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The purpose of using a bow-tie filter is to:

During a full-fan scanning mode, the gantry will rotate around the patient _______ degrees.

MRI linear accelerators have the following advantages over most traditional linear accelerators except:

B-mode ultrasound:

Electronic portal imaging devices (EPIDs) offer all the following advantages when compared to traditional methods except:

Select the difference between Cone Beam CT (CBCT) and standard CT is that:

During a Cone-Beam CT, images are acquired every ______ degree(s) during the gantry’s revolution.

A radiation therapy treatment method to deliver high dose(s) of radiation to a small target with a significant fall -off of dose to extracranial sites is termed:

The concept of radiosurgery was developed and put into practice by Dr. Lars Leksell, a Swedish neurosurgeon, in the early ­­­­­____:

Advantages of using image guided radiation therapy include: I.         Assuring and maintaining the geometric elements of the targeted field II.         Confidence in the use of smaller PTV margins III.         Reduction in interfraction and intrafraction changes