Aquarius Workstation

TeraRecon's Aquarius Workstation enables real-time diagnostic review of 2D, 3D, and 4D images for managing large thin-slice CT and MR scans. It offers a comprehensive suite of clinical application modules and has been carefully designed for streamlined workflow and ease-of-use. Large thin-slice studies such as vascular run-offs or multi-phase cardiac studies with 3,000+ slices can be rapidly loaded with segmentation, editing, analysis, and region-growing tools to distinguish pathologies, blood vessels, and bone.

The Aquarius Workstation 3.6 offers protocol-based workflow tools which simplify the interpretation by automatically presenting the 3D volume based on the study type selected by the operated. For cardiovascular CT, the enhanced software offers soft plaque analysis, automatic vessel segmentation and extraction, measurement, interpretation, and reporting tools.

Standard Aquarius Workstation Features:

The 3D viewer is a powerful visualization tool that utilizes the VolumePro 1000 as is its volume rendering engine. The 3D viewer has the following features/capabilities:

Fast 3D reconstruction tools include: 3D volume rendering, MPR, MIP, MinIP, RaySum, thick MPR, perspective 3D, Curved Planar Reformats, and the ability to switch between these modes. CPR is a manual way to place points that are only in straight line, for example, the posterior aspect of the vertebral body. Centerline extraction uses the points that you place to automatically generate a centerline, for example, through the center of vessel.

Fully integrated original slice axial mode review

Viewing 4D data: one can load dynamic 4D datasets by selecting multiple series.

Segmentation and editing functions easily remove skeletal structure from vasculature. Transparent anatomical landmarks can be superimposed to show the relationship of arteries and vessels to bone.

Multi-phase MRA and CTA support is provided for time-dependent studies with 3 simultaneous linked oblique MPR views.

Coronary CTA allows for viewing stenosis, calcification, and thrombosis of vessels and small coronary branches.

Performing quick stenosis is accomplished with a single keystroke. When one performs a stenosis on a study the diameter and distance measurements are displayed annotations.

When outputting files, user can use batch reformatting in 2D and 3D for creating movie files. One can output images to various formats such as JPG, BMP, and print images to a film or hardcopy printer. One can export images to CD-R with a freely distributable viewing application or export DICOM files back to the PACS with reports. A reporting module is provided using MS Word.

Standard Segmentation, Measurement, and Analysis Tools:

Advanced measurement tools are provided to measure on 2D source images or 3D volumes relative to fiducial markers. These tools include distance, angle, volume, ellipse, circle, and region-of-interest measurements.

Cubic viewing is a quick examination tool to visualize volume regions-of-interest from the inside and outside. Cubic viewing is a quick, easy, and automated way to segment and view a lesion, polyp, or other region-of-interest.

Point-and-click object selection, region growing, erosion, dilation, and mask arithmetic allows one to visually add structures or remove unwanted data.

Select and hide the bone for AAA and run-off studies to visualize only the vessels. The select-and-hide feature is a powerful segmentation tool to quickly segment bone from vessels. The head and neck bone removal feature is used to remove the skull and bones in the neck region so that only the vessels are exposed.

Independent masks allow multiple different edited volumes to be overlaid, with each layer using different rendering parameters, so for example, enhanced blood and bone may be rendered with different colors even though they consist of a similar range of hounsfield unit values. Save the entire workplace to thumbnails for later retrieval.

One can unfold the colon and visualize in wrap-around endoluminal 3D to reveal and assess the entire structure rapidly.

The soft plaque analysis feature displays the color map and calculates the volume of the HU range of the ROI. One can change the suggested HU values in the editable boxes.

The body fat analysis feature displays the body fat and the visceral fat of a region of interest. The annotations display the area of body fat, the percentage ratio, and the outer circumference of the ROI.

Optional Aquarius Workstation Modules:

VAT: Vessel Analysis Tool is used to measure vessel diameters, lengths, areas, volumes, and angles for aneurysm analysis pre- and post-stenting, or for characterization of occlusive disease. Special tools are provided for characterizing calcification, thrombus, and endoleaks. Vessel analysis provides quantitative measurements using 3D reconstructions of vessel images which include the stretched MPR where the centerline is straightened and perpendicular MPR images are stacked to create new volume. The measurements include the minimum and maximum diameter of the lumen, the area of calculation of the diameter, the angle, and the length of the vessel in question.

TVA: Time-Volume Analysis is used for analyzing changes in volume over time. The TVA module calculates time-dependent behavior of volumes in multiple phased studies from CT and MR. An example of a time-dependent behavior is the change in the volume of the left ventricle of the heart. Using TVA one can calculate wall thickness, wall thickening, segmental ejection fraction, and wall intensity, along with time-volume graphs with velocity and acceleration curves.

TDA: Time-Density Analysis is used for studying time-dependence of contrast enhancement, such as enhancement of brain tissue due to perfusion with contrast-enhanced blood. The TDA modules studies blood flow through a structure after the patient is injected with a contrast dye. The study provides a time-density curve, where the density is the CT number of the arbitrary ROI. The study also creates several kinds of functional maps: Blood Volume (BV), Blood Flow (BF), Mean Transit Time (MTT), Time-to-Peak, Temporal Maximum Intensity Projection (MIP), error-maps, etc.

Calcium Scoring provides for evaluation of plaque burden and advanced atherosclerosis for coronary and other arteries. This module includes an integrated database and reporting system. The calcium scoring module is used to calculate the Agatston score, the volume, and the mass of the calcium deposits in the coronary arteries.

Fly-through navigation allows for rapid automatic flight path viewing for colon, airways, or contrasted vasculature.

SAT: Segmentation Analysis Tracking is used for analyzing and tracking volumes such as soft tissue masses or solitary pulmonary nodules. SAT is used to segment and analyze and track lesions over the course of time. The goal of this study is to analyze a volume in its present state, as well as to track its rate of growth over time.

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