Every body area is divided into a number of spots of approximately 0.5 x 0.5 cm, with one spot for
e
very degree of beam rotaon and angulaon.
The radiated skin area corresponds with the part of the skin that is actually irradiated, which depends
on the geometrical projecon of the X-ray beam and the posion of the collimator shuers.
The exposed body area (shaded grey) is the body area that is covered most by the radiated skin area.
The system keeps track of the peak air kerma that is applied to every irradiated body zone of the sphere
via real-me dose calculaon.
You can see the following X-ray dose informaon:
• The total actual cumulave air kerma for the whole body is shown as a number.
• During radiaon, the actual cumulave peak air kerma and the peak air kerma rate of the hoest
spot within the radiated body zone, is shown as a number and as a graphical representaon.
• During radiaon and standby, the predicted remaining uoroscopy me unl the threshold is
reached is shown for the current X-ray beam projecon.
• Visual feedback, for example, a change of color on the screen, when the cumulave peak air kerma
in the radiated body zone becomes higher than a customizable threshold. The default seng is 2
Gy. You are warned that connuing radiang in the current projecon might lead to increased risk
of determinisc eects. To solve this, you should change the projecon of the X-ray beam so that
another body area is exposed, or modify the system sengs as described in X‐ray Protocol
Selecon (page 289).
The zone dose informaon is immediately adapted when you change the eld size, the source-to-image
distance, the uoroscopy avor, or the X-ray beam projecon.
19.1.5 Intervenonal Tools
Intervenonal Tools extend the funconality of compable X-ray equipment with 3D imaging during an
intervenonal procedure.
The Intervenonal Tools are a suite of soware products that help physicians diagnose and treat
medical diseases. The applicaons are mainly used in the cathlab during an intervenonal procedure,
and fulll the following main goals:
• Understanding the situaon
• Plan the intervenon
• Support the intervenon
• Verify the results of the intervenon
The Intervenonal Workspot supports Intervenonal Tools by providing central data administraon
funcons such as paent administraon, prinng and export. A basic viewing applicaon is also
provided. Each Intervenonal Tool is provided with dedicated Instrucons for Use containing details of
using the specic image processing tools associated with the Intervenonal Tool.
19.1.6 Injector Control Methods
Depending upon your system conguraon, you may use either one or two switches when using
contrast injecon, in coupled or uncoupled modes.
For all control methods, you must prepare the injector manually at an appropriate me.
Always refer to the instrucons for use for your injector for more informaon about using the injector.
Uncoupled Operaon
Since uncoupled operaon of a contrast injector does not involve communicaon between the X-ray
system and the contrast injector, you will use more than one switch when operang in uncoupled
Glossary Denions
Azurion Release 1.2 Ins
trucons for Use 390 Philips Healthcare 4522 203 52421