Jason Birnholz, MD

Nov 28, 2011
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Pediatric radiology continues to face workforce shortage
By Will Morton
The pediatric radiology subspecialty continues to experience a major workforce shortage, researchers have reported.
March 12, 2025
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CTC for colorectal cancer screening is at an 'inflection point'
By Kate Madden Yee
The use of CT colonography (CTC) for colorectal cancer screening is at an "inflection point" after its Medicare reimbursement approval in 2024
March 12, 2025
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Radiology practices hurt by paltry practice expense payments
By Liz Carey
Practice expenses account for close to 70% of total RVUs in radiology, compared with 45% across the MPFS, according to the authors.
March 12, 2025
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Surveillance may be used for DBT-detected architectural distortions
By Amerigo Allegretto
Imaging surveillance may be a safe alternative to surgery for architectural distortions detected on digital breast tomosynthesis (DBT) alone.
March 12, 2025
2025 03 12 Ajr Dbt Distortions Thumbnail
What’s your brain like on a vanilla milkshake?
By Will Morton
A controlled “feeding” PET study by researchers at the National Institutes of Health (NIH) has called into question the theory that ultraprocessed foods elicit brain responses akin to addictive drugs.
March 12, 2025
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DL algorithm targeting prostate cancer demonstrates clinical impact
By Liz Carey
Per participant, a deep-learning (DL) algorithm demonstrated increased specificity of 64.8% compared with radiologists at 21.3%.
March 12, 2025
MRI scans show two areas of clinically significant prostate cancer in a 65-year-old man with a prostate-specific antigen level of 8.23 ng/mL. Images are (A, E) axial T2-weighted images, (B, F) axial diffusion-weighted images obtained with a b value of 1500 sec/mm2, (C, G) axial apparent diffusion coefficient images, and (D, H) lesion masks generated by the deep learning algorithm (DLA) on T2-weighted images. The DLA detected a lesion in the right posteromedial peripheral zone of the apex (D), which was assigned as Prostate Imaging Reporting and Data System (PI-RADS) 4. A radiologist also detected the lesion and assigned it PI-RADS 4 (arrow in A-C). A lesion in the right anterior transition zone (H) was detected by the DLA, which was assigned PI-RADS 4. The radiologist did not detect the lesion (arrow in E-G). Both lesions were confirmed as prostate cancer with Gleason grade group 2. Caption and image courtesy of RSNA.
What has radiology learned in 5 years since COVID hit U.S.?
By Amerigo Allegretto
Experts discuss what the field of radiology has learned in the five years since the COVID-19 pandemic was declared in the U.S.
March 11, 2025
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Generative AI model validated in chest x-ray study
By Will Morton
A group in South Korea has validated a generative AI model that could reduce reading times and increase chest x-ray reporting accuracy.
March 11, 2025
An example that features an AI-generated report that identified “scattered pulmonary granulomatous calcifications.” In the first session, three of five readers specifically reported the presence of a nodule. Following the introduction of the AI-generated report, only one reader maintained the specific mention of a nodule, whereas the other four readers adapted their reports to include the AI-suggested terminology of “granulomatous calcifications.” AP = anterior-posterior. Image and caption courtesy of RSNA.
AI boosts identification of incident vertebral fractures on chest CT
By Kate Madden Yee
An AI algorithm that measures 3D whole thoracic vertebral bone mineral density on conventional chest CT can help predict incident vertebral fractures.
March 11, 2025
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CEM improves breast cancer detection rate over low-energy mammography
By Amerigo Allegretto
Contrast-enhanced mammography (CEM) improves breast cancer detection over low-energy mammography in screening settings.
March 11, 2025
Images depict true-positive findings in a 51-year-old woman with a left breast focal nonmass enhancement. (A) Mediolateral oblique and (B) cranio-caudal contrast-enhanced mammographic (CEM) images show the enhancement (arrows). No correlate was identified on (C) mediolateral-oblique or (D) craniocaudal low-energy images, or whole-breast ultrasound (not shown). Contrast-enhanced breast MRI shows a suspicious enhancement on (E) sagittaland (F) axial subtraction images (arrows), correlating with the finding on CEM images. MRI-guided biopsy (not shown) showed flat epithelial atypia, withsubsequent surgery confirming ductal carcinoma in situ.
PCCT reduces dose on lung cancer screening CT
By Kate Madden Yee
Photon-counting CT (PCCT) technology can yield significant dose reduction on CT lung cancer screening exams, researchers have reported.
March 10, 2025
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Cancer screening rates low among unhoused population
By Amerigo Allegretto
Cancer screening rates among the unhoused are low despite overall high willingness to be screened.
March 10, 2025
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