ArticleMagnetic resonance in medicine2021
Free-breathing radial imaging using a pilot-tone radiofrequency transmitter for detection of respiratory motion.
Article in Magnetic resonance in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
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Who cites it
22 citing papers in PubMed, 34 citations in OpenAlex.
- Respiratory Motion Management in Abdominal MRI: Revisiting the Gap Between Technical Advances and Clinical Translation.Magnetic resonance in medicine · 2026Review
- Head Motion Correction Based on Pilot Tone Signals in MRI: A Referenceless Method.IEEE transactions on medical imaging · 2026Article
- Prospective Respiratory Motion Correction Using Machine Learning and Pilot Tone (PROMPT) in Cardiac MRI.Magnetic resonance in medicine · 2026Article
- 4D Flow MRI at 0.6 T-Self-Gating Versus Camera-Based Respiratory Binning.Bioengineering (Basel, Switzerland) · 2026Article
- Free-Breathing Hybrid Technique for Simultaneous Morphological and Quantitative Abdominal Imaging at 0.55 T.Investigative radiology · 2026Article
- Contactless cardiac gating at 0.55T using high-amplitude pilot tone with interference cancellation (HAPTIC).Magnetic resonance in medicine · 2025Article
- Advantages of BioMatrix respiratory gating in free-breathing three-dimensional magnetic resonance cholangiopancreatography: a prospective comparative study.Insights into imaging · 2025Article
- Self-gated free-running 5D whole-heart MRI using blind source separation for automated cardiac motion extraction.Magnetic resonance in medicine · 2025Article
- MRI Retrospective Respiratory Gating and Cardiac Sensing by CW Doppler Radar: A Feasibility Study.IEEE transactions on bio-medical engineering · 2025Article
- Quantitative Characterization of Respiratory Patterns on Dynamic Higher Temporal Resolution MRI to Stratify Postacute Covid-19 Patients by Cardiopulmonary Symptom Burden.Journal of magnetic resonance imaging : JMRI · 2024Article
- Beat Pilot Tone (BPT): Simultaneous MRI and RF motion sensing at arbitrary frequencies.Magnetic resonance in medicine · 2024Article
- Free-breathing MRI techniques for fat and RMagma (New York, N.Y.) · 2024Review
- Preliminary Experience with Three Alternative Motion Sensors for 0.55 Tesla MR Imaging.Sensors (Basel, Switzerland) · 2024Article
- Motion-compensated image reconstruction for improved kidney function assessment using dynamic contrast-enhanced MRI.NMR in biomedicine · 2024Article
- Rapid motion estimation and correction using self-encoded FID navigators in 3D radial MRI.Magnetic resonance in medicine · 2024Article
- New clinical opportunities of low-field MRI: heart, lung, body, and musculoskeletal.Magma (New York, N.Y.) · 2024Review
- Breast MRI in patients with implantable loop recorder: initial experience.European radiology · 2024Article
- Cardiac and respiratory motion extraction for MRI using pilot tone-a patient study.The international journal of cardiovascular imaging · 2024Article
- Free-Breathing Liver Fat, R₂* and B₀ Field Mapping Using Multi-Echo Radial FLASH and Regularized Model-Based Reconstruction.IEEE transactions on medical imaging · 2023Article
- External Hardware and Sensors, for Improved MRI.Journal of magnetic resonance imaging : JMRI · 2023Review
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
Abstract
purposeTo describe an approach for detection of respiratory signals using a transmitted radiofrequency (RF) reference signal called Pilot-Tone (PT) and to use the PT signal for creation of motion-resolved images based on 3D stack-of-stars imaging under free-breathing conditions.
methodsThis work explores the use of a reference RF signal generated by a small RF transmitter, placed outside the MR bore. The reference signal is received in parallel to the MR signal during each readout. Because the received PT amplitude is modulated by the subject's breathing pattern, a respiratory signal can be obtained by detecting the strength of the received PT signal over time. The breathing-induced PT signal modulation can then be used for reconstructing motion-resolved images from free-breathing scans. The PT approach was tested in volunteers using a radial stack-of-stars 3D gradient echo (GRE) sequence with golden-angle acquisition.
resultsRespiratory signals derived from the proposed PT method were compared to signals from a respiratory cushion sensor and k-space-center-based self-navigation under different breathing conditions. Moreover, the accuracy was assessed using a modified acquisition scheme replacing the golden-angle scheme by a zero-angle acquisition. Incorporating the PT signal into eXtra-Dimensional (XD) motion-resolved reconstruction led to improved image quality and clearer anatomical depiction of the lung and liver compared to k-space-center signal and motion-averaged reconstruction, when binned into 6, 8, and 10 motion states.
conclusionPT is a novel concept for tracking respiratory motion. Its small dimension (8 cm), high sampling rate, and minimal interaction with the imaging scan offers great potential for resolving respiratory motion.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.