Michael Asghar

[email protected]

Molecular Imaging

Multidirectional spectroscopy enables human neuroimaging

Researchers have used a multidirectional functional near-infrared spectroscopy system for human neuroimaging. Their novel approach produces a richer dataset and could improve 3D visualization of brain activity.

April 17, 2019

2019 04 17 19 28 9109 Fnirs Probe 400

Functional MRI assists in somatosensory cortex

Researchers from the U.K. and Germany have used ultrahigh-field functional MRI to produce a precise topographic map of the representation of touch in area 3b of the somatosensory cortex -- a region thought to only respond to mechanical stimulation.

January 31, 2018

2016 07 08 11 17 27 44 2016 07 11 F Mri Gobrain

Functional MRI sheds new light on sound and touch

Researchers in the U.S. and the Netherlands have observed auditory responses in the human somatosensory cortex, a region of the brain usually dedicated to processing touch. They measured functional MRI signal changes following a frequency discrimination task.

November 9, 2017

2016 07 08 11 17 27 44 2016 07 11 F Mri Gobrain

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Cardiac MRI analysis can provide useful information on epicardial adipose tissue, infarct size, microvascular obstruction, and myocardial edema.

MRI casts light on patient outcome after heart attack

Increased volume of fat tissue around the heart tends can be associated with greater myocardial damage after a heart attack, German researchers have reported.

A smartphone is used to take an image for a 3D-printed prosthesis.

3D-printed prostheses bring hope in conflict zones

Obesity Text2

MRI proves effective for tracking results of obesity interventions

Croatia Brushstroke Flag

Lung cancer screening: How Croatia does it

Example case from test set with biparametric MRI data, reference segmentation, and output from AI system. The primary MRI assessment resulted in a PI-RADS 5 lesion in the left dorsal part of the peripheral zone and a PI-RADS 4 lesion in the right dorsal part of the peripheral zone (PSA of 11.6 μg/L). Targeted biopsies from both areas showed ISUP-grade 3. All images are from the same slice location, showing a part of both lesions. A T2-weighted (T2W) image. B Diffusion-weighted image with a b-value of 1,500 s/mm2. (C) Apparent diffusion coefficient map. (D) Reference segmentation with white areas representing tumor. (E) Softmax output from AI system. Inset in the lower left corner shows the detection map (cropped around the prostate) with red voxels representing softmax values of 0.99 and yellow voxels representing softmax values of 0.59. (F) T2W image with reference (D) and detection map (inset in E) overlayed, green represents areas in which both the reference and the AI output are positive (true positive voxels for AI), red only positive in reference (false-negative voxels for AI) and blue only segmented by AI (false-positive voxels for AI).

AI comes under scrutiny in Swedish prostate MRI study

MRI casts light on patient outcome after heart attack

By Maryam Payne

Increased volume of fat tissue around the heart tends can be associated with greater myocardial damage after a heart attack, German researchers have reported.

December 12, 2025

Cardiac MRI analysis can provide useful information on epicardial adipose tissue, infarct size, microvascular obstruction, and myocardial edema.

3D-printed prostheses bring hope in conflict zones

3D-printing allows for faster, lighter, more affordable, and highly customized prosthetic production, and the technology can help patients regain mobility.

December 11, 2025

A smartphone is used to take an image for a 3D-printed prosthesis.

MRI proves effective for tracking results of obesity interventions

By Kate Madden Yee

MRI is a powerful tool to monitor skeletal muscle adaptations during lifestyle interventions for obesity, researchers noted.

December 10, 2025

Lung cancer screening: How Croatia does it

By Maryam Payne

The Croatian lung cancer screening program, integrated into the national system and designed for equitable access, could serve as a model for other countries.

December 10, 2025

Croatia Brushstroke Flag

AI comes under scrutiny in Swedish prostate MRI study

An AI system trained in a screening population has lower specificity than radiologists using PI-RADS v2, but considerable care is vital, researchers from Gothenburg reported in European Radiology on 8 December.

December 9, 2025

Example case from test set with biparametric MRI data, reference segmentation, and output from AI system. The primary MRI assessment resulted in a PI-RADS 5 lesion in the left dorsal part of the peripheral zone and a PI-RADS 4 lesion in the right dorsal part of the peripheral zone (PSA of 11.6 μg/L). Targeted biopsies from both areas showed ISUP-grade 3. All images are from the same slice location, showing a part of both lesions. A T2-weighted (T2W) image. B Diffusion-weighted image with a b-value of 1,500 s/mm2. (C) Apparent diffusion coefficient map. (D) Reference segmentation with white areas representing tumor. (E) Softmax output from AI system. Inset in the lower left corner shows the detection map (cropped around the prostate) with red voxels representing softmax values of 0.99 and yellow voxels representing softmax values of 0.59. (F) T2W image with reference (D) and detection map (inset in E) overlayed, green represents areas in which both the reference and the AI output are positive (true positive voxels for AI), red only positive in reference (false-negative voxels for AI) and blue only segmented by AI (false-positive voxels for AI).

Molecular imaging can trigger 'next revolution' in radiology

By Amerigo Allegretto

Molecular imaging will play a key role in precision medicine, and radiology will be at the forefront in ensuring the best patient outcomes, predicts RSNA President Dr. Umar Mahmood, PhD.

December 8, 2025

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Challenging inequity: ESR group spells out why it matters

By Maryam Payne

Radiology staff must recognize how inequities in imaging affect patients from minority groups, says the ESR subcommittee on equity, diversity, and inclusivity.

December 8, 2025

Color Profiles Res

PET/MRI detects ‘unknown’ generators of musculoskeletal pain

Potential pain generators were identified by increased F-18 FDG radiotracer uptake on PET and/or structural abnormalities on MRI.

December 5, 2025

Digital workflows, 3D models enhance preoperative planning

By Maryam Payne

Low-cost digital workflows using 3D printing and AI-assisted model-building can prove valuable for preoperative planning.

December 5, 2025

Postoperative 3D volume rendering of the fenestrated endograft reconstruction: 3D volume-rendered reconstruction obtained in Horos using the standard soft-tissue preset. The image displays the postoperative appearance of the fenestrated endograft and visceral stents, extending from the descending thoracic aorta to the iliac bifurcation, acquired during the follow-up CT angiogram one month after the procedure. The reconstruction shows patent visceral branches with well-perfused stents, absence of endoleak, and successful restoration of the previously disconnected left limb with adequate iliac perfusion.

Cryoablation treats early-stage breast cancer in older women

By Amerigo Allegretto

Cryoablation is effective in treating early-stage breast cancer in older women who do not undergo surgery, a team from Madrid reported at RSNA 2025.

December 4, 2025

Rsna 2025 Welcome

Stent procedure proves safe in pediatric liver transplant cases

Biodegradable stents appear safe and effective for treating narrowing of the bile ducts in children after liver transplants, Italian researchers noted at RSNA 2025.

December 4, 2025

Biliary Atresia Disease Adobe Pikovit

Radiology must persevere with sustainability efforts

By Kate Madden Yee

It's crucial to reduce medical imaging's energy use and waste to mitigate the effect of global warming, warns RSNA 2025 keynote speaker Dr. Geraldine McGinty.

December 3, 2025

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