Computerized Axial Tomography (CAT or CT Scan)

Computerized Axial Tomography (CAT or CT Scan)

Hours of Service:

  • 7:30 AM – 7:00 PM, Monday – Friday, on-call emergency services after hours.

All outpatient CAT Scans are to be scheduled through our central scheduling line at 777-4049.

Overview of CT:

The CT Scan Department offers a GE Hi-Speed CT scanner capable of detecting a wide range of pathology throughout the body. The scan can be performed in either the axial plane or helical (spiral), which can then be reconstructed for a 3-dimentional image.

CT Scanning Procedures:

General CT Scanning (Non-Contrast)

Contrast CT Procedures
IV Contrast: Patients 70 years old and up, and patients with high blood pressure or known renal disease will need a lab test to determine their creatinine level.

Oral Contrast:
(Abdomen/Pelvis Only)
1) Nothing to eat 4 hours prior to exam.
2) Patient may pick up contrast at Radiology front desk, or at physician’s office prior to exam.
3) Patient is to follow instructions given with the contrast.


The CT Scanning Department is staffed by Radiologic Technologists (RT’s) that are registered by the American Registry of Radiologic Technologists, and licensed by the State of Maine. Some of the technologists have also attained advanced certification in this modality.

Frequently Asked Questions

What is Oral Contrast?

Gastroview is the oral contrast (or dye) that is used to highlight the stomach and intestines for abdominal CT Scanning exams. It is mixed with juice and needs to be taken prior to the exam.

What is IV Contrast?

Optiray is the IV contrast (or dye) that is used for exams that require having an IV started at the procedure time. This is used to highlight the blood vessels and organs in the chest and abdomen.