Scott Williams

PET
PET > PET tumor imaging > Neuroendocrine tumors
April 14, 2021
Inhalation-Lungs
Inhale > E-cigaretteVaping Associated Lung Injury
April 14, 2021
Infections-Inflammatory
Infect > Viral > Rhinovirus
October 19, 2020
Tumor
Tumor > Benign > Inflammatory myofibroblastic tumor
October 19, 2020
Autoimmune
Autoimmune > Hyalinizing granuloma
October 19, 2020
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Where do you want to go?
October 19, 2020
Infections-Inflammatory
Infect > Viral > Influenza
October 19, 2020
Miscellaneous Pulmonary
Misc > Thoracic air leak syndrome
October 19, 2020
Home
Thoracic Radiology Updates
October 19, 2020
Autoimmune
Autoimmune > Drugs
October 19, 2020
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Bar graphs show comparison of volume CT dose index (CTDIvol) (A) achievable doses (50th percentile) and (B) diagnostic reference levels (75th percentile) between 2014 (see reference 4 by Kanal et al) and 2025 (present study) for 10 common CT examination types performed without contrast (w/o) and with contrast (w/). Across all 10 adult CT examination categories, CTDIvol achievable doses and diagnostic reference levels generally decreased from 2014 to 2025, with the largest reductions for torso examinations (chest; abdomen-pelvis; and combined chest, abdomen, and pelvis), intermediate reductions for neck and cervical spine, and minimal change for head examinations.
CT
CT radiation doses have fallen sharply over past decade
The largest reductions appeared in chest examinations with contrast material, where diagnostic reference levels fell 31%.
Images in a 70-year-old asymptomatic woman with a prior excisional biopsy in the left breast yielding lobular carcinoma in situ 3 years earlier. Screening contrast-enhanced mammography (CEM) was performed, which was considered a prevalence screen as the woman had no prior breast MRI in the past 3 years and no prior CEM. (A) Low-energy (26–30 kVp) mediolateral oblique (MLO) and (B) craniocaudal (CC) views show surgical clips but no abnormality. (C) Recombined MLO and (D) CC images show an enhancing mass in the medial left breast (arrows). Biopsy revealed invasive lobular carcinoma. Size was 0.2 cm; tumor grade II/III; negative lymph nodes; and estrogen receptor–positive, progesterone receptor–positive, and human epidermal growth factor receptor 2–negative.
Breast
CEM finds breast cancer at baseline, incidence screening
The Invisible Force Podcast Album Cover Auntminnie Jan 2026 Thumbnails
MRI
Podcast: Testing the effectiveness of today's MR safety standard of care
Uterus Pelvic 400 (1)
Womens Imaging
Uterine fibroid assessment differs by imaging technique
Safety
MRI
Societies host events for MR Safety Week
More in Home
CT radiation doses have fallen sharply over past decade
By Will Morton
The largest reductions appeared in chest examinations with contrast material, where diagnostic reference levels fell 31%.
July 28, 2026
Bar graphs show comparison of volume CT dose index (CTDIvol) (A) achievable doses (50th percentile) and (B) diagnostic reference levels (75th percentile) between 2014 (see reference 4 by Kanal et al) and 2025 (present study) for 10 common CT examination types performed without contrast (w/o) and with contrast (w/). Across all 10 adult CT examination categories, CTDIvol achievable doses and diagnostic reference levels generally decreased from 2014 to 2025, with the largest reductions for torso examinations (chest; abdomen-pelvis; and combined chest, abdomen, and pelvis), intermediate reductions for neck and cervical spine, and minimal change for head examinations.
CEM finds breast cancer at baseline, incidence screening
By Amerigo Allegretto
Incidence screening with CEM maintains high performance and may offer more benefits over baseline CEM screening.
July 28, 2026
Images in a 70-year-old asymptomatic woman with a prior excisional biopsy in the left breast yielding lobular carcinoma in situ 3 years earlier. Screening contrast-enhanced mammography (CEM) was performed, which was considered a prevalence screen as the woman had no prior breast MRI in the past 3 years and no prior CEM. (A) Low-energy (26–30 kVp) mediolateral oblique (MLO) and (B) craniocaudal (CC) views show surgical clips but no abnormality. (C) Recombined MLO and (D) CC images show an enhancing mass in the medial left breast (arrows). Biopsy revealed invasive lobular carcinoma. Size was 0.2 cm; tumor grade II/III; negative lymph nodes; and estrogen receptor–positive, progesterone receptor–positive, and human epidermal growth factor receptor 2–negative.
Podcast: Testing the effectiveness of today's MR safety standard of care
By Liz Carey
If today's MRI safety standard of care were followed, would MRI accidents be impossible, or nearly impossible?
July 28, 2026
The Invisible Force Podcast Album Cover Auntminnie Jan 2026 Thumbnails
Uterine fibroid assessment differs by imaging technique
By Amerigo Allegretto
MRI and ultrasound differ in mapping uterine fibroids in women undergoing laparoscopic-assisted robotic myomectomy.
July 27, 2026
Uterus Pelvic 400 (1)
Societies host events for MR Safety Week
By AuntMinnie.com staff writers
Observances trace to the 2001 death of Michael Colombini.
July 27, 2026
Safety
ACR releases impact tables for 2027 MPFS proposed rule
By AuntMinnie.com staff writers
Beginning January 1, Medicare will use two separate conversion factors under the Medicare Access and CHIP Reauthorization Act (MACRA).
July 24, 2026
Acr1
SPECT/CT viable over PET/CT for high-risk prostate cancer staging
By Will Morton
Considering its broader accessibility, Tc-99m MIP-1404 CZT SPECT/CT may represent a practical alternative for primary staging.
July 24, 2026
Maximum intensity projection of Ga-68 PSMA-11 PET/CE-CT (A), Tc-99m MIP-1404 CZT SPECT/CT (B) and Tc-99m HDP CZT SPECT/CT (C) imaging. Ga-68 PSMA-11 PET/CE-CT and Tc-99m MIP-1404 CZT SPECT/CT showing tracer uptake in lymph nodes below the iliac bifurcation and above, paraaortic and left supraclavicular, bone uptake in the right proximal femur and right scapula (arrows). Tc-99m HDP CZT SPECT/CT did not show any uptake suspicious for metastatic disease. No sclerotic lesions suspicious of metastases were detected by the CT component in any of the studies. Fusion axial imaging of Ga-68 PSMA-11 PET/CE-CT (D) and Tc-99m MIP-1404 CZT SPECT/CT (E) showing uptake in lymph nodes in the left pelvic area below the iliac bifurcation (arrows). Fusion axial imaging of Ga-68 PSMA-11 PET/CE-CT (F) and Tc-99m MIP-1404 CZT SPECT/CT (G) showing uptake in the right proximal femur, not detected by Tc-99m HDP CZT SPECT/CT (H), (arrows).
Ultrasound MinnieCast, Episode 13: Who owns echocardiography?
By Amerigo Allegretto
ASE president Cynthia Taub, MD, shares her thoughts on the current state of echocardiography, including who "owns" the modality.
July 24, 2026
Minnie Cast Thumbnail (16)
CT scanner placement near ED cuts stroke imaging times
By Will Morton
While prior studies have examined the effect of CT scanner location on general ED disposition times, none have focused on stroke-specific time metrics.
July 23, 2026
Emergency2
Bone health declines over time in adolescents with diabetes
By Will Morton
Skeletal health remains under-recognized, under-evaluated, and rarely followed longitudinally in adolescents with type 1 diabetes.
July 22, 2026
Dexa
Are chest x-rays useful in children with recurrent wheezing?
By Will Morton
Recurrent wheezing affects roughly half of all children under three years old.
July 22, 2026
Preschoolers
Lutetium-177 PSMA-617 shows promise in earlier-stage prostate cancer
By Will Morton
Across 14 studies, PSA50 response rates (the number of patients with at least a 50% drop in PSA) ranged from 44% to 100%.
July 21, 2026
Prostate Imaging
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