Philips Azurion - References; 10.6 LVA; RVA

Vessel segment length accuracy is specied f
or distances up to 50 mm between user-dened markers
on an unforeshortened view of a vessel placed in the isocenter, using automac calibraon.
NOTE Using an inaccurate calibraon factor (due to, for example, foreshortening, inaccurate
posion of the calibraon object, or calibraon on a small diameter catheter) may lead to
addional errors in measured lengths and diameters.
QVA
QVA Analysis Results Accuracy (S
ystemac Error) Precision (Random Error)
Vessel diameter < 0.2 mm (for diameters ≤ 20 mm)
< 1% (for diameters > 20 mm)
< 0.2 mm
Vessel segment length < 1.0 mm < 2.0 mm
Vessel diameter accuracy is specied f
or measurements performed on a vessel placed in the isocenter,
using automac calibraon.
Vessel segment length accuracy is specied for distances up to 50 mm between user-dened markers
on an unforeshortened view of a vessel placed in the isocenter, using automac calibraon.
NOTE Using an inaccurate calibraon factor (due to, for example, foreshortening, inaccurate
posion of the calibraon object, or calibraon on a small diameter catheter) may lead to
addional errors in measured lengths and diameters.
References
Computaons in 2D-QA are performed according to methods described in medical literature.
Author Arcle
Reiber, J.H.C. et al. On-line quanc
aon of coronary angiograms with the DCI system. MedicaMundi, 34, no.
3, 1989. pp. 89-98.
Van der Zwet P.M.J. et al. A new approach for the automated denion of path lines in digized coronary angio-
grams. Int. J. Cardiac Imaging, 5, no. 2-3, 1990. pp. 75-83.
Van der Zwet, P.M.J. et al. An on-line system for the quantave analysis of coronary arterial segments. Computers in
Cardiology, 1990.
Austen, W.G. et al. A reporng system on paents evaluated for coronary artery disease. Report of the Ad Hoc
Commiee for grading of coronary artery disease. Council on Cardio-vascular Surgery,
American Heart Associaon. Circulaon 51, no. 2, 1975. pp. 7-40.
Reiber, J.H.C. et al. Assessment of dimensions and image quality of coronary contrast catheters from cine an-
giograms. Catheterizaon and Cardio-vascular Diagnosis, 11, 1985, pp. 521-531.
10.6 LVA / RVA
The L
VA and RVA applicaons have similar tasks, and they are described together in the following
secons.
Addional steps that are required for Biplane LVA and Biplane RVA are indicated where appropriate.
Le Ventricle Analysis (LVA)
You use LVA to establish end diastolic (ED) and end systolic (ES) contours of the le ventricle, to
determine ventricular volumes and wall moon. You can create, store and print reports of the analysis.
2D Quantave Analysis (Opon) LVA / RVA
Azurion Release 1.2 Ins
trucons for Use 167 Philips Healthcare 4522 203 52421