QLVAPlus
Quantitative Left-Ventricular Angiography

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QLVAPlus is a program for the quick, convenient and accurate quantitation of left-ventricular volumes and wall motion from left ventriculogram taken in the 30 degree RAO projection. It uses the Stanford radial method for wall-motion analysis.

Screen captured from an actual display (1/2 size)

QLVAPlus Features:

  1. QLVAPlus automatically optimizes itself for computer display resolution settings.
  2. Images of any resolution can be analyzed.
There is an Auto mode where brightness and contrast are automatically adjusted order to optimize image appearance.
  1. The following data can be specified by the operator:
    1. Heart Rate during angiography for the calculation of Cardiac Output.
    2. Height and Weight for the calculation of Body Surface Area.
    3. Calibration object size.
  2. Pushbutton controls are used to step through the measurement process. Data can be acquired in any order, at any time. Each of these steps may be repeated as often as necessary:
    1. The View button allows unobstructed viewing of the angiogram.
    2. The Calibrate button allows the user the specify two points on a calibration object such as a grid or sphere.
    3. The Trace E.D. button saves the end-diastolic image and allows the user to trace or edit the end-diastolic contour.
    4. The Trace E.S. button saves the end-systolic image and allows the user to trace or edit the end-systolic contour.
      End-diastolic and end-systolic contours are traced over the live image by clicking the mouse at several points around the border of the left ventricle. A smooth cubic-spline curve is fitted to the points as they are entered. Points can be added, deleted or moved in any order at any time. Images with the contour superimposed can be scrolled backward and forward to determine the best possible fit - this is especially important when tracing the end-systolic image. 
    5. The Print Report button will cause a complete QLVA report to be printed with all of the data shown above, plus end-diastolic and end-systolic images and Patient, Study, Series and Image information.
    6. The E-mail button will cause a complete report, including images, to be sent by e-mail.
  3. All common volumetric parameters are calculated and displayed. Volumes are calculated using the Dodge-Sandler Area-Length method.
  4. Regional and global wall motion parameters are calculated and displayed.
  5. A standardized wall motion plot allows convenient inspection of detailed wall-motion information.

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Configuration

Fine Print:

  1. QLVAPlus runs on just about any IBM PC-compatible computer with Microsoft Windows 2000,  Windows XP (32 bit) and Windows 7 (32 bit). The QLVAPlus package consists of an installation CD, a user's manual and an USB copy-protection device.

  2. QLVAPlus will be delivered with no shipping fee by FedEx. California residents must pay sales tax. Overseas customers must pay any import duties upon receipt.

  3. All Sanders Data Systems software products are covered by a 90-day, no-questions-asked warranty. Just return the software and copy-protection device within 90 days for a full refund.

 

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