Denis Le Bihan

MRI
Threats to ultrahigh-field MRI in Europe
A new European directive designed to prevent workers from being exposed to high magnetic fields could potentially have a severe impact on MRI research, warns Denis Le Bihan, director of the NeuroSpin intense-field neuroimaging project at the CEA-Saclay Center in Gif-sur-Yvette, France.
October 8, 2009
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Molecular Imaging
IMV: PET procedure volumes continue strong growth trend
Overall PET procedure volumes increased by 12.2% in 2024, according to the IMV 2025 PET Market Summary Report.
China Us
Associations
AdvaMed reacts to 90-day pause on ‘reciprocal’ tariffs
(A) Ultrafast MR image obtained 14 seconds after aortic enhancement shows 0.4-cm focus (arrow) in the left breast at 3-o’clock position, 4.5 cm from index cancer (not shown). (B) Ultrafast MR image obtained 23 seconds after aortic enhancement shows wash-in (arrow) of background parenchymal enhancement (BPE). (C) and (D) On first standard postcontrast subtraction MR images, focus (arrow, C) and BPE (arrow, D) are indistinguishable. MRI-guided biopsy of focus yielded grade 2 invasive lobular carcinoma. Image courtesy of the ARRS.
Womens Imaging
Ultrafast breast MRI determines malignant from benign markers
Alzheimers Tau
MRI
Having a father with Alzheimer's could mean higher risk of the disease
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IMV: PET procedure volumes continue strong growth trend
By Davin Korstjens
Overall PET procedure volumes increased by 12.2% in 2024, according to the IMV 2025 PET Market Summary Report.
April 10, 2025
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AdvaMed reacts to 90-day pause on ‘reciprocal’ tariffs
By AuntMinnie.com staff writers
The Advanced Medical Technology Association is encouraged by President Trump’s announcement April 9 of a three-month pause on reciprocal tariffs, with the exception of China.
April 9, 2025
China Us
Ultrafast breast MRI determines malignant from benign markers
By Amerigo Allegretto
Ultrafast breast MRI can differentiate between markers associated with malignancy.
April 9, 2025
(A) Ultrafast MR image obtained 14 seconds after aortic enhancement shows 0.4-cm focus (arrow) in the left breast at 3-o’clock position, 4.5 cm from index cancer (not shown). (B) Ultrafast MR image obtained 23 seconds after aortic enhancement shows wash-in (arrow) of background parenchymal enhancement (BPE). (C) and (D) On first standard postcontrast subtraction MR images, focus (arrow, C) and BPE (arrow, D) are indistinguishable. MRI-guided biopsy of focus yielded grade 2 invasive lobular carcinoma. Image courtesy of the ARRS.
Having a father with Alzheimer's could mean higher risk of the disease
By Kate Madden Yee
Having a father with Alzheimer's may be tied to a greater spread of the tau protein in the brain, researchers have reported.
April 9, 2025
Alzheimers Tau
Part III: From space to the world’s deepest mine
By Will Morton
How far the crew of the recent Fram2 space mission got through the 30-page x-ray protocol they had on board is currently a mystery.
April 9, 2025
Space2
Health-related social needs can lead to missed cancer imaging
By Kate Madden Yee
Health-related social needs can lead to missed imaging appointments among cancer patients.
April 9, 2025
Cancer Cell
CT effective for tracking colon cancer lymph node distribution
By Kate Madden Yee
Using CT to track lymph node distribution in colon cancer patients is more effective at identifying metastasis than conventional testing.
April 8, 2025
Schematic diagrams and representative images of different distribution patterns of region lymph nodes detected at CT. (A) Vascular distribution pattern: All regional lymph nodes detected at CT have regular borders and are distributed along the vessels (arrowheads). (B-E) Coronal CT images in a (B) 34-year-old woman, (C) 51-year-old man, (D) 37-year-old man, and (E) 40-year-old man with microsatellite instability-high (MSI-H) colon cancer show multiple clear lymph nodes distributed along the supplying arteries or draining veins (arrowheads). (F) Jammed cluster pattern: At least three lymph nodes with blurred margins and clustered (circle). (G-I) Coronal CT images in a (G) 29-year-old man, (H) 35-year-old man, and (I) 67-year-old man and (J) axial CT image in a 43-year-old man with MSI-H colon cancer show several lymph nodes with blurred margins and clustered (circle). Movies 1-4 provide more details. (K) Fused pattern: Several poorly defined lymph nodes clustered and fused together (arrow). (L-O) Coronal CT images in a (L) 63-year-old woman, (M) 59-year-old man, (N) 49-year-old woman, and (O) 73-year-old man with MSI-H colon cancers show several lymph nodes fused (arrow). Image courtesy of Radiology.
AI bests rads in finding breast cancer in women with personal history
By Amerigo Allegretto
AI may have a role in finding contralateral disease in women with a personal history of breast cancer.
April 8, 2025
Images depict a 65-year-old patient with contralateral second breast cancer 6.3 years after right mastectomy. (A) Left craniocaudal and (B) mediolateral oblique mammograms assessed as benign. (C) The AI algorithm outlined a lesion with a score of 31 on the craniocaudal view. (D) A supplemental axial ultrasound scan, which was obtained on the same day as the mammogram, shows an irregular hypoechoic mass (arrows) in the left upper central breast. (E) Preoperative sagittal contrast-enhanced T1-weighted MRI scan shows the corresponding enhancing mass (arrow) in the left upper center. The mass was proven to be ductal carcinoma in situ.
Metabolic MRI technique shows promise in Alzheimer’s patients
By Will Morton
In a recent study, deuterium metabolic imaging was highly aligned with F-18 FDG-PET, a cornerstone of dementia diagnostics.
April 8, 2025
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PET reveals brain’s responses to music
By Will Morton
PET has provided the first neuroimaging evidence that music affects the brain’s opioid receptor system.
April 7, 2025
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Does the Continuing Resolution do anything for radiology?
By Sandy Coffta
In a new column, Sandy Coffta assesses the impact on radiology from the Continuing Resolution passed by the U.S. Congress in March.
April 7, 2025
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Black women in underserved areas face higher breast cancer death risk
By Amerigo Allegretto
Black women who live in disadvantaged neighborhoods experience higher breast cancer mortality risk.
April 7, 2025
Black Women Hands Mammography
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