Annotations

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Annotations

 

DICOM files contain a lot of information stored in tags associated with the image.

The most important data is overlaid on top of the image displayed, grouped in the corners.

Depending on image modality, some fields may be missing.

 

Top left

 

RadiAnt_DICOM_Viewer_Annotations_TopLeft

 

Number of displayed image and total number of loaded images

Series number

Compression info (displayed only when lossy compression is used)

 

RadiAnt_DICOM_Viewer_Annotations_TopLeft_Mammo

 

The following additional fields are presented only for MG modality (mammography):

Image laterality

View position

Top right

 

RadiAnt_DICOM_Viewer_Annotations_TopRight

 

Patient first and last name

Patient ID

Patient birth date and sex

Institution name

Study ID

Study description

Series description

Image comments

Study comments

Rotation/flip (if applied)

Bottom left

 

RadiAnt_DICOM_Viewer_Annotations_BottomLeft

 

Mouse cursor position (coordinates of the pixel in displayed DICOM image) and value of the pixel

Window level and window width (brightness and contrast), name of window preset, negative mode indicator

Thickness and location of the slice (e.g. CT and MR modalities) or rotation and tilt of x-ray lamp (XA modality)

Bottom right

 

RadiAnt_DICOM_Viewer_Annotations_BottomRight

 

Field strength (FS, only for MR modality)

Repetition time, Echo time (TR, TE, only for MR modality)

Date and time of image acquisition

 

RadiAnt_DICOM_Viewer_Annotations_Rulers_Orientation

 

If the DICOM image contains scale information (pixel spacing), two 10cm rulers with 1cm marks are displayed along left and bottom edges of the panel (red arrows).

 

If the DICOM image contains information about patient orientation in space, there is a letter (or combination of letters) symbolizing the patient’s sides displayed at the center of each panel's edge (green arrows).

 

A – anterior

P – posterior

L – left

R – right

S – superior

I - inferior

 

Annotations can be turned off and on by clicking the  Annotations  button on the toolbar or pressing  F12  key.

 

RadiAnt_DICOM_Viewer_Annotations_Button

 

To hide all patient data (in series preview bar, panel title bar, overlaid annotations) click  Hide patient data  menu item or use the  Shift + F12  shortcut.

 

RadiAnt_DICOM_Viewer_Annotations_DropDownMenu