RSNA 2005

Nov 27, 2005

Soldier Field sparkles in the sunshine of an unusually warm November day in Chicago.

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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 radiation doses have fallen sharply over past decade

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.

CEM finds breast cancer at baseline, incidence screening

July 28, 2026

The Invisible Force Podcast Album Cover Auntminnie Jan 2026 Thumbnails

Podcast: Testing the effectiveness of today's MR safety standard of care

July 28, 2026

Uterus Pelvic 400 (1)

Uterine fibroid assessment differs by imaging technique

July 27, 2026

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%.

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

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

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

SPECT/CT viable over PET/CT for high-risk prostate cancer staging

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

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

Bone health declines over time in adolescents with diabetes

Skeletal health remains under-recognized, under-evaluated, and rarely followed longitudinally in adolescents with type 1 diabetes.

July 22, 2026

Are chest x-rays useful in children with recurrent wheezing?

Recurrent wheezing affects roughly half of all children under three years old.

July 22, 2026

Lutetium-177 PSMA-617 shows promise in earlier-stage prostate cancer

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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