2009
DOI: 10.1002/mrm.22176
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PROMO: Real‐time prospective motion correction in MRI using image‐based tracking

Abstract: Artifacts caused by patient motion during scanning remain a serious problem in most MRI applications. The prospective motion correction technique attempts to address this problem at its source by keeping the measurement coordinate system fixed with respect to the patient throughout the entire scan process. In this study, a new image-based approach for prospective motion correction is described, which utilizes three orthogonal two-dimensional spiral navigator acquisitions, along with a flexible image-based trac… Show more

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Cited by 352 publications
(403 citation statements)
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“…Techniques using PROPELLER or spiral sequences correct patient motion with alternative data acquisition strategies [1,2]. Navigator echos are added to MR sequences to compensate retrospectively and prospectively patient's motion during the scan [3,4,5]. Another MR based motion correction method was introduced by Ooi et al [6], using the response of active markers in form of small coils attached to the forehead of the patient.…”
Section: Introductionmentioning
confidence: 99%
“…Techniques using PROPELLER or spiral sequences correct patient motion with alternative data acquisition strategies [1,2]. Navigator echos are added to MR sequences to compensate retrospectively and prospectively patient's motion during the scan [3,4,5]. Another MR based motion correction method was introduced by Ooi et al [6], using the response of active markers in form of small coils attached to the forehead of the patient.…”
Section: Introductionmentioning
confidence: 99%
“…Adaptive motion correction techniques 55,69,83 and real-time navigators 93 have the potential to mitigate patient motion artifacts. MRI susceptibility effects increase linearly with field strength, specifically in iron-rich areas in the brain, which causes increased susceptibility artifacts and signal loss that could affect the medial temporal lobe in particular.…”
Section: -T Mri Limitations and Challengesmentioning
confidence: 99%
“…Using new techniques, such as propeller MRI, it has become possible to oversample k space and, thereby, compensate for motion and allow follow-up MR imaging without sedation (74,75). As an alternative to these retrospective motion-correction techniques, it is also possible to prospectively correct motion in structural imaging and single-voxel spectroscopy using image-based navigators (76)(77)(78). In patients with more advanced leukodystrophies, these advances may allow for imaging without sedation and thereby give insight into the more advanced stages of disease.…”
Section: Recent Applications Of Advanced Mr Technologymentioning
confidence: 99%