Swante Welander, Peter Rönnquist, and Hans Norberg

Image Processing
New processors bring greater speed to medical imaging industry
In personal computers, quad-core microprocessors and graphics processors allow the user to view graphics with extreme detail. The gaming industry has embraced this technology, and an entire generation of teenagers has driven the development of advanced computer games. Now, the medical imaging industry has discovered that it can leverage the high-speed computation technology to advance medical imaging.
June 11, 2009
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Economics
ACR releases impact tables for 2027 MPFS proposed rule
Beginning January 1, Medicare will use two separate conversion factors under the Medicare Access and CHIP Reauthorization Act (MACRA).
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).
Molecular Imaging
SPECT/CT viable over PET/CT for high-risk prostate cancer staging
Minnie Cast Thumbnail (16)
Ultrasound
Ultrasound MinnieCast, Episode 13: Who owns echocardiography?
Emergency2
CT
CT scanner placement near ED cuts stroke imaging times
Dexa
Digital X-Ray
Bone health declines over time in adolescents with diabetes
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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
MRI reveals links between brain aging, neuro disorders
By Amerigo Allegretto
MRI shows that people with neurological conditions show increased brain aging.
July 21, 2026
Mri Brain Head 400
LDCT screening criteria miss majority of Korean lung cancer patients
By Will Morton
Just 35.4% of patients diagnosed with lung cancer met the 2023 American Cancer Society (ACS) screening criteria.
July 21, 2026
Lung Cancer
ACR rolls out PE-RADS for pulmonary embolism care
By Amerigo Allegretto
The framework outlines grading and suggestions for CT and MRI angiography interpretation.
July 21, 2026
Acute pulmonary embolism (PE) with right ventricle (RV) enlargement and clot-in-transit. PE chest axial CT angiography images demonstrate pulmonary embolus in the right pulmonary artery (white solid arrow), an enlarged RV (dotted arrow), and thrombus transiting through the right atrium (black arrows), PE-RADS 4/RV+/T+. The “4” refers to the PE‑RADS ordinal category for the most proximal clot location (central arteries). “RV+” indicates RV enlargement (RV to left ventricle ratio ≥ 1.0). “T+” indicates definitive thrombus identified in the right atrium and/or RV.
CT reveals severe craniofacial, ocular trauma from pager blasts
By Will Morton
Head injuries were nearly universal, affecting 93.2% of patients.
July 20, 2026
Adobe Stock 517622853
Tau PET tracer flags early Alzheimer risk in healthy older adults
By Will Morton
Few studies have investigated how F-18 PI-2620 is associated with memory performance or AD-related biomarkers in cognitively unimpaired older adults.
July 17, 2026
F-18 PI-2620 average binding potential maps. Mean tracer binding (DVR) image from 165 older adults (A) and 13 young adults (B). Images are scaled from 1 to 1.8 for display purposes, but DVR values of less than 1 were frequently observed.
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