Clinical News: Page 93

Ultromics inks deal with Pfizer to develop AI technology

By AuntMinnie.com staff writers

U.K. software developer Ultromics has entered an agreement with Pfizer to expedite marketing clearance in the U.S. for its AI algorithm for detecting cardiac amyloidosis.

January 10, 2024

PCCT overcomes image limitations for stenosis quantification on CCTA

By Kate Madden Yee

Photon-counting detector CT (PCCT) with virtual monoenergetic imaging reconstruction shows promise for quantifying stenosis with coronary CT angiography (CCTA).

January 10, 2024

82-year-old man with calcified stenosis in left main artery who underwent coronary CTA by PCCT. Curved multiplanar reformatted images at varying virtual monoenergetic imaging (VMI) levels (40-140 keV) show stenosis at each level. Percent diameter stenosis (PDS) decreased from 92.5% at 40 keV to 53.1% at 140 keV. Extent of calcium blooming artifacts decreased from 100% at 40 keV to 72.3% at 140 keV. Image and caption courtesy of the American Journal of Roentgenology.

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

VR test differentiates between novice, expert ultrasound users

By Amerigo Allegretto

An immersive virtual reality-based test can distinguish between operators with varying levels of thoracic ultrasound skill.

January 9, 2024

Virtual Reality Vr Polygonal Man 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

AI shows promise as first reader in breast cancer screening

By Amerigo Allegretto

A commercial AI system achieved high marks as a first reader in double-reader settings for breast cancer screening.

January 8, 2024

Ai Woman 400 (1)

PET/MRI may help diagnose fevers of unknown origin

PET/MRI imaging shows promise in diagnosing fevers or inflammation of unknown origin and may have advantages over PET/CT.

January 8, 2024

In an example image from the study, F-18 FDG-PET/MRI fusion image (A) and PET 3D image (D) show a moderately increased FDG uptake in muscles around hip joints. T2 IDEAL WATER image (B) shows increased T2 signal; LAVA WATER (C) image shows mild enhancement in these muscles. Findings were suspicious of myositis, which was histopathologically confirmed. Image courtesy of the European Journal of Radiology.

PET reveals patterns underlying cognitive decline in patients with DLB

F-18 FDG-PET imaging in patients with dementia with Lewy bodies (DLB) has shown that brain hypo- and hypermetabolism may have different affects on cognition.

January 5, 2024

DLB-hypo (hypometabolic changes in dementia with Lewy bodies) was characterized by relatively reduced bilateral metabolic activity (color-coded blue) in the bilateral parietal, temporal, and occipital cortices, while DLB-hyper (hypermetabolic changes in dementia with Lewy bodies) showed relatively increased metabolic activity (color-coded red) in the cerebellum, bilateral sensorimotor, orbitofrontal, insular, and parahippocampal cortices, bilateral putamen, globus pallidum, hippocampus, and amygdala. Image courtesy of npj Parkinson’s Disease.

FAPI-PET outperforms FDG-PET in diagnosing pancreatic cancer

F-18 FAPI-PET/CT is superior to F-18 FDG-PET/CT for diagnosing and staging patients with pancreatic cancer.

January 5, 2024

Typical PET (top), PET/CT (middle), and CT and MR (bottom) images of primary tumor obtained using both radiotracers in representative patients (A and B). Tumor is marked by arrows. DWI = diffusion-weighted imaging. Image courtesy of the Journal of Nuclear Medicine.

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

Standardized reporting categorizes breast cancer detection methods

By Amerigo Allegretto

A standardized system can help radiologists accurately categorize the method of detection when performing image-guided breast biopsies.

January 4, 2024

Women Cancer Patient 400 (1)

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