Hardware & Acquisition Tech
Helium-Free MRI Magnets: Real Reliability and Field Stability
A conventional 1.5T or 3T superconducting MRI magnet sits on roughly 1,500 liters of liquid helium — give or take the bore and…
Hardware & Acquisition Tech
Parallel transmission in 7T MRI: how pTx controls RF fields
At 7 Tesla, the challenge is no longer simply generating enough signal to see the brain or another organ with greater detail. The…
Hardware & Acquisition Tech
Silent MRI sequences: the trade-off between noise and speed
A conventional MRI examination can expose the patient to 80–110 dB(A) of acoustic noise. High-field protocols can reach peaks…
Hardware & Acquisition Tech
HTS RF Coils: Why Superconducting Hardware Matters Now
A high temperature superconducting RF coil can deliver a 50% to 500% signal-to-noise ratio improvement over conventional copper…
Hardware & Acquisition Tech
Gradient Coil Drift: The Case of the Ruined DTI Scan
Every diffusion tensor imaging protocol is, in effect, a stress test of the gradient system. A demanding acquisition with many…
Hardware & Acquisition Tech
Simultaneous PET-MRI: clinical necessity or luxury?
Simultaneous PET-MRI solves a specific physical problem: PET and MRI measure different signals while the patient moves. If the…
Hardware & Acquisition Tech
Dielectric Pads at 7T: Placement Rules for Tomorrow's Scan
At 7T, the same increase in magnetic field strength that makes ultra-high-field MRI attractive for neuroimaging also makes the…
Hardware & Acquisition Tech
Optical motion tracking: calibration steps for tomorrow's scans
A head can move by less than a millimeter and still compromise a high-resolution MRI study. At conventional clinical resolution…
Hardware & Acquisition Tech
MRI head coils: when to use 32 versus 64 channels
For anyone designing a structural neuroimaging protocol, the marketing promise is seductive: more channels, more signal, clearer…
Hardware & Acquisition Tech
Do metamaterials actually boost MRI signal-to-noise ratio?
Scan a deep pelvic field on a 3T scanner and the signal you actually pull out of the tissue is a fraction of what the magnet's…
Hardware & Acquisition Tech
Helium-free MRI scanners: are they ready for clinical use?
Every hospital that's installed a 1.5T MRI in the last twenty years knows the figure by heart: roughly 1,500 to 2,000 liters of…
Hardware & Acquisition Tech
Parallel transmit 7T MRI: clinical reality or research tool?
Nine out of thirty-one. That is the number that should make every epilepsy imaging program take a second look at what 7T MRI is…
Hardware & Acquisition Tech
Prospective motion correction: the new standard for 7T MRI
At 7T, head motion is not a minor nuisance added to an otherwise stable acquisition. It perturbs the coordinate system in which…
Hardware & Acquisition Tech
RF interference that blinded a hybrid PET-MRI scan
Consider a composite acceptance-test scenario. The hybrid system has passed installation, the RF cage has been signed off, and…
News
Beyond the CAGR: Engineering Realities of MRgFUS Integration in Clinical Suites
5% long-term CAGR projection for Magnetic Resonance Imaging Guided & Focused Ultrasound Devices, distributed via EIN News on…
Hardware & Acquisition Tech
Helium-free MRI magnets: ready to replace liquid helium?
A conventional superconducting MRI system stores roughly 1,500 liters of liquid helium in an open bath around the magnet coils. A…