Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cardiac and Respiratory Self-Gating in Radial MRI using an Adapted
  Singular Spectrum Analysis (SSA-FARY)   Cardiac Magnetic Resonance Imaging (MRI) is time-consuming and error-prone.
To ease the patient's burden and to increase the efficiency and robustness of
cardiac exams, interest in methods based on continuous steady-state acquisition
and self-gating has been growing in recent years. Self-gating methods extract
the cardiac and respiratory signals from the measurement data and then
retrospectively sort the data into cardiac and respiratory phases. Repeated
breathholds and synchronization with the heart beat using some external device
as required in conventional MRI are then not necessary. In this work, we
introduce a novel self-gating method for radially acquired data based on a
dimensionality reduction technique for time-series analysis (SSA-FARY).
Building on Singular Spectrum Analysis, a zero-padded, time-delayed embedding
of the auto-calibration data is analyzed using Principle Component Analysis. We
demonstrate the basic functionality of SSA-FARY using numerical simulations and
apply it to in-vivo cardiac radial single-slice bSSFP and Simultaneous
Multi-Slice radiofrequency-spoiled gradient-echo measurements, as well as to
Stack-of-Stars bSSFP measurements. SSA-FARY reliably detects the cardiac and
respiratory motion and separates it from noise. We utilize the generated
signals for high-dimensional image reconstruction using parallel imaging and
compressed sensing with in-plane wavelet and (spatio-)temporal total-variation
regularization.

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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
2
The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
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The categories of this paper are: gr-qc