Parametric imaging of blood flow
The calculation of functional images was based on recorded fluoroscopic sequences. The Fourier coefficients of the first harmonic were calculated for each matrix element, and the amplitude and phase values were used for the generation of two synthetic images. The amplitude image demonstrated the max...
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| Published in | European journal of radiology Vol. 8; no. 1; p. 24 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Ireland
01.02.1988
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| Subjects | |
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| Abstract | The calculation of functional images was based on recorded fluoroscopic sequences. The Fourier coefficients of the first harmonic were calculated for each matrix element, and the amplitude and phase values were used for the generation of two synthetic images. The amplitude image demonstrated the maximum change in opacification with high image contrast. Phantom studies showed that a high correlation exists between the inverse phase differences and flow. The clinical application of the Fourier method revealed substantial additional information to conventional angiography in one of ten patients. While the morphological evaluation demonstrated no significant stenosis, the functional images showed a residual stenosis. |
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| AbstractList | The calculation of functional images was based on recorded fluoroscopic sequences. The Fourier coefficients of the first harmonic were calculated for each matrix element, and the amplitude and phase values were used for the generation of two synthetic images. The amplitude image demonstrated the maximum change in opacification with high image contrast. Phantom studies showed that a high correlation exists between the inverse phase differences and flow. The clinical application of the Fourier method revealed substantial additional information to conventional angiography in one of ten patients. While the morphological evaluation demonstrated no significant stenosis, the functional images showed a residual stenosis. |
| Author | Strauss, L G Clorius, J H Menges, W Busch, H P Lorenz, W J Georgi, M |
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| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/3281836$$D View this record in MEDLINE/PubMed |
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| Snippet | The calculation of functional images was based on recorded fluoroscopic sequences. The Fourier coefficients of the first harmonic were calculated for each... |
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| SubjectTerms | Algorithms Angiography - methods Fluoroscopy Fourier Analysis Humans Image Processing, Computer-Assisted Radiographic Image Enhancement - methods Subtraction Technique |
| Title | Parametric imaging of blood flow |
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