Todd Pietila

Advanced Visualization
Tips for implementing 3D printing at your hospital
Although 3D printing as a core service in healthcare is still in its infancy, many innovative institutions have been blazing a path. In this article, Todd Pietila of 3D software developer Materialise offers tips for starting a 3D printing service at your facility.
November 3, 2015
2015 11 03 14 55 43 360 3d Printing Fig8 200
Page 1 of 1
Top Stories
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.
Molecular Imaging
Tau PET tracer flags early Alzheimer risk in healthy older adults
Few studies have investigated how F-18 PI-2620 is associated with memory performance or AD-related biomarkers in cognitively unimpaired older adults.
Top eight incorrectly classified synthetic images (Most convincing fake images). Images A, B, C, D, E, F, G and H were the most infrequently correctly classified images at 24%, 43%, 59%, 64%, 69%, 71%, 71% and 73% respectively. All images are AI-generated. Images A, B and C are head CTs. Images D and E are chest CTs. Image F is a cardiac CT. Image G is a musculoskeletal MRI. Image H is a head MRI. Images are republished under a Creative Commons license (CC BY 4.0).
AI
Radiologists can identify three out of four AI-generated images
Minnie Cast Thumbnail (15)
Womens Imaging
Women's Imaging MinnieCast, Episode 13: Partial breast irradiation in the spotlight
Annual and cumulative FDA authorizations of AI/ML-enabled medical devices, 1995–2025.
AI
Radiology dominates thirty years of FDA AI device approvals
Student Doctor Laptop Test 400 (1)
Radiologic Technologist
Petition seeks to increase number of attempts for taking ARRT exam
More in Home
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.
Radiologists can identify three out of four AI-generated images
By Amerigo Allegretto
Radiologists found it particularly difficult to distinguish between real and AI-generated CT and MR images.
July 17, 2026
Top eight incorrectly classified synthetic images (Most convincing fake images). Images A, B, C, D, E, F, G and H were the most infrequently correctly classified images at 24%, 43%, 59%, 64%, 69%, 71%, 71% and 73% respectively. All images are AI-generated. Images A, B and C are head CTs. Images D and E are chest CTs. Image F is a cardiac CT. Image G is a musculoskeletal MRI. Image H is a head MRI. Images are republished under a Creative Commons license (CC BY 4.0).
Women's Imaging MinnieCast, Episode 13: Partial breast irradiation in the spotlight
By Amerigo Allegretto
Two committee members for ASTRO's PBI guidelines share insights about this breast cancer treatment option.
July 17, 2026
Minnie Cast Thumbnail (15)
Radiology dominates thirty years of FDA AI device approvals
By Will Morton
The total annual authorization volume increased from a mean of 1.8 per year between 1995 and 2014 to 264 per year between 2023 and 2025.
July 16, 2026
Annual and cumulative FDA authorizations of AI/ML-enabled medical devices, 1995–2025.
Petition seeks to increase number of attempts for taking ARRT exam
By Amerigo Allegretto
The petition has received over 10,000 signatures as of July 16.
July 16, 2026
Student Doctor Laptop Test 400 (1)
Societies applaud introduction of Patients First Act
By AuntMinnie.com staff writers
The bill includes provisions affecting imaging appropriate use criteria (AUC), the Medicare conversion factor, and the Quality Payment Program (QPP).
July 16, 2026
Congress
2027 MPFS proposed rule would lift radiology reimbursement
By AuntMinnie.com staff writers
If finalized, the proposed rule is expected to hike reimbursement by 2% for radiology, 2% for nuclear medicine, 3% for interventional radiology, and 3% for radiation oncology.
July 15, 2026
Money
MRI could replace DRE for prostate cancer staging
By Amerigo Allegretto
MRI showed comparable performance to DRE in prostate cancer staging without compromising patient outcomes.
July 15, 2026
Prostate Cancer 400
Petition asks FDA to implement new OEM rule for MRI safety
By Liz Carey
Radiofrequency (RF)-induced burns prompt recommendations to MRI manufacturers.
July 14, 2026
Mri Scanner2 Social
Incorrect AI suggestions influence reader performance on mammography
By Amerigo Allegretto
The biggest impact on reader performance stemmed from false-negative AI suggestions.
July 14, 2026
A normal mammogram confirmed by three-year radiologic follow-up illustrates reader-marked regions of interest (ROIs) during (A) unaided (round 1) and (B) artificial intelligence (AI)–assisted (round 2) reading. Each colored dot represents an ROI for recall by a human reader. Readers could mark more than one ROI per case, represented by multiple dots of the same color. During AI-assisted reading, the AI system displayed three visible prompts: two with suspicion of malignancy scores of 35% (left mediolateral oblique [L MLO] and craniocaudal [L CC]) and one with a suspicion of malignancy score of 10% (right craniocaudal [R CC]), shown as polygonal overlays. Without AI, six of 10 readers (60%) marked a false-positive ROI. With AI assistance, this fell to two of 10 (20%). R MLO = right mediolateral oblique.
Podcast: MRI tragedy, key aspects of the Colombini family's lawsuit
By Liz Carey
Inside the Michael Colombini case, Gilk and Posh continue retrospective analysis.
July 14, 2026
The Invisible Force Podcast Album Cover Auntminnie Jan 2026 Thumbnails
Brain PET scans reveal neuron loss in long COVID
By Will Morton
The findings suggest that treatments aimed at boosting dopamine release could be repurposed to treat long COVID.
July 14, 2026
Representative participant from each group shown. C-11 DTBZ non-displaceable binding potential (BPND) in voxels quantitated with simplified reference tissue model 2. Color scale indicates C-11 DTBZ BPND from 0 (black) to 3.5 (red), with reduced C-11 DTBZ BPND observed in the long COVID case compared to both healthy controls.
Page 1 of 239
Next Page