blood flow in the lungs. This test should take 45-60 minutes to complete.

Once you complete the second imaging session, your participation will over in this study.

This is an investigational study. All of the imaging scans used in this study are FDA approved and commercially available. The calculation of ventilation images from 4D CT scanning is investigational and authorized for use in research only. Up to 36 patients will take part in this study. All will be enrolled at M. D. Anderson.


Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Patients diagnosed with esophageal or lung cancer.


Inclusion Criteria:

  1. Patients with pathologic diagnosis of esophagus or lung cancer (Stage I through IV).
  2. Patients must be able to lie flat for the duration of the treatment planning sessions.
  3. Patients must sign informed consent.
  4. Patients who are scheduled to receive radiation therapy.
  5. A cohort of 6 lung cancer patients whose primary tumors move greater than 1 cm will be recruited (CPAP cohort).

Exclusion Criteria:

  1. Significant pleural effusion as evaluated by the attending Radiation Oncologist is excluded.
  2. Women of childbearing potential (A woman of child-bearing potential is a sexually mature woman who has not undergone a hysterectomy or who has not been naturally postmenopausal for at least 24 consecutive months [i.e., who has had menses at any time in the preceding 24 consecutive months]) and male participants must practice effective contraception (oral, injectable, or implantable hormonal contraceptive; tubal ligation; intra-uterine device; barrier contraceptive with spermicide; or vasectomized partner) throughout the study.
  3. Patients with severe COPD or asthma will be excluded from the CPAP cohort.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00531180

United States, Texas
University of Texas MD Anderson Cancer Center
Houston, Texas, United States, 77030
Sponsors and Collaborators
M.D. Anderson Cancer Center
Principal Investigator: Thomas Guerrero, MD, PhD M.D. Anderson Cancer Center
  More Information

Additional Information:
No publications provided

Responsible Party: M.D. Anderson Cancer Center
ClinicalTrials.gov Identifier: NCT00531180     History of Changes
Other Study ID Numbers: 2006-0698, R21CA128230
Study First Received: September 14, 2007
Last Updated: September 29, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by M.D. Anderson Cancer Center:
Esophageal Cancer
Lung Cancer
Thoracic Malignancies
4D CT scans
Lung Function

Additional relevant MeSH terms:
Esophageal Neoplasms
Digestive System Diseases
Digestive System Neoplasms
Esophageal Diseases
Gastrointestinal Diseases
Gastrointestinal Neoplasms
Head and Neck Neoplasms
Neoplasms by Site

ClinicalTrials.gov processed this record on April 23, 2015