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### Automatically applying a display protocol

When you open a study, the Disc Advanced Viewer automatically determines a list of relevant display protocols, and applies the most appropriate one to the study. See Overview of applying a display protocol.

What is a relevant display protocol

Relevancy of display protocols is determined by the Anchor Applicability Rules, which are the following filter criteria:

| • | Modalities

| • | Body Regions

| • | Procedure Types

When you open a study, the Disc Advanced Viewer compares the study information with the filter criteria of all the display protocols that are available to you. A display protocol is relevant to a study when the study information matches all the filter criteria.

Filter criterion to match | Meaning
Modality | The modality of the study matches at least one of the modalities specified in the display protocol.
Body Regions | At least one of the body regions associated with the study matches at least one of the body regions specified in the display protocol.
Procedure Types | At least one of the procedure types associated with the study matches at least one of the procedure types specified in the display protocol.

The following table describes the conditions when a display protocol becomes relevant.

If... | Then...
A display protocol contains the CT modality as the filter criterion | The display protocol becomes relevant when you open a CT study.
A display protocol contains the Head body region as the filter criterion | The display protocol becomes relevant when you open a study associated with the Head body region.
A display protocol contains the Bone Density Spine procedure type as the filter criterion | The display protocol becomes relevant when you open a study associated with the Bone Density Spine procedure type.
A display protocol contains the CT modality and Head body region as the filter criteria | The display protocol becomes relevant when you open a CT study associated with the Head body region.

If the information is not available, the corresponding filter criterion is ignored. For example, if a study is not associated with any body region, the Disc Advanced Viewer checks the study information against the Modalities and Procedure Type filters criteria only.

The filter criteria are specified when the display protocol is created.

Selecting the most appropriate display protocol

A study can have more than one relevant display protocol. The ranking determines which relevant display protocol is automatically applied when the study is opened. The default display protocol is the one that has the highest ranking. You can set a display protocol as the default when you create it in Radiology Station.

Note: By default, the built-in Generic display protocol is applied.

Applying the Generic display protocol

The Generic display protocol is a built-in display protocol for studies of any modality. It provides a generic way to display studies. By default, it has the highest ranking and is automatically applied when a study is opened.

When the Generic display protocol is applied, the Disc Advanced Viewer performs the following tasks:

Task | Details
Identifies and opens relevant studies | A study is considered relevant for interpreting the anchor study when:
| • | The study has at least one body region in common with the anchor study, and
| • | The study was performed within the last six months.
Up to two most recent relevant studies can be opened.
Displays images using the most appropriate way | Based on the modality of the studies, the Disc Advanced Viewer identifies the most appropriate way to display the images, and displays the images accordingly. This also includes creating display protocol stages. For details on display protocol stages, see Understanding display protocol stages.

Note: The Generic display protocol cannot be modified or deleted.

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