Special Procedures

Chapter Outline

100

Has many forms and is used to compare external set-ups marks and internal anatomy to the treatment plan

IGRT

200

Uses the Cartesian coordinate system and an external 3D frame of reference

SRT

300

Is used to manage the movement of organs as result of patient breathing

Respiratory Motion Management

400

Type of treatment that uses heavily charged particles with rapid dose fall-off

Proton Therapy

Types of Imaging

100

2D imaging that provides better soft tissue contrast

KV imaging

200

Table is moved 180 degrees image is obtained with stationary table. Employs two separate units

CT on rails

300

3D imaging. Uses a wider x-rays beam for scanning. can scan a larger volume. generated scatter can degrade quality of images

CBCT

400

May be internal or external. Uses various imaging modalities to document location

fiducials

Stuff

100

Radiation is on the when target is within the treatment volume, off when it is not

Gated treatments

200

ACT data set that account for respiratory motion

4D CT

300

Area or region at the beam's edge where the radiation intensity falls to 0

Penumbra

400

Two common methods for screening of prostate cancer

DRE and PSA Blood test

Tx Equipment

100

"Delivery of a well-defined beam to hard-to-reach places"

SRT

200

Cyclotron Particles

Protons

300

D_max of a Cobalt 60

0.5cm

400

Least skin sparing equipment utilized in Radiation Oncology

Superficial treatment Unit