Name
Title | ||
|---|---|---|
In-Vitro Validation of a Novel Model-Based Approach to the Measurement of Arterial Blood Flow Waveforms from Dynamic Digital X-ray Images |
Abstract | ||
|---|---|---|
We have developed a blood flow waveform shape model using principal component analysis (PCA) and applied this to our existing
concentration-distance curve matching technique for the extraction of flow waveforms from dynamic digital x-ray images. The
aim of the study was to validate the system using a moving-vessel flow phantom. Instantaneous recording of flow from an electromagnetic
flow meter (EMF) provided the “gold standard” measurement. A model waveform was constructed from 256 previously recorded waveforms
from the EMF using PCA. Flow waveforms were extracted from parametric images derived from dynamic x-ray data by finding the
parameters of the shape model that minimized the mean value of our cost function. The computed waveforms were compared to
the EMF recordings. The model-based approach produced narrower limits of agreement with the EMF data than our previously developed
algorithms and, in the presence of increasing noise in the parametric images, it out-performed the other algorithms.
|
Year | DOI | Venue |
|---|---|---|
2001 | 10.1007/3-540-45468-3_35 | Medical Image Computing and Computer-Assisted Intervention |
Keywords | Field | DocType |
flow waveform,moving-vessel flow,shape model,model waveform,blood flow waveform shape,computed waveform,emf data,emf recording,in-vitro validation,electromagnetic flow meter,novel model-based approach,dynamic digital x-ray images,parametric image,arterial blood flow waveforms,blood flow,cost function,principal component analysis,flow measurement,whole blood,gold standard | Computer vision,Magnetic flow meter,Blood flow,Computer science,Curve matching,Imaging phantom,Flow (psychology),Waveform,Parametric statistics,Artificial intelligence,Principal component analysis | Conference |
ISBN | Citations | PageRank |
3-540-42697-3 | 2 | 1.46 |
References | Authors | |
1 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Kawal Rhode | 1 | 150 | 21.01 |
| Gareth Ennew | 2 | 2 | 1.46 |
| Tryphon Lambrou | 3 | 67 | 12.93 |
| Alexander M Seifalian | 4 | 72 | 8.65 |
| David J. Hawkes | 5 | 4262 | 470.26 |