Only one-third of patients received osteoporosis medication after vertebral augmentation. The incidence of new vertebral fractures fell from 0.519 to 0.076 per person-year after starting medical management (incidence rate ratio 6.79, 95% CI 3.37-15.51), a 6-fold decreased risk.
Percutaneous MWA of T1 RCC showed 76% 10-year overall survival, 85% cancer-specific survival, and 83% local progression-free survival, with stable renal function and low complications.
Integrated model combining emphysema, Pi10, airway branch count, and clinical data detected undiagnosed COPD with AUC 0.83 (95% CI 0.80-0.86) in 5,014 lung screening participants, up from 0.69 for emphysema alone, reducing confirmatory spirometry referrals from 41% to 34%.
FAPI PET/CT showed 93.0% sensitivity vs 76.5% for FDG (p=0.002) in 176 patients with suspected HPB cancers. Nodal accuracy was 86.8% vs 71.1%. Dual-tracer approach did not improve accuracy. Prospective validation needed.
Half-Fourier Acquisition Single-shot Turbo Spin Echo (HASTE/SS-FSE) is a T2-weighted technique using partial k-space sampling to reduce echo train length, enabling faster breath-hold imaging. It balances speed against potential blurring.
Gibbs artifact appears as fine parallel lines adjacent to high-contrast boundaries on MRI, caused by insufficient sampling of high spatial frequencies during Fourier reconstruction. It is most conspicuous on T1-weighted images near fat–water or tissue–CSF interfaces and can mimi…
This educational resource from MRI Questions provides a comprehensive Q&A on MR image contrast, explaining the underlying principles of T1 and T2 relaxation and their influence on signal intensity and tissue differentiation.
Cardiac and respiratory gating synchronize MRI acquisition with physiological motion, reducing artifacts. This educational Q&A from MRI Questions covers ECG gating, respiratory gating, and navigator echoes to improve image quality.
MRI Questions by Elster breaks down field of view (FOV) and k-space fundamentals in a concise Q&A for radiology trainees and physicists.
A concise Q&A resource reviewing the fundamental physics principles of spin echo (SE) pulse sequences in MRI, covering how the 90°-180° RF pulse pair refocuses spin dephasing to generate T1, T2, or proton density tissue contrast.
This MRI physics primer explains that k-space is the raw data matrix from which MR images are reconstructed via Fourier transform, not a direct image. It covers how each point encodes spatial frequency and contrast, demystifying a concept critical for understanding artifacts and…
Fat appears bright on fast spin-echo MRI because multiple 180° refocusing pulses reduce J-coupling-induced signal loss. This fundamental concept helps avoid mistaking fat for pathology on T2-weighted FSE images.
A new Q&A-style primer demystifies b-value selection in diffusion-weighted MRI (DWI), explaining how altering b-values affects signal, lesion conspicuity, and ADC maps.
T2* relaxation is always shorter than T2 because it includes field inhomogeneities; T2 reflects pure spin-spin relaxation. Essential for understanding signal decay and image contrast on MRI.
MRI magnets fall into three main types: permanent (low running cost, weak/limited field), resistive (electrically powered, can be switched off, low field), and superconducting (highest field strength/quality but requires cryogenic cooling and higher siting costs). The choice gov…
This educational explainer breaks down phase encoding, the second spatial dimension in MRI, using intuitive analogies. It is part of a foundational series for residents and technologists wanting a deeper grasp of k-space filling.
A new publicly available tutorial covers steady-state free precession (SSFP) MRI physics in a comprehensive question-and-answer format, from basic gradient-echo principles through advanced clinical applications.
A new educational post from MRI Questions explains repetition time (TR) and echo time (TE) in MRI, covering how they control image contrast (T1, T2, proton density) and sequence selection. Aimed at trainees and technologists.
A new educational review on MRI Questions consolidates safety and physics of gadolinium-based contrast agents, covering stability, NSF risk, and macrocyclic vs. linear agents (exact numbers not reported in source).
The Dixon method exploits the chemical shift between fat and water protons to separate their signals, producing four image sets (water-only, fat-only, in-phase, opposed-phase) from a single acquisition.
Low enterocele and anterior rectocele on defecography
Thoracic endometriosis syndrome should be considered in young women with recurrent catamenial pneumothorax. Rare but treatable, it requires high clinical suspicion and chest imaging correlation. (Eurorad teaching case)
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New Eurorad teaching case details the CT, MRI, and angiographic appearances of hepatic amyloidosis, a rare infiltrative disease, to help radiologists recognize it on multimodality imaging.
The Radiology Assistant published a visual algorithmic guide to characterizing solid renal masses on CT, emphasizing nodular enhancement and heterogeneity to separate renal cell carcinoma from angiomyolipoma and oncocytoma. The update reinforces using >20 HU enhancement as the p…
LearningRadiology.com, a free open-access radiology education website, now offers case-based teaching files, tutorials, and quizzes for trainees and practicing radiologists.
Radiology Masterclass has published a new 'Test Yourself' interactive quiz. Radiology trainees and practitioners can test their knowledge on the blog.
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Osteomas are the most common benign sinonasal tumors, typically appearing as dense, well-circumscribed ivory-like lesions on CT, most often in the frontal sinus. They are usually asymptomatic and found incidentally, but large ones can obstruct sinus drainage.
Radiology Masterclass has released a set of online tutorials covering core radiology topics, available for trainees and practicing radiologists.