Dr. Roderic Pettigrew, PhD

Nov 26, 2017
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Bone-RADS improves accuracy for junior, attending physicans
By Amerigo Allegretto
ACR's Bone-RADS led to improved diagnostic accuracy for junior and attending physicians, but lower accuracy for senior physicians.
October 17, 2025
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MRI, CT, ultrasound biomarkers help identify Crohn disease strictures
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The findings of a review published in Radiographics could help clinicians determine the best treatment for the disease.
October 17, 2025
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Low breast cancer screening prevalence tied to socioeconomic factors
By Amerigo Allegretto
Geographic trends show that low cancer screening participation is linked to socioeconomic disadvantages.
October 17, 2025
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PET/CT reveals ‘chemo brain’ regions in leukemia patients
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Chemotherapy is associated with brain metabolic alterations, particularly in areas governing cognition and emotion.
October 16, 2025
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Stanford AIDE lab proposes radiology AI safety monitoring model
By Liz Carey
EMM was developed to monitor FDA-cleared radiological AI devices as a complement to retrospective monitoring.
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Low-field MRI improves Alzheimer's research access
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Why? Because the technology could be more geographically accessible, researchers noted.
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Could more imaging access improve prison cancer care?
By Amerigo Allegretto
One potential strategy for improving cancer care among incarcerated individuals is more access to screening tests.
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PI-RADS v2.1 is 'highly sensitive' for prostate cancer detection on MRI
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PI-RADS v2.1 was developed by the ACR and the European Society of Urogenital Radiology (ESUR) and released in 2019.
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qHDMI differentiates radial scars from invasive breast cancer
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Angiogenesis-based biomarkers from ultrasound can differentiate between radial scar lesions and invasive breast cancer.
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Lung biopsy before surgery linked to cancer recurrence
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The findings confirm concerns about “tumor cell spillage” during the procedure.
October 14, 2025
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Abnormal CT-FFR results translate to up to 7 years of cardiovascular risk
By Kate Madden Yee
The prognostic value of CT fractional flow reserve (CT-FFR) has been unclear, but a recent study's findings offer further insight.
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PSMA-PET/CT reporting varies widely in the U.S.
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Standardized interpretation frameworks for PSMA-PET/CT reporting are underused in the U.S.
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