CACTIS - Procedures & Policies

Listed are the guidelines that must be followed by all groups who will have access to the CT Scanners for research purposes. It is the policy of CACTIS to maintain a safe environment and to promote a conscientious approach to research projects and developments.

Overview | Definitions | Health & Safety | Qualifications | CT Guidelines

CT Guidelines

All individuals operating within the CT environment will be required to comply with the safety policies of CACTIS and the Department of Radiology. Some general guidelines are as follows:

  • Radiation: CT by definition is a method of body imaging in which a thin x-ray beam rotates around the patient or in this case animal. X-rays are a form of electromagnetic radiation and therefore proper care must be taken to minimize human exposure. The CT area is equipped with lead shields and aprons to minimize researcher exposure should the need arise.

    PLEASE NOTE: Women who are pregnant should not be in the CT exam room while the scanner is obtaining images.
  • Protective Clothing: All individuals having Animal contact during the course of the CT procedure will maintain a standard of dress consistent with the demands of at least RG2 status. This includes, but is not limited to Isolation gowns, gloves, and shoe covers. The CT section does not provide these items.
  • Supplies and Equipment: It is the responsibility of the study team to bring all necessary supplies and equipment needed for the experiment. This includes but is not limited to syringes, needles, fluids, IV equipment, tubing, trap buckets, plastic covering, restraint straps, ECG leads or CD's. Room oxygen and suction are available. Items in the room are not automatically or implicitly classified as those for animal use. CT technologists do not handle anesthesia equipment or tubing. Ventilators are not provided for animal experiments, although CAMRIS equipment may be available, please ask CACTIS personnel for further details.
  • Equipment and Room Preparation: Prior to the animals placement into the CT scanner all contact surfaces and equipment to be used will be covered with protective plastic. All items that are susceptible to contact, droplet, or aerosolized contamination should be removed from the room. Items that cannot be removed must be covered until the post procedural clean up. Investigators provide absorbent pads, warming devices, and linen for use. The operator console must remain clean. Operators will always remove gloves and gowns before operating the system console.
  • Animal Preparation for Entering the CT Environment: Animals for this facility are of the RG1 Bio-Hazard type (3.15.3). RG2 type animals (3.15.4) are done only through special arrangement with CACTIS. The animal must be clean. There should be no fecal material, blood, urine, or bodily fluids present on the animal. The animal must be contained in some manner to prevent leakage of fluids onto the system. The preferred method is a 3mil plastic bag around the animal hind quarters. These 3mil bags are available at any hardware store and are not provided by the CT facility. Animals moved into and out of the scanner area must not contaminate the floor or surrounding environment. Animal transportation should be in compliance with the ULAR's SOP of transporting animals. The submission form can be found here. As the CACTIS facilities are located within the hospital, all investigators must have a "transit letter" from the Infectious Disease service prior to bringing any animals to the CT scanner.
  • Post-Procedural Cleanup: Header information entered into the scanner must be specific to each animal (e.g. animal ULAR number) and cannot be in a form that the central archive can register as a patient. The information must allow for matching the animal to the procedure. CT is not responsible for animal research studies going to central archive (PACS). The investigator's name must appear in the header information. Header information, operator, and investigator's name must be entered into the system logbook. Investigators should bring CD's with them for archiving data. Data from a study is not kept on the system disc. No films are generated for any animal research study.
  • Quality Control and Assurance: Quality Assurance of the system is done though routine Preventative Maintenance done by the CT manufacturer (Siemens). Down Time during animal studies does not allow for authorization of overtime for service calls. Phone numbers are available at the scanners for help with MR system issues.
  • CT Contrast Agents: CT contrast agents are available through CACTIS for an additional cost.