ArticleMagma (New York, N.Y.)2018
Simultaneous slice excitation for accelerated passive marker tracking via phase-only cross correlation (POCC) in MR-guided needle interventions.
Article in Magma (New York, N.Y.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Sub-millisecond 2D MRI of the vocal fold oscillation using single-point imaging with rapid encoding.Magma (New York, N.Y.) · 2022Article
- GantryMate: A Modular MR-Compatible Assistance System for MR-Guided Needle Interventions.Tomography (Ann Arbor, Mich.) · 2019Article
- Simultaneous slice excitation for accelerated passive marker tracking via phase-only cross correlation (POCC) in MR-guided needle interventions.Magma (New York, N.Y.) · 2018Article
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6 authors.
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Abstract
objectiveTo accelerate a passive tracking sequence based on phase-only cross correlation (POCC) using simultaneous slice excitation.
methodsFor magnetic resonance (MR)-guided biopsy procedures, passive markers have been proposed that can be automatically localized online using a POCC-based tracking sequence. To accelerate the sequence, a phase-offset multiplanar (POMP) excitation technique was implemented to acquire tracking images. In a phantom experiment, the POMP-POCC sequence was tested and compared with the sequential non-accelerated version in terms of duration and accuracy. Further, technical feasibility of the POMP-POCC sequence was tested in a patient undergoing a prostate biopsy.
resultsThe temporal resolution of the POMP-POCC tracking sequence is accelerated by 33% compared with the sequential approach. In phantom experiments, the POMP-POCC and sequential sequences yielded the same targeting accuracy of 1.6 ± 0.7 mm. Technical proof of concept of the new sequence could be demonstrated in a successful in vivo prostate biopsy.
conclusionPOMP-POCC tracking can substantially reduce the duration of localization of passive markers in MR-guided needle interventions without compromising targeting accuracy.
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