Scott Williams

Endocrine
Normal Thyroid:
April 2, 2002
Autonomous_nodule_I123.JPG (11464 bytes)
Collagen Vascular
Collagenvasc > Sjogrens
April 2, 2002
Cardiac
Cardiac > Congenital > Shones anomaly
April 2, 2002
Tramatic Thorax Injuries
Trauma > Lunglac
April 2, 2002
Autoimmune
Autoimmune > Sarcoid > Images
April 2, 2002
Infections-Inflammatory
Infect > Fungus > Histo > Images > Case3
April 2, 2002
M Pa
PET
PET > PET tumor imaging > General
April 2, 2002
Vascular Abnormalities
Vascular > Pulmedema > Images
April 2, 2002
Vascular Abnormalities
Vascular > Muralhematoma
April 2, 2002
Miscellaneous Pulmonary
Misc > Asthma
April 2, 2002
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2026 02 12 Chest Ac2 Thumbnail
Digital X-Ray
Chest x-rays reveal atherosclerosis in patients undergoing amputations
Lower limb amputation is an increasingly common major complication of advanced peripheral arterial disease and diabetes mellitus.
Cardiac Mri Adobe Samunella
MRI
3D MRI technique helps plan treatment for pediatric heart conditions
Images of a 39-year-old who underwent screening mammography. Right craniocaudal (left) and mediolateral oblique (middle) views from preoperative mammography show suspicious grouped fine pleomorphic calcifications (arrows). After biopsy showed ductal carcinoma of situ (DCIS), patient underwent breast-conserving surgery, yielding final diagnosis of ductal carcinoma in situ (intermediate grade, hormone receptor positive). (Right) Screenshot of an output of a commercial AI tool applied to preoperative mammography. AI detected right breast lesion with score of 95% on both views (concentric colored circles). Present study’s reviewing radiologist deemed AI marking to correspond with site of DCIS.
Womens Imaging
Could AI scoring help with managing DCIS?
Axial contrast-enhanced CT scan in a 28-year-old premenopausal woman shows an incidentally detected solid-appearing left ovarian lesion (solid arrow) anterior to the uterus (U), associated with trace ascites in the right adnexa and cul de sac (dashed arrows). At pathologic analysis, this was shown to be ovarian dysgerminoma. Two readers misdiagnosed this lesion, one as a leiomyoma and one as an ovarian fibroma.
CT
Clinicians, beware: CT diagnostic accuracy varies by adnexal lesion type
Erin Stephens
Practice Management
Radiology coding update for 2026
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CXR-Age algorithm validated in large cohort of Asian individuals
By Will Morton
Researchers in Korea have validated a deep-learning AI model (CXR-Age) that estimates biological age from chest x-rays.
July 26, 2024
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Podcast: Moving from a role in academic medicine to leading a company
By Liz Carey
Katherine High, MD, joins Saurabh (Harry) Jha, MD, and Mitchell Schnall, MD, for this episode of the "Keeping Up With the Radiologists" podcast series.
July 26, 2024
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FES-PET effective for staging breast cancer in phase II trial
By Will Morton
F-18 fluroestradiol (FES)-PET/CT appears as effective as standard imaging for staging women with estrogen receptor-positive locally advanced breast cancer or evaluating suspected recurrence.
July 26, 2024
The patient was a woman in her 50s with suspected recurrence of invasive lobular breast cancer. A, maximum intensity projection image from FDG-PET/CT demonstrating avid foci in the chest (red arrow). Transaxial CT (B) and transaxial fused FDG-PET/CT image (C) showing that the chest avidity corresponds to FDG-avid lung nodules (red arrows) suspicious for malignancy. The lung nodule was subsequently biopsied but found to represent benign granulomatous inflammation and thus a false positive on FDG-PET/CT. D, maximum intensity projection image from FES-PET/CT demonstrating multifocal uptake suspicious for malignancy. E, transaxial CT and fused FES-PET/CT demonstrating no FES-avidity in the biopsy proven benign granulomatous lung nodules (red arrows), thus true negative on FES-PET/CT. FES-avidity in nodes (white arrow) is suspicious for malignancy. F, transaxial CT and fused FES-PET/CT demonstrates gastric avidity (blue arrow) suspicious for malignancy. G, transaxial CT and fused FES PET/CT demonstrates FES-avid osseous foci (yellow arrow) suspicious for malignancy. This osseous focus was subsequently biopsied and proved to be an osseous metastasis and thus true positive on FES-PET/CT.
Medicare proposed rule again cuts radiology reimbursement in 2025
By Sandy Coffta
In a new column, Sandy Coffta of Healthcare Administrative Partners reviews the key changes for radiology in the proposed 2025 Medicare Physician Fee Schedule rule.
July 26, 2024
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How imaging AI developers can avoid pitfalls when testing algorithms
By Amerigo Allegretto
AI developers can recognize and avoid pitfalls when creating models and tools for interpretative imaging performance.
July 25, 2024
CT images from a 24-year-old woman with history of ventriculopleural shunt placement who presented with chest pain show two small linear hyperattenuating structures (A, arrows), with larger hyperattenuating structure oriented parallel and very close to the rib. The AI algorithm interpreted the finding as a rib fracture. (B) An additional axial image from same exam indicates that the finding relates to the patient’s ventriculopleural shunt (arrow), passing alongside the rib. The radiologist made a correct interpretation upon assessment of the entire exam. Image courtesy of the ARRS.
Olympic challenge approaches for Paris MSK team
By Philip Ward
The 68-strong squad of radiologists and radiographers for the Olympics is primed and ready for action, according to Jérôme Renoux, MD.
July 24, 2024
Woman Running Paris
PET/MRI rules out tau protein in late-life depression
By Will Morton
A PET/MRI study has provided insights into the neurobiology of late-life depression, finding tau protein is not involved in the condition.
July 25, 2024
Coronal and axial slice of the average cortical F-18 MK-6240 SUVR [standard uptake value ratio] image for each study population. SUVR images were corrected for partial volume effects and masked with the gray matter mask used for volume of interest delineation. Overall tau accumulation is comparable between the late-life depression (LLD, middle column) and non-depressed cognitively unimpaired comparison (HC, left column) groups, while abnormal tau accumulation, which is most pronounced in the mesial temporal lobe, can be seen in the mild cognitive impairment due to Alzheimer's disease group (right column). Image and caption courtesy of the American Journal of Geriatric Psychiatry.
Cardiac CECT localizes fatty tissue in heart
By Amerigo Allegretto
Contrast-enhanced cardiac CT (CECT) can help localize fatty tissue in the heart, which may aid in heart disease treatment planning.
July 24, 2024
Heart Attack Disease 3 D
Tau PET identifies grey matter atrophy in retired athletes
By Will Morton
Flortaucipir PET imaging is able to identify neuropathological brain changes in retired contact sport athletes at risk of neurodegeneration.
July 24, 2024
Example of the flortaucipir tau-PET signal and distribution of low grey matter volume in a single former athlete. Spatial maps of the flortaucipir tau-PET standardized update value (SUVR) (top) and the reduced grey matter volumes showed in blue and defined as voxels with a w-score of >1.5 below the mean (bottom) in a single former athlete. Image courtesy of the Journal of Neurology.
Hanneman discusses cardiac imaging and environmental sustainability
By Will Morton
Cardiac imaging teams should be aware not only of the adverse health effects of climate change but also the downstream environmental ramifications of cardiovascular imaging.
July 24, 2024
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GPT-4 can assist in management of glioblastoma patients
By Liz Carey
Research suggests GPT-4 could streamline longitudinal assessment process by providing a comprehensive overview of prior imaging.
July 23, 2024
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Mammo AI falls short to ultrasound in screening dense breasts
By Amerigo Allegretto
Mammography plus ultrasound yields better results than AI-enhanced mammography alone when it comes to screening of women with dense breasts.
July 23, 2024
Imaging in a 56-year-old woman with heterogeneously dense breasts (BIRADS C). (A) Left craniocaudal (left) and mediolateral oblique (right) digital mammograms show no abnormality. (B) Left craniocaudal (LCC, top) and left mediolateral oblique (LMLO, bottom) mammograms with retrospectively applied AI (Lunit Insight MMG, version 1.1.7.1; Lunit) show the lesion was given abnormality scores of 97% and 71%, respectively. The color bar indicates pixel-level abnormality scores corresponding to heatmap contour lines. Breast ultrasound performed the same day was considered negative (not shown). (C) Left craniocaudal (left) and mediolateral oblique (right) digital mammograms acquired nine months later show an irregular mass (arrows) in the left breast, which correlates with the heatmap areas scored as 97% and 71% by AI in the earlier screening mammogram (B). The radiopaque round marker denotes the site of the palpable abnormality indicated by the patient. (D) Transverse ultrasound imaging shows an irregular mass (arrow) in the left breast. The patient was treated with breast-conserving surgery, and the mass was proven to be invasive lobular carcinoma. Image courtesy of the RSNA.
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