Diagnostic Imaging

To cut respiratory motion artifacts on liver MRI, have patients hold their breath at the end of an exhale rather at the end of an inhale. That’s the recommendation of Stanford researchers after testing and comparing the two techniques, and it holds for unenhanced and contrast-enhanced scans.

Kinematic quantitative 4D CT can help differentiate patients with subtalar joint stiffness and chronic ankle instability, reported authors of a March 5 study published in the European Journal of Radiology. The technique may better personalize care for patients with ankle joint pain.

The research team also found combining 4D CT and technetium-99m sestamibi SPECT/CT did not improve diagnostic performance compared to 4D CT alone.

A screen-printed 12-channel pediatric MRI coil produced images with comparable quality and similar signal-to-noise ratio as those produced by a traditional 32-channel coil. Pediatric patients and their providers preferred the screen-printed coil for its flexibility and comfort.

Ultrasound scans of the calcaneus—or the heel bone—were equal to results gathered from dual-energy x-ray absorptiometry (DXA) for assessing bone health, according to new research published online in the March issue of The Journal of the American Osteopathic Association.  

“Our results may help in planning medical injury surveillance systems for future large-scale sports events tailored for each specific sport and may potentially aid in developing preventive efforts before and during competition,” wrote the authors of a Feb. 21 study published in Academic Radiology.

CT angiography (CTA) and transcranial Doppler (TCD) fall short in detecting cerebral vasospasm (CVS) and predicting delayed cerebral ischemia (DCI) in patients with subarachnoid hemorrhage (SAH), reported authors of a recent study published in the inaugural edition of Critical Care Explorations.

A novel PET/CT imaging agent—18F-GP1—produced a high-quality image and yielded a high detection rate for diagnosing acute venous thromboembolism (VTE), reported researchers of a study featured in the February issue of The Journal of Nuclear Medicine.

Stereotactic ablative body radiation therapy (SABR) nearly doubled the overall survival of patients with inoperable stage I lung cancer compared to standard radiotherapy, according to results of a multi-center phase III trial published in the Lancet Oncology.

The FDA has approved nerve stimulation for treatment of episodic and chronic cluster headaches and acute migraines. The findings, detailed in a study published online Feb. 13 in PLOS ONE, could help personalize treatment for PTSD, which according to the National Institute of Mental Health impacts roughly 3.6 percent of U.S. adults per year. 

Breast cancer screening centers may want to consider implementing digital breast tomosynthesis (DBT) and digital mammography (DM) into their practice, according to results of a recent Radiology study. Pairing both modalities significantly increased the sensitivity and specificity of detecting breast cancers.

The imaging technique has proven reliable in detecting neuron loss in people with neurodegenerative illnesses, but now can serve as a marker of dopamine function in those without neurodegenerative disorders. It also provides many advantages over conventional invasive methods or modalities requiring radiation exposure, such as PET.