MRI: Page 4

Nearly half of outpatient MRI orders are delayed
By Kate Madden Yee
Nearly half of outpatient MRI orders are delayed -- that is, performed more than 10 days from the date chosen by the referring provider, according to recent research.
January 12, 2024
Mri Brain
Cannabis and the brain: What's the long-term impact?
By Philip Ward
Researchers in New Zealand have used MRI to evaluate the effects of cannabis on the aging brain. We caught up with Rebecca Lee for an update.
January 11, 2024
Cannabis Marijuana
Point-of-care decision support reduces unnecessary CT, MRI imaging
By Kate Madden Yee
A point-of-care, web-based clinical decision support tool shows promise for reducing the incidence of inappropriate CT or MR imaging, patients' radiation exposure, and even carbon emissions caused by unnecessary exams.
January 11, 2024
Checklist
MRI shows PTSD sufferers have smaller cerebellums
By Kate Madden Yee
MRI shows that people with post-traumatic stress disorder (PTSD) have a cerebellum about 2% smaller than adults without the condition.
January 10, 2024
Firefighter Explosion 400
Multiparametric MRI helps predict breast cancer treatment outcomes
By Kate Madden Yee
Multiparametric MRI helps predict breast cancer treatment response, according to a recent report.
January 8, 2024
Mri Breast Cancer
MRI helps clinicians assess neural involvement in endometriosis
By Kate Madden Yee
MRI could help clinicians assess neural involvement in endometriosis and help prevent irreversible nerve damage and chronic sensorimotor neuropathy.
January 4, 2024
Spectrum of imaging features of nerves involved in endometriosis in three women. (A) Coronal T1W contrast-enhanced MR image in a 44-year-old woman shows a thickened left sciatic nerve with increased enhancement (solid arrows) and a fibrotic mass (*). The right-side sciatic nerve is normal in appearance (dashed arrows). (B-D) Axial T1W image (without contrast enhancement) with fat saturation (B) in a 43-year-old woman shows a cystic endometriotic lesion with signal hyperintensity (arrow in B). The adjacent left iliacus muscle is asymmetrically thickened due to involvement by endometriosis (* in B). Axial T2-weighted MR image (C) at the same level as B shows T2 shading in the cystic lesion (arrow in C) and a fibrotic mass replacing the iliacus muscle (* in C). Sagittal T2-weighted MR image (D) shows the sacral nerve roots (dashed arrows in D) encased by a fibrotic endometriotic mass (* in D). (E) Axial T2-weighted MR image in a 37-year-old woman shows atrophy of the left iliopsoas (solid oval) and sartorius muscles (dashed oval), both innervated by the femoral nerve. Images and caption courtesy of the RSNA.
Customized support reduces CT, MRI order errors
By Kate Madden Yee
Up to 44% of diagnostic errors are due to laboratory tests and radiology exams that were inappropriately ordered, according to new research.
January 4, 2024
Error Message
MRI reveals how football head injuries may lead to dementia
By Kate Madden Yee
Signs of injury to the brain's white matter called white matter hyperintensities may be strongly tied to markers of dementia in former football players.
December 22, 2023
Football Player Helmet
MRI shows influence of hypertension on cerebral small vessel disease
By Kate Madden Yee
Researchers have used MRI to illuminate the effects of hypertension on cerebral small vessel disease-related brain structures, finding that these effects differ by patient sex and age at diagnosis.
December 21, 2023
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LI-RADS shows low NPV in per-patient liver tumor assessment
By Amerigo Allegretto
Per-patient grouping for liver tumor status based on LI-RADS and treatment response shows low NPV in detecting residual or untreated tumors.
December 20, 2023
Images in a 55-year-old patient show hepatitis C-related cirrhosis and a transjugular intrahepatic portosystemic shunt (dashed arrow), with an undiagnosed tumor (dashed circle) at pretransplant imaging by both readers. Left: Noncontrast-enhanced axial CT image with a treated observation (dashed circles on the left, middle, and right images) and dense lipiodol staining (arrows) in the anterior right liver. Middle: Late arterial phase CT image with no appreciable enhancement. Right: Delayed phase image with no appreciable washout. The lesion was deemed at explant pathology to have 20% necrosis. Image courtesy of RSNA.
Don't get burned: Expert tips and tricks on MRI safety
By Philip Ward
How can MRI staff reduce the impact of radiofrequency-induced heating? Are tattoos and implantable medical devices safe? What are the special risks in 7-tesla MRI? A prize-winning RSNA 2023 exhibit addressed these and other questions.
December 11, 2023
The quench button should still work in cases of power loss and redundancy and automatically self-checks for functionality.
RSI predicts early response to chemotherapy in breast cancer
By Amerigo Allegretto
Restriction spectrum imaging (RSI) is a suitable method for evaluating neoadjuvant therapy response early for breast cancer.
December 8, 2023
Breast Cancer2
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