Siemens ARTIS 2 S Service Manual Page 463

  • Download
  • Add to my manuals
  • Print
  • Page
    / 606
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 462
Quantification
Quantitative Vascular Analysis (QCA, QVA)
AXIOM Artis AXA4-100.620.08.01.02 47 / 104
Artery contour detection
Selecting the arterial segment
You must define the vascular segment you want to examine by drawing in an ap-
proximate center line. If the vessel is curved, a number of points (maximum 28)
can be defined with a single click at the required positions. The line connecting
these points must be within the vascular volume.
The center line must be marked in the direction of blood flow as this influences
the calculation of the extent of stenosis. (The proximal and distal limits of the
obstructed segment are calculated differently.)
To achieve reproducible analysis results, it is advisable to start and end the seg-
ment at a characteristic, conspicuous point. Side branches are suitable for this
purpose.
It can be helpful to enlarge the image region containing the vascular segment
you want to analyze.
Chapter General, “Zooming/panning”
The calibration performed previously on the unzoomed image remains valid.
Page view 462
1 2 ... 458 459 460 461 462 463 464 465 466 467 468 ... 605 606

Comments to this Manuals

No comments