Flint Animal Cancer Center

Canine Intrathoracic or Extrathoracic Tumors

Patient Disease:

Canine Intrathoracic or Extrathoracic Tumors

Study Name:

Excursion of Canine Thoracic Tumors with Respiration

Purposes of the study:

  • To determine how much tumors in or on the chest of dogs move during the breathing cycle

 Primary Eligibility Criteria:

  • Dogs that have a known or suspected mass within the chest (lung, mediastinum, heart base, etc.) or on the chest (chest wall, rib, etc.)

  • Have or requires a CT scan of the chest for diagnostic and/or treatment purposes regardless of inclusion in this study

  • No evidence or knowledge of intracranial disease (brain tumor, epilepsy, nasal tumor with brain involvement)

  • No rib fractures

  • Otherwise stable for anesthesia

Study Protocol:

  • Dogs anesthetized for CT scan

  • Administration of atracurium, a neuromuscular blocking agent, to allow for control of the breathing pattern and to perform 2 breath holds during the CT scan

  • Study participation over after completion of CT scan

Owner Responsibilities:

  • You are responsible for the cost of the CT scan and any other tests recommended by your pet’s oncologist.

  • You are expected to make and keep all appointments associated with the study

 Financial Incentives:

  • The CSU Radiation Oncology service will be covering the cost of the atracurium administration and reversal for all pets enrolled in this study, which would be the only addition to a standard CT with anesthesia protocol.
  • $250 credit to your pet’s VTH account at the time of study completion.


If you have further questions about any of our clinical trials, please submit an online consulting form. Your consult will then be directed to an appropriate oncology clinician. Requests are typically returned within 5 business days.