Positioning of Patients


The exact position of the patient is extremely critical in exposing the patient to the correct radiation dosage, high quality imaging, giving clearer information and ultimately helping to achieve swift and accurate diagnoses.


In radiation therapy, line lasers are used to position a patient in a magnetic resonance tomograph (MRT) or computer tomograph (CT).


Line lasers or cross-hair lasers with red or green wavelengths are particularly well suited for positioning purposes. The emissions produced by laser class 1 laser modules are harmless to the patient and are, therefore, often used. Line lasers are commonly integrated into a complete system with optical monitoring. Alignment of the laser beam with the body of the laser housing is an important consideration, to achieve a high level of accuracy for the positioning system.