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    The purpose of this manual is to provide a reference for Radiology Residents Fellows and Technologists when prescribing a CT examination. Given the rapid evolution of CT technology in the past decade, the number of applications for CT has expanded greatly and the techniques for performing the optimal exam have also increased. The CT exam can now be more effectively tailored to the presumed diagnosis. This reference is meant to serve as a guideline for prescribing CT examinations, and should be modified as needed for a particular patient.


    In general, The process for performing a CT examination is as follows:

    1. The exam is scheduled by the CT secretary (and concurrently the old films are requested from the film library).
    2. The exam is protocolled by a resident or fellow on the CT service and their name should be written on the protocol sheet. Particular attention should be paid to prior examinations when prescribing an exam. When there is a question about the indications for a study, the referring doctor should be contacted by phone or pager.
    3. The technologist performs the exam and sign the protocol sheet. If there are any questions about the protocol, the technologist should contact the CT attending. If a radiologist checks the exam, the technologist should indicate this (with the doctors name) on the protocol sheet. The technologist should list the ICD9 code if non-ionic contrast is administered.
    4. The study is interpreted by the radiologist. Reports are then proofread and signed by the radiologist. All CT exams should be read within 24 hours of the exam without exception.


    Questions regarding changes in the protocols should be directed to Scott Collins, RT(R)(CT) or Lori Garceau, RT(R)(CT)(ARRT). We hope you find this helpful in providing optimal patient care.

    Scott Collins, RT(R)(CT)
    Lori Garceau, RT(R)(CT)(ARRT)

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