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Radiological Imaging Technology


Machine QA MLC QA Patient QA Imaging QA

RIT EPID MLC with Isocenter

 
RIT EPID MLC with Isocenter

A software package that combines TG-142 Machine QA, MLC QA for Varian and Elekta linear accelerators, EPID QA phantom analysis, and 3D Winston-Lutz Isocenter Optimization

 

RIT EPID MLC with Isocenter software consolidates several of RIT's innovative therapy products into one comprehensive package to perform MLC QA for Varian and Elekta machines, beam measurements for Machine QA, and EPID MV Imaging phantom analysis. This package also include's RIT's most popular routine, 3D Winston-Lutz Isocenter Optimization. The software utilizes a combination of powerful, robust routines in a user-friendly interface to maximize the efficiency and precision of your measurements. For added convenience, you can easily export your analysis data as customizable reports or to the RITtrend™ statistical database for large-scale tracking and trending over time.

 

Isocenter Optimization

Enhanced 3D Winston-Lutz with Virtual Star Shot*

RIT EPID MLC with Isocenter software comes equipped with an automated 3D Stereotactic Alignment routine to give you a fast and accurate measurement of isocenter accuracy, allowing you to optimize your SRS/SBRT delivery. Automatically process a range of 3 to 16 EPID Winston-Lutz images for fast, sub-pixel level accuracy of isocenter position. This routine allows physicists to perform daily or patient-specific analyses using specific clinical treatment angles. Using only a set of EPID Winston-Lutz images, the RIT system will calculate deviations between radiation and mechanical isocenter, determine ball/BB setup error, and suggest couch alignment adjustments to optimize your system’s accuracy. Additionally, this routine enables individual component (gantry, collimator, couch) characterization to better understand distinct contributions to isocenter deviation, giving insight into adjustments that can be made to improve delivery performance, if needed. RIT's Isocenter Optimization routine allows for optimal cone detection, resulting in the utmost precision.

Eliminate your need for films and increase your accuracy using Virtual Star Shot* with ANY combination of angles, reconstructed using a set of Winston-Lutz images in its dedicated window! Patents: US 9192784, JP 6009705, CA 2918045, and other international patents pending.

 *US Patent 9192784, JP Patent 6009705, CA Patent 2918045, and other international patents pending.

Isocenter

MLC QA

Varian MLC

  • EPID Picket Fence Test
    This routine automates the classic picket fence test.
     
  • EPID Leaf Speed Test
    Without the use of log files, this test measures the consistency and accuracy of Varian MLC leaf speeds as they move across an imager.
     
  • Automated Varian RapidArc® Tests
    Images may be taken at any distance from EPID, Film, or CR Images. RIT’s RapidArc QA routines support the Millennium 120, HD120 MLC, and Halcyon® MLC models. This includes:
    • RapidArc Test 0.1: dMLC Dosimetry
    • RapidArc Test 0.2: Picket Fence vs. Gantry Angle
    • RapidArc Test 1.1: Picket Fence During RapidArc
    • RapidArc Test 1.2: Picket Fence with Errors
    • RapidArc Test 2: Dose Rate and Gantry Speed
    • RapidArc Test 3: Leaf Speed
EPID Picket Fence
  


Elekta MLC

  • Hancock Tests for Elekta Machines
    The Hancock Tests use the Elekta iView™ imager to automatically measure leaf position vs. isocenter position, and jaw leaf setback measurements. Tests include:
    • 2-Image Hancock Test
    • 4-Image Hancock Test
    • Hancock Test With Backup Jaws
       
  • EPID Picket Fence Test
    This routine automates the classic picket fence test.
     
  • Elekta Leaf Speed Tests
    These tests aligns two images to analyze the consistency of the leaf speed. Tests include:
    • EPID Leaf Speed Test for Elekta iView™
    • EPID Leaf Speed Test (Agility) for and Agility™
Hancock Test for Elekta
 

Other MLC Tests

  • Bayouth MLC Analysis (can be used for CyberKnife® MLC)
    Analyze MLCs that require leaf gaps between banks.
     
  • Generic (TG50) Picket Fence Test
     
  • Setup MLC Leaf Template

General Features

  • Image Compositor
     
  • Image Rotation and Resize


iView™ and Agility™ are trademarks of Elekta AB. RapidArc® and Halcyon® are registered trademarks of Varian Medical Systems, Inc. CyberKnife® is a registered trademark of Accuray, Inc.

Machine QA

Beam Measurements

  • Auto Star Shot Analysis
    RIT’s Star Shot beam detection routine features a fully-automated one-click interface with robust and accurate detection algorithms. The algorithm removes pre-processing from your workflow, allowing for quicker acquisition of results. Polarity, ROI, number of spokes, and spoke center are all automatically extracted from the image, then applied in the analysis. Beam center overlays on the beam profile plots provide a clear indication of the automated routine’s performance. The routine utilizes sophisticated AI algorithms for even more accurate and reliable measurements. The AI obtains a 99% accuracy rate of spoke detection in a wide range of Star Shot images. If desired, the routine will also allow you to easily modify the settings to fine-tune the automated analysis by hand.
     
  • Radiation/Light Field Coincidence
    EPID images may be analyzed without a calibration file and with custom field sizes. Center location can be found by taking a BB, pinprick, or using an L-Rad Phantom.
     
  • Wedge Check
     
  • Output Constancy

  • Image Histogram
  Auto Star Shot Analysis

Imaging QA/QC

EPID MV Imaging

  • PTW EPID QC Phantom
    Analysis Measurements: Signal linearity, SNR, response linearity, isotropy, geometric accuracy, MTF, low contrast measurements. Offers support for all EPID devices: Varian aS500/aS1000, Elekta iView™ and Siemens. Couch placement analysis is supported.
     
  • RIT EPID Phantom
    (EPID QA Phantom - manufactured and sold by Standard Imaging) 
    Geometric accuracy, uniformity area, contrast (AI plugs), copper plug isotrophy, resolution (MTF). Offers support for all EPID devices: Varian aS500 / aS1000, Elekta iView™ and Siemens. Couch placement analysis is supported.
     
  • Las Vegas EPID Phantoms
    Contrast to noise ratios, spatial resolution, Varian image quality test, and background statistics, TG-58 contrast and spatial resolution test. Includes added TG-58 and Varian QA acceptance criteria for analysis. Couch placement analysis is not supported.
     
  • Standard Imaging QC-3 Phantom
    Contrast value, noise value, uniformity (NEMA), line pairs detected, modulation. Couch placement analysis is supported.

 

PTW EPID Phantom

 

Built-In Automation Features in RIT EPID MLC WITH ISOCENTER

 

RITtrend logo

RIT EPID MLC with Isocenter software includes RITtrend™ – the all-in-one statistical database tracking solution, that stores data for all your department's measurements. Set your own specifications and RITtrend automatically analyzes process control limits on equipment analyzed with RIT software. The multi-source data manager gives you even more control for reporting on your entire medical physics program. RITtrend redefines database recording into a major tool for analysis and record-keeping in your department.
RITtrend™ is a trademark of Radiological Imaging Technology, Inc.

 

 

This product is only available to purchase through PTW.