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Fully automated motion correction in first-pass myocardial perfusion MR image sequences

, : Fully automated motion correction in first-pass myocardial perfusion MR image sequences. IEEE Transactions on Medical Imaging 27(11): 1611-1621

This paper presents a novel method for registration of cardiac perfusion magnetic resonance imaging (MRI). The presented method is capable of automatically registering perfusion data, using independent component analysis (ICA) to extract physiologically relevant features together with their time-intensity behavior. A time-varying reference image mimicking intensity changes in the data of interest is computed based on the results of that ICA. This reference image is used in a two-pass registration framework. Qualitative and quantitative validation of the method is carried out using 46 clinical quality, short-axis, perfusion MR datasets comprising 100 images each. Despite varying image quality and motion patterns in the evaluation set, validation of the method showed a reduction of the average right ventricle (LV) motion from 1.26+/-0.87 to 0.64+/-0.46 pixels. Time-intensity curves are also improved after registration with an average error reduced from 2.65+/-7.89% to 0.87+/-3.88% between registered data and manual gold standard. Comparison of clinically relevant parameters computed using registered data and the manual gold standard show a good agreement. Additional tests with a simulated free-breathing protocol showed robustness against considerable deviations from a standard breathing protocol. We conclude that this fully automatic ICA-based method shows an accuracy, a robustness and a computation speed adequate for use in a clinical environment.


PMID: 18955176

DOI: 10.1109/TMI.2008.928918

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Ezoe, Y.; Moriyama, T.; Ogawa, T.; Kakiuchi, T.; Mitsuishi, I.; Mitsuda, K.; Aoki, T.; Morishita, K.; Nakajima, K., 2012: Large-aperture focusing of x rays with micropore optics using dry etching of silicon wafers. Large-aperture focusing of Al K(α) 1.49 keV x-ray photons using micropore optics made from a dry-etched 4 in. (100 mm) silicon wafer is demonstrated. Sidewalls of the micropores are smoothed with high-temperature annealing to work as x-ray mirror...

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Fermin, C.D.; Martin, D.S.; Fermin, C.D., 1995: Expression of S100 beta in sensory and secretory cells of the vertebrate inner ear. We evaluated anti-S100 beta expression in the chick (Gallus domesticus) inner ear and determined that: 1) the monomer anti-S100 beta is expressed differentially in the vestibular and auditory perikarya; 2) expression of S100 beta in the afferent n...

Van Berkel, N., 1967: CO2 for tomatoes. The results are given of trials on the effects of supplementary CO2 on tomatoes with different temperature regimes. CO2 was applied daily from sunrise till 4.30 p.m., except when the ventilating windows were open more than 10 cm. ; treatment conti...

Hartwig, E.C.; Cacciatore, R.; Dunbar, F.P., 1962: M. fortuitum: its identification, incidence, and significance in Florida. American Review of Respiratory Disease 85: 84-91

Jaun-Frutiger, K.; Cazzoli, D.; Müri, Ré.M.; Bassetti, C.L.; Nyffeler, T., 2014: The frontal eye field is involved in visual vector inversion in humans--a theta burst stimulation study. In the antisaccade task, subjects are requested to suppress a reflexive saccade towards a visual target and to perform a saccade towards the opposite side. In addition, in order to reproduce an accurate saccadic amplitude, the visual saccade vecto...

Ishida, J., 1944: Further studies on the hatching enzyme of the freshwater fish, Oryzias latipes. Annotationes Zoologicae Japonenses, 22: 155-164

Steensma, D.P., 2007: Erythropoiesis stimulating agents. Bmj 334(7595): 648-649