Home
Reading images
To view and analyze images, use the Image area tools.
Measurements and annotations (markups)
Image area Markup tools calibrate images, take measurements, and highlight and annotate areas with arrows or text. You can also hide, modify, or delete markups.
Ultrasound measurements: Reference
Several tools are available for taking ultrasound measurements.
Calculating the pressure half time (PHT)
Use the PHT tool to calculate the pressure half time on Doppler ultrasound images.

Diagnostic Desktop Help
The Diagnostic Desktop combines the features of a RIS, PACS, and reporting program into a seamless, single program for medical imaging departments.
New in Agfa HealthCare Enterprise Imaging
Review new features for this desktop.
New to Diagnostic Desktop: Start here
The Diagnostic Desktop is a single point of entry for all information, image viewing, and speech recognition features related to medical imaging.
Understanding Agfa HealthCare Enterprise Imaging
Learn the basic concepts of Agfa HealthCare Enterprise Imaging.
Organizing your work
Complete your work with tasks, optimize your workflow, and communicate with others who work on tasks.
Consulting studies
You can consult studies and compare them to the active ones.
Processing orders
Order information provides procedural details relating to images being taken.
Printing procedures and study labels
You can print selected procedures as well as the study label with a barcode.
Working with procedure plans
View, modify, and switch procedure plans.
Managing attachments
Use attachments to collect and communicate additional information about the patient, study, order, report, or procedure.
Reporting
Learn how to consult patient data, and work with reports to create your diagnosis.
Reading images
To view and analyze images, use the Image area tools.
- Image area: Basic tasks
  The Image area combines all image display, manipulation, and enhancement tools for reading in Agfa HealthCare Enterprise Imaging.
- Calibrating images
  Calibration refers to how image information is translated from on-screen pixels to real-world measurements. You can calibrate images with the calibration line and the calibration circle tool.
- Showing and hiding patient demographics
  Study images can be displayed with or without patient demographics.
- Hanging protocols, presentation groups, and viewports
  A hanging protocol is a logical set of instructions for displaying the images in a study. Hanging protocols contain one or more presentation groups, and each presentation group contains one or more viewports.
- Image information
  Information about study images, such as patient demographics, CAD SR markers, and image type, can be viewed in the Image area.
- Snapshots: Concepts
  An image snapshot stores the state of images in the Image area and allows you to return the Image area to the same state later.
- Configuring the display of ECG overlays
  XA images can contain overlays that can be configured to be shown or hidden.
- Key images
  Key images identify the most clinically relevant images in a series.
- Mammography
  The Image area provides mammography-specific functionality.
- Measurements and annotations (markups)
  Image area Markup tools calibrate images, take measurements, and highlight and annotate areas with arrows or text. You can also hide, modify, or delete markups.
  - Markup basics
    All markups share the same, basic interactive behavior. You can move or resize them with a few easy steps. Markups also provide the option to show measurement information.
  - Drawing a 2-point circle markup
    Use the Circle (2-points) markup tool to annotate or measure a circular region of interest.
  - Drawing a 3-point circle markup
    Use the Circle (3-points) markup tool to annotate or measure a circular region of interest.
  - Drawing an ellipse markup
    Use the Ellipse (2-points) markup tool to annotate or measure an elliptical region of interest.
  - Displaying group statistics
    You can display common statistics for a group of markups.
  - Naming a markup
    You can edit the name of an annotation or measurement markup.
  - Drawing a rectangle markup
    Use the Rectangle markup tool to annotate or measure a rectangular region of interest.
  - Drawing an arrow
    Use the Arrow markup tool to point to a region of interest.
  - Annotating an image
    Use the Text annotation markup tool to highlight an aspect of the study.
  - Measuring angles
    Use the Angle markup tool to measure an angle in an image by drawing two lines that do not intersect.
  - Measuring distances
    Use the Distance measurement tool to measure the distance between two points.
  - Creating a ratio measurement
    Use the Length ratio tool to measure the ratio of one line to another.
  - Displaying a histogram
    Select a region of interest and display a histogram graph showing the frequency of pixel values inside that region by using the Histogram tool.
  - Creating an intensity profile
    Use the Value profile tool to create a graph that illustrates the values of the image pixels intersected by a drawn line.
  - Creating a shutter
    The rectangular shutter tool can be used to mask or black out portions of an image (usually the outer edges) so that a particular area is the focal point for viewing.
  - Accuracy of measurements
    Various factors affect how accurate Image area measurements area.
  - Measuring the area of an ROI
    Use the Area markup tool to measure the area of regions of interest (ROI).
  - Orthopedic measurements
    Ten orthopedic markup tools are available.
  - Ultrasound measurements: Reference
    Several tools are available for taking ultrasound measurements.
    - Measuring the chamber volume
      Use the Chamber volume markup tool to measure heart chamber volumes on 2D ultrasound images with the method of disks.
    - Measuring the left ventricle (LV distance)
      Use the LV distance tool to measure the interventricular septum (IVS), the left ventricle internal dimension (LVID), and the left ventricular posterior wall (LVPW) on M-mode ultrasound images.
    - Calculating the pressure half time (PHT)
      Use the PHT tool to calculate the pressure half time on Doppler ultrasound images.
    - Calculating the velocity time integral (VTI)
      Use the VTI tool to calculate the velocity time integral on Doppler ultrasound images.
- Navigate images
  You have many options for navigating through the images in a study.
- Panning and zooming images
  Adjust the position and the magnification factor of images.
- Rotating images
  You can adjust study images that are not correctly oriented by applying the appropriate Rotation or Flip tool.
- 3D visualization
  Volume rendering visualizes 2D slice images as a 3D volume. Tools—including free rotation, color-coded enhancement of intensities, and clipping plane sliders—provide advanced decision-making support.
- 3D synchronization
  The 3D sync tool provides 3D synchronization of two or more series without changing the layout or applying a new hanging protocol. 3D synchronization aligns multiple series in one space.
- Volume segmentation
  The Image area volume segmentation tools allow you to define structures that have to be measured, as well as to define structures to be hidden or to visually enhance specific parts within a volume.
- Reconstruction
  CPR reconstructs curved planes defined by a longitudinal axis. MPR reconstructs axial, coronal, sagittal, or oblique views from slices in any of these planes.
- Multi 3D
  Multi 3D series consist of slice image data acquired at multiple points over time. You can scroll through or automatically play back multi 3D series.
- Comparison studies
  Comparison studies contain prior imaging to provide a full patient history.
- Window level
  Enterprise Imaging includes functionality that enables you to adjust the brightness and contrast of an image for diagnostic viewing or to better visualize images by applying a color schema.
- Selecting an SUV calculation method
  Three Standard uptake values (SUV) calculation methods are available for PT images: body weight (SUVbw), body surface area (SUVbsa), and lean body mass (SUVlbm).
- Nuclear medicine: Applying color palettes
  With specific color lookup tables stored as window level presets, you can highlight certain features of a grayscale NM/PET study. You can further adjust the display with the nuclear medicine color bar.
- Splitting multi-phasic CT series
  To split a series that contains multiple phases into several series that each contain one phase, use the Split series tool.
- Presentation states
  A presentation state is a set of display attributes that you apply to an image. You can save and load presentation states.
- TOMTEC IMAGE-COM integrations: Concepts
  The integration of IMAGE-COM, a cardiology study viewer powered by TOMTEC Imaging Systems, into Agfa HealthCare Enterprise Imaging extends the functionality of the Image area with additional analytical tools and features.
- Displaying Riverain ClearRead CT results
  You can view chest CT studies, including vessel suppressed images and details on detected lung nodules, from ClearRead CT. The details can include image overlays (presentation states), summary series, or report series.
- Displaying Riverain ClearRead Xray results
  You can view X-ray studies processed by ClearRead Xray. The views displayed include bone suppressed, enhanced, and comparison images.
- Displaying Lunit INSIGHT CXR results
  You can view chest radiography studies processed by Lunit INSIGHT CXR.
- Displaying Lunit INSIGHT MMG results
  You can view mammography studies processed by Lunit INSIGHT MMG.
- MUSICA: Improving contrast and detail in Agfa CR/DR images
  Improve the contrast and detail in CR/DR images through MUSICA settings. MUSICA is an enhanced processing algorithm.
Learning and improvement
Peer learning workflows and teaching files can be used within Agfa HealthCare Enterprise Imaging.
Scheduling events in the Calendar
Review scheduled procedures and conference sessions in the Calendar.
Radiation management
You can keep track of the total amount of radiation a patient has received.
Performing quality control
Quality control is a process of aligning the data about patients with their images, which come from different sources. Quality control is an automatic step in the unverified study workflow, but it can also be performed manually.
Accessing desktop integrations from client desktops
You can access and use third-party applications that are integrated with Agfa HealthCare Enterprise Imaging from client desktops.
Finding studies
To find studies, use either the simple or the advanced search interface.
Customizing the desktop look and feel options
Define Collaborator, list, and search options at the user, desktop, or system level.
Maintaining security and access
In Agfa HealthCare Enterprise Imaging, sets of access-controlled features are combined into permission sets. One or more permission sets are included security roles. Security roles are assigned to users.
Troubleshooting: Log files and known limitations
Use system log files supplied with Agfa HealthCare Enterprise Imaging for basic troubleshooting.
Keyboard shortcuts
Use the keyboard shortcuts for quick access to your everyday tasks.
Testing the connection speed
Your administrator might ask you to communicate the bandwidth and latency values to optimize the configuration for your workstation in Administrator desktop.
Giving feedback on the documentation
Thank you for taking the time to provide feedback. Your comments will be forwarded to the group responsible for this product’s documentation.
Admonitions legend
Admonitions convey useful or cautionary information that is set apart from running text with the use of a standardized icon and border lines.
Copyright information
© 2022 Agfa HealthCare N.V., Septestraat 27, B-2640, Mortsel, Belgium. All rights reserved. No parts of this document may be reproduced, copied, translated, adapted or transmitted in any form or by any means without prior written permission of Agfa HealthCare N.V.
Indications for use statement
Agfa HealthCare Enterprise Imaging and related viewing applications have specific indications for use.

Calculating the pressure half time (PHT)Topic number: 1425412549325

Use the PHT tool to calculate the pressure half time on Doppler ultrasound images.

Prerequisite

This tool can only be used on images or regions of images where the unit of the vertical direction is compatible with meter per seconds and the unit of the horizontal direction is compatible with seconds (Doppler US).

Pressure half time measurements

To calculate the pressure half time

In the Image area top toolbar, click the arrow next to the ruler to open the markup list and select Ultrasound > PHT.
Click the point of the peak velocity (1) in the Doppler region of the ultrasound image to place the first handle of the markup.
The second handle of the markup is automatically displayed on the baseline (velocity = 0 m/s).
Move the second handle (2) along the baseline to the correct position and click to finalize the markup.

A vertical line (3) is displayed at the point where the gradient is half its maximum initial value. PHT is calculated and displayed in milliseconds (4).