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2d image navigators inavs  (Respiratory Motion)

 
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    Respiratory Motion 2d image navigators inavs
    2d Image Navigators Inavs, supplied by Respiratory Motion, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/2d+inavs/2d+image+inavs+navigators/pm41431231-30-16-13
    Average 86 stars, based on 1 article reviews
    2d image navigators inavs - by Bioz Stars, 2026-09
    86/100 stars

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    Related Articles

    other:

    Article Title: Whole-heart non-rigid motion corrected coronary MRA with autofocus virtual 3D iNAV.
    Article Snippet: 2D iNAVs are used to estimate the FH and RL respiratory motion in a beat-to-beat fashion, by maximizing the normalized cross-correlation of a rectangular shaped template placed over the bottom half of the heart, with end-expiration being the reference position [30].

    Article Title: Free-Breathing Multi-Phase Whole-Heart Coronary MRA Using Image-Based Navigators and 3D Cones Imaging
    Article Snippet: Respiratory Motion Compensation and Image Reconstruction The leading and trailing 2D iNAVs are processed to estimate S/I and A/P (or L/R) respiratory translation of the heart.

    Article Title: Image navigator–based, automated coronary magnetic resonance angiography for the detection of coronary artery stenosis
    Article Snippet: Before reconstruction, the inferior-superior and left-right respiratory motion is estimated from the 2D iNavs.

    Imaging:

    Article Title: Motion-corrected 3D whole-heart water-fat high-resolution late gadolinium enhancement cardiovascular magnetic resonance imaging
    Article Snippet: .. Compared to previously proposed approaches for free-breathing 3D water/fat LGE imaging [ , ] that rely on diaphragmatic navigator gating to compensate for respiratory motion, our framework makes use of 2D iNAVs to directly track the respiratory motion of the heart, enabling 100% respiratory scan efficiency and a predictable scan time that depends only on the subjects’ heart rate and the volumetric coverage required. ..



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    Image Search Results


    Summary of the iNav-AUTO CMRA study protocol in comparison to the two previous non–contrast-enhanced multi-center studies assessing the diagnostic accuracy of CMRA.

    Journal: Journal of Cardiovascular Magnetic Resonance

    Article Title: Image navigator–based, automated coronary magnetic resonance angiography for the detection of coronary artery stenosis

    doi: 10.1016/j.jocmr.2024.101097

    Figure Lengend Snippet: Summary of the iNav-AUTO CMRA study protocol in comparison to the two previous non–contrast-enhanced multi-center studies assessing the diagnostic accuracy of CMRA.

    Article Snippet: Respiratory motion correction , Right hemidiaphragmatic navigator gating , Abdominal belt in combination with right hemidiaphragmatic navigator gating , 2D image navigator (iNav).

    Techniques: Comparison, Diagnostic Assay, Software

    Appearance of the iNav-AUTO CMRA acquisition planning. The image slab including oversampling (yellow) and 2D image navigator (iNav) (blue) are automatically determined by a deep-learning–based tool which is part of work-in-progress software (Siemens Healthineers, cardiac dot companion). iNav-AUTO CMRA image navigator–based, automated coronary magnetic resonance angiography, 2D two-dimensional

    Journal: Journal of Cardiovascular Magnetic Resonance

    Article Title: Image navigator–based, automated coronary magnetic resonance angiography for the detection of coronary artery stenosis

    doi: 10.1016/j.jocmr.2024.101097

    Figure Lengend Snippet: Appearance of the iNav-AUTO CMRA acquisition planning. The image slab including oversampling (yellow) and 2D image navigator (iNav) (blue) are automatically determined by a deep-learning–based tool which is part of work-in-progress software (Siemens Healthineers, cardiac dot companion). iNav-AUTO CMRA image navigator–based, automated coronary magnetic resonance angiography, 2D two-dimensional

    Article Snippet: Respiratory motion correction , Right hemidiaphragmatic navigator gating , Abdominal belt in combination with right hemidiaphragmatic navigator gating , 2D image navigator (iNav).

    Techniques: Software

    Illustration of the protocol for whole-heart free-breathing sub-millimeter iNav-AUTO CMRA acquisition. (A) Acquisition of undersampled CMRA images. 2D image navigators (iNav) to mitigate respiratory-induced motion and to allow 100% respiratory scan efficiency precedes acquisition with 3D variable density, spiral-like Cartesian trajectory with golden angle between spiral-like interleaves (VD-CASPR). (B) Motion correction. Before reconstruction, the inferior-superior and left-right respiratory motion is estimated from the 2D iNavs. The data are then allocated into respiratory bins. Soft-gated iterative SENSE is used to reconstruct each respiratory bin. Non–rigid 3D motion is then estimated from these respiratory bin datasets via image registration. (C) Image reconstruction. 3D non–rigid motion-corrected iterative SENSE undersampled reconstruction with patch–based low-rank denoising (PROST) is then used to generate the final CMRA image. iNav-AUTO CMRA image navigator–based, automated coronary magnetic resonance angiography, 2D two-dimensional, 3D three-dimensional, SENSE sensitivity encoding, ECG electrocardiogram, FATSAT; fat saturation.

    Journal: Journal of Cardiovascular Magnetic Resonance

    Article Title: Image navigator–based, automated coronary magnetic resonance angiography for the detection of coronary artery stenosis

    doi: 10.1016/j.jocmr.2024.101097

    Figure Lengend Snippet: Illustration of the protocol for whole-heart free-breathing sub-millimeter iNav-AUTO CMRA acquisition. (A) Acquisition of undersampled CMRA images. 2D image navigators (iNav) to mitigate respiratory-induced motion and to allow 100% respiratory scan efficiency precedes acquisition with 3D variable density, spiral-like Cartesian trajectory with golden angle between spiral-like interleaves (VD-CASPR). (B) Motion correction. Before reconstruction, the inferior-superior and left-right respiratory motion is estimated from the 2D iNavs. The data are then allocated into respiratory bins. Soft-gated iterative SENSE is used to reconstruct each respiratory bin. Non–rigid 3D motion is then estimated from these respiratory bin datasets via image registration. (C) Image reconstruction. 3D non–rigid motion-corrected iterative SENSE undersampled reconstruction with patch–based low-rank denoising (PROST) is then used to generate the final CMRA image. iNav-AUTO CMRA image navigator–based, automated coronary magnetic resonance angiography, 2D two-dimensional, 3D three-dimensional, SENSE sensitivity encoding, ECG electrocardiogram, FATSAT; fat saturation.

    Article Snippet: Respiratory motion correction , Right hemidiaphragmatic navigator gating , Abdominal belt in combination with right hemidiaphragmatic navigator gating , 2D image navigator (iNav).

    Techniques: