Will Morton

ISMRM 2025
ISMRM: 4D MRI reveals heart impairments in patients with COPD
Research presented at ISMRM 2025 highlighted how 4D flow MRI reveals cardiopulmonary hemodynamic interaction in patients with COPD.
May 12, 2025
Examples of hemodynamic parameter maps superimposed on their corresponding anatomic data for two participants. Participant A represents an example of good flow with lower right ventricle stasis, increased right atrium kinetic energy, and increased mean velocity when compared to the sample’s average calculations. Opposite findings are highlighted by the visualizations of participant B representing an example of poor flow.
ISMRM 2025
ISMRM: Brain’s waste-clearing system accelerates brain aging after stroke
The brain’s glymphatic system appears to accelerate brain aging in patients after ischemic stroke.
May 10, 2025
Representative T2-FLAIR, CBF maps, choroid plexus segment, free-water maps, ALPS ROI, and 3D T1BRAVO from a stroke patient, and a healthy control. Both individuals are 64 years old in chronological age. The patient displays an evident ischemic lesion in the basal ganglia region on T2-FLAIR imaging. The distinctions between the patient and the healthy control are as follows: CBF (32.22 ml/100g/min vs. 47.70 ml/100g/min), CPVF (1.47 vs. 0.84), VCSFVF (32.50 vs. 11.00), MSFW (0.0455 vs. 0.0313), ALPS (1.04 vs. 1.54), and BPAD (13.21 vs. -1.60).
Editor's Note
AuntMinnie.com Molecular Imaging Insider
SPECT/CT myocardial perfusion imaging may help identify patients with coronary artery disease who are more likely to benefit from specific therapies.
May 7, 2025
Molecular Imaging
SPECT/CT MPI may guide medical therapy in CAD patients
SPECT/CT myocardial perfusion imaging can identify patients with coronary artery disease who are more likely to benefit from specific therapies.
May 7, 2025
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MRI
ARRS: Hype is growing around whole-body MRI
Public interest in retail whole-body MRI is growing, and radiologists can play a key role in addressing the hype.
May 5, 2025
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Molecular Imaging
Controversy clouds nuclear medicine bill
Radiology societies and patient advocates are at odds over a bill in the U.S. Congress.
May 1, 2025
Congress
CT
DL model can aid in diagnosing myocardial ischemia
A deep-learning (DL) model can automatically measure myocardial blood flow on CT scans to help diagnose myocardial ischemia.
April 29, 2025
Representative images from diagnostic analysis of deep learning (DL)-based CT myocardial perfusion imaging (MPI). (A-D) Representative images in a 51-year-old woman with stable angina at presentation. (A) Curved planar reformation and (B) three-dimensional maximum intensity projection images show severe stenosis of the opening left anterior descending artery (arrow). (C) Fractional flow reserve (FFR) determined with invasive coronary angiography helps confirm that there was no hemodynamic significance of the opening left anterior descending artery lesion (arrow). (D) Dynamic CT MPI provided functional information to identify hemodynamically significant stenosis with reference to invasive FFR. Myocardial blood flow (MBF) derived from DL-based CT MPI revealed the absence of decreased myocardial perfusion of the left anterior descending artery territory (the areas outlined in black represent the myocardium subtended by the left anterior descending stenosis, and the color bar is a graphical scale that maps MBF ranges). (E-H) Representative images in a 62-year-old man with exertional chest pain at presentation. (E) Curved planar reformation and (F) three-dimensional maximum intensity projection images show moderate stenosis of the middle left anterior descending artery (arrow). (G) FFR determined at invasive coronary angiography helps confirm that the middle left anterior descending lesion was hemodynamically significant (arrow). (H) Dynamic CT MPI provided functional information to identify hemodynamically significant stenosis with reference to invasive FFR. DL-based CT MPI showed a reduction in MBF within the middle and basal anterior wall of the left anterior descending artery territory (the areas outlined in black represent the myocardium with decreased perfusion, and the color bar is a graphical scale that maps MBF ranges). MBFDL = MBF derived from the DL model.
Nuclear Medicine
ARRS: 'Neurotheranostics' may be new frontier for nuclear medicine
Advances in brain PET imaging combined with new treatments for Alzheimer’s have given rise to a new concept of "neurotheranostics."
April 29, 2025
A conceptual framework for neurotheranostics.
MRI
Accelerated MRI protocols reduce environmental impact
Accelerating MRI protocols can cut greenhouse gas emissions, energy use, and costs, while also improving patient access and revenue.
April 22, 2025
Environment
Molecular Imaging
PET scans predict outcomes for patients undergoing CAR T-cell therapy
PET scans performed at one or three months after patients with large B-cell lymphoma begin CAR T-cell therapy can indicate whether they are responding to the treatment.
April 18, 2025
Pet Scan Patient
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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
More in Home
PSMA-PET/CT best for staging prostate cancer
By Will Morton
The finding is from a head-to-head comparison of PSMA-PET/CT with five other techniques.
February 6, 2026
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Could CEUS improve BI-RADS assessment?
By Amerigo Allegretto
Adding Contrast-enhanced ultrasound (CEUS) to BI-RADS could help improve classification of breast lesions.
February 6, 2026
Contrast Injector
Do young athletes with low back pain need advanced imaging?
By Kate Madden Yee
Survey findings may support efforts to reduce unnecessary imaging in this population.
February 6, 2026
Adobe and Drobot Dean
Ultrasound MinnieCast, Episode 1: Is 2026 the year of CEUS?
By Amerigo Allegretto
In the first episode of the Ultrasound MinnieCast, Richard Barr, MD, discusses what's in store for CEUS in 2026.
February 6, 2026
Minnie Cast Thumbnail 1
Microwave ablation safe for tumors close to the heart
By Will Morton
Data on the safety and efficacy of microwave ablation to these high-risk lesions is limited.
February 5, 2026
Lung Tumors
Task-specific LLMs more accurate than general ones for identifying ILNs
By Kate Madden Yee
AI-based tools that "automatically identify and flag actionable findings can optimize patient tracking," researchers noted.
February 5, 2026
Lung Ct Images
Breast MRI with half-dose gadopiclenol comparable to gadobutrol exams
By Kate Madden Yee
The results are particularly good news for patients who require repeated MR imaging.
February 5, 2026
Mri Breast Cancer
25 years of CT technology advances translate to lower radiation doses
By Kate Madden Yee
CT radiation doses have been reduced by a factor of two to 10, researchers have reported.
February 4, 2026
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MIT team reports success from wearable breast ultrasound device
By Amerigo Allegretto
Researchers have developed a wearable breast ultrasound device that successfully imaged breast cysts in a patient.
February 4, 2026
A new imaging system developed by MIT researchers consists of a small ultrasound probe (left) attached to an acquisition and processing module that is a little larger than a smartphone.
AI detects Alzheimer’s on brain perfusion SPECT scans
By Will Morton
The model aims to enhance the consistency and confidence of SPECT interpretation supporting current workflows.
February 3, 2026
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PCCT has higher safety profile than EID-CT for lung imaging
By Amerigo Allegretto
Photon-counting CT (PCCT) leads to fewer adverse outcomes than energy-integrating detector CT (EID-CT), researchers say.
February 3, 2026
Subgroup analysis based on lesion size on PCCT images. The red outlined areas highlight the magnified images of lesions. (A-C) PCCT images in a 62-year-old woman with a body mass index (BMI) of 23.6, calculated as weight in kilograms divided by height in meters squared, who was diagnosed with adenocarcinoma. A lesion with a long diameter of 25 mm was identified in the right lower lobe on axial images acquired during the venous phase. For lesions less than or equal to 30 mm, decreasing section thickness improved boundary sharpness and contrast between the necrotic area and enhanced tissue, with optimal visualization at 0.4 mm. (D-F) PCCT images in a 66-year-old man with a BMI of 24.2 who was diagnosed with adenocarcinoma, revealing a lesion with a long diameter of 52 mm in the right lower lobe. For lesions greater than 30 mm, a section thickness of 1 mm demonstrated better contrast and clarity at the boundary of the necrotic area compared with 0.4 mm. This observation supported the selection of an appropriate section thickness for accurate quantification of necrotic regions within the lesion.
Structured reporting, AI improve chest x-ray workflows
By Will Morton
Structured reporting and AI tools have the potential to transform workflows.
February 3, 2026
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