InSightec set to bring ExAblate to Japan

AuntMinnie.com staff writers

Nov 24, 2014

MR-guided focused ultrasound (MRgFUS) developer InSightec has received approval from Japan's Ministry of Health, Labor, and Welfare for its ExAblate MRgFUS system.

The clearance covers the use of ExAblate for pain palliation caused by bone metastases and for advanced treatment of uterine fibroids, according to InSightec shareholder Elbit Imaging. GE Healthcare holds the approval for ExAblate and will distribute the system in Japan, Elbit said.

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T2-weighted MRI shows promise for body composition analysis

By Kate Madden Yee

Using deep learning with T2-weighted MR imaging is a feasible way to assess patients' body composition, researchers have reported.

February 21, 2025

Fat Tissue Adipocytes

Are white-matter hyperintensities found on MRI biomarkers for TBI?

By Kate Madden Yee

White-matter hyperintensities found on high-resolution FLAIR images on 3-tesla MRI aren't necessarily biomarkers for mild traumatic brain injury (TBI).

February 19, 2025

2025 02 19 Ajr Tanwar Figure2 Thumbnail

7-minute shoulder MRI scans are feasible

A commercially available deep-learning (DL) algorithm can enable high quality seven-minute shoulder MRI exams.

February 18, 2025

Images in an 18-year-old man with recurrent dislocations of the right shoulder. (A, B) Unenhanced coronal, (C) axial, and (D, E) sagittal deep learning super-resolution threefold parallel imaging -- accelerated turbo spin-echo MRI scans were obtained at 3-tesla field strength. (A) Coronal T2-weighted fat-suppressed (FS) and (B) coronal proton density (PD)-weighted MRI scans show a nondisplaced superior labral tear (arrows). (C) Axial proton density-weighted fat-suppressed, (D) sagittal T2-weighted fat-suppressed, and (E) sagittal T1-weighted MRI scans show continuation into a nondisplaced anteroinferior labral tear (arrows). All seven readers correctly diagnosed the arthroscopy-validated findings. (F) An arthroscopic photograph shows the anteroinferior labral tear (arrow). Image and caption courtesy of the RSNA.

New AI model successfully segments anatomic structures in MR images

By Kate Madden Yee

A Swiss research team has developed and tested an AI model that automatically segments anatomic structures on MR images independent of sequence.

February 18, 2025

2025 02 18 Radiology D Antonoli Figure1 Thumbnail

Are low-field MRI units effective for neuroradiologic imaging?

By Kate Madden Yee

Are low-field MRI units effective for neuroradiologic imaging? Perhaps, say researchers from the University of Michigan in Ann Arbor.

February 14, 2025

2025 02 13 Radio Graphics Kelsey Figure1 Thumbnail

fMRI reveals a brain circuit for creativity

By Kate Madden Yee

Functional MRI (fMRI) has revealed a brain circuit for creativity, researchers from Mass General Brigham in Boston have reported.

February 13, 2025

MRI model predicts pathologic features of liver cancer

A new scoring model for MRI exams shows potential for improving the assessment of early recurrence in patients with hepatocellular carcinoma.

February 11, 2025

2025 02 11 I Score Thumbnail

Wash. bill would loosen supervision rules for RTs, MRI techs

By AuntMinnie.com staff writers

The state of Washington is considering a bill authorizing diagnostic radiologic technologists (RTs), therapeutic RTs, and MRI technologists to perform intravenous contrast procedures under "general supervision."

February 7, 2025

Signing Contract Legislation

Race influences headache diagnosis in children presenting to the ED

By Kate Madden Yee

Black or Hispanic children are less likely than their white peers to be diagnosed with migraine via MR imaging in pediatric emergency departments (ED).

February 5, 2025

Am 2016 09 27 14 38 54 774 Diverse Children 400

IMV: MRI exam mix shifts from outpatient to hospital settings

By Davin Korstjens

In 2024, the percentage of MRI procedures performed in an outpatient setting decreased by five percentage points to 66% of total MR procedures.

February 3, 2025

Mri Machine Screens

Ferumoxytol-enhanced MRA is safe for chronic kidney disease patients

By Kate Madden Yee

Ferumoxytol-enhanced MR angiography (MRA) appears to be safe for chronic kidney disease patients, researchers have reported.

January 29, 2025

Contrast Injector

Ultrafast MRI exam bests standard MRI for classifying breast cancers

By Amerigo Allegretto

An ultrafast MRI-based radiomics exam performs just as well as standard MRI and isn’t dependent on radiologist experience.

January 28, 2025

Ultrafast and standard MRI in a 30-year-old woman with triple-negative invasive ductal carcinoma. (A) Ultrafast MRI taken 16.8 seconds after contrast agent injection. (B) Standard MRI taken 58.8 seconds after contrast agent injection. Both images show an oval-shaped, irregular marginated, rim-enhancing mass in the left outer breast. For 3D tumor segmentation, the entire enhanced tumor margins were drawn from top to bottom of each tumor in axial views of U2 phase postcontrast ultrafast MRI and the initial phase postcontrast standard MRI. Among the 14 ultrafast images, U1 is the first phase in which the signal intensity of the hotspot region of interest of the tumor is 10% higher than the average signal intensity of unenhanced images. U2 is the immediate next phase of U1 and the well-established tumor enhancement time.

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