port film

(pŏrt) [L. porta, door, gate]

In radiation oncology an x-ray image used to verify the positioning of the patient within the planned treatment field.

References in periodicals archive ?

Verification of the exact fiducial position was obtained with a dorsal and a 90-degree port film (Figures 10 and 11).

Caption: FIGURE 10: 90 degrees or orthogonal port film.

For the irradiation of intracranial structures, the usage of port films improves set-up accuracy.

Accuracy and Precision of a Veterinary Neuronavigation System for Radiation Oncology Positioning

Doctors chose field sizes and central axes using bony landmarks with impressive accuracy; treatment setups were then verified with a port film. Other than the total dose and fraction number, there were generous margins for both.

Are the times a changin'?

The 2000RT can also now import DRR images to the CR workstation and display them next to port films for direct comparisons, without needing an image management system.

Computed radiography system

PlanarView(TM) will be similar in use to existing MV port films, but will provide diagnostic quality images at very low doses.