Brian Casey

[email protected]

Molecular Imaging

PET/CT finds unknown primary tumors

December 7, 2005

Cardiac Imaging

Echo beats ECG for cardiac gating studies

December 5, 2005

AuntMinnieTV: Tomosynthesis targets breast cancer

December 4, 2005

Philips demos new CT detector technology

Philips Medical Systems is giving RSNA attendees a sneak peak at a new CT detector technology that could serve as the platform for a new generation of multislice CT scanners with up to 256 slices and support for CT studies with multiple x-ray energies.

November 29, 2005

RSNA 2005: Radiology holds turf in vascular ultrasound

November 28, 2005

Dual-source CT tops Siemens RSNA highlights

CHICAGO - A new dual-source CT scanner -- using two sets of x-ray tubes and detector arrays -- is the RSNA highlight for multimodality vendor Siemens Medical Solutions. The Malvern, PA, company is also demonstrating recent advances in MRI, molecular imaging, PACS, ultrasound, and x-ray.

November 28, 2005

Toshiba highlights new x-ray, ultrasound systems

CHICAGO - New ultrasound and x-ray systems are being touted in the RSNA booth of Toshiba America Medical Systems, and the Tustin, CA, company is also promoting advances to its MRI and CT product lines.

November 27, 2005

New MRI, CT, x-ray products pace GE's RSNA introductions

CHICAGO - Multimodality vendor GE Healthcare is launching new MRI, CT, and x-ray product lines at this week's RSNA show. Other new introductions from the Chalfont St. Giles, U.K. company include an update of its full-field digital mammography platform, a new four-slice SPECT/CT system, and upgrades for its ultrasound product line.

November 27, 2005

Get all the news from this year's RSNA show

November 26, 2005

Lung CAD wins payment milestone

November 21, 2005

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U.S. FDA may need to clarify SaMD validation standards

In a video interview, a Dana-Farber Cancer Institute expert describes what the "rigor spectrum" is in validation study designs.

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PSMA-PET/CT may replace NaF-PET/CT in advanced prostate cancer

Mri Breast Cancer

Preop breast MRI improves surgical planning, but use disparities remain

Uterus Pelvic 400

FIGO classification from MRI leads to moderate agreement among rads

Register Now: Breaking Barriers in Breast Imaging Webinar

Register Now: Breaking Barriers in Breast Imaging Webinar

AI spots unidentified brain tumor on PET imaging

An AI algorithm designed for brain PET imaging found a glioblastoma in a patient that had gone undetected by physicians.

February 20, 2024

Baseline scan (A), segmentation results (B), and follow-up scan (C) from patient with molecular glioblastoma. Baseline MRI showed FLAIR hyperintensities in left thalamus and frontoparietal region (white arrowheads). In contrast to expert segmentation, in which only left thalamic region showed slightly increased uptake (red contour), AI algorithm identified additional frontoparietal lesion on baseline PET that subsequently progressed to contrast-enhancing and metabolically active lesion (red arrowheads). Image courtesy of the Journal of Nuclear Medicine.

MRI reveals functional brain alterations associated with depression

By Kate Madden Yee

Researchers have found that MRI reveals functional brain alterations that are associated with major depression.

February 20, 2024

How can radiologists prepare for breast density notification laws?

By Amerigo Allegretto

Lars Grimm, MD, from the Society of Breast Imaging spoke on how breast imaging facilities can best prepare for new breast density notification laws.

February 16, 2024

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Can radiologists’ eye-tracking data enhance AI?

Integrating eye-tracking data that map how radiologists interpret x-rays into deep learning AI algorithms could be key to developing more “human-centered” AI.

February 16, 2024

Difference between saccades, fixations, and attention heatmaps in radiologist eye-tracking studies. Image courtesy of the European Journal of Radiology.

PI-RADS optimizes MRI-based diagnostics for prostate cancer detection

By Kate Madden Yee

It's better to take Prostate Imaging-Reporting and Data System (PI-RADS) upgrading rules into account when it comes to deciding whether a patient with clinically significant prostate cancer needs a biopsy, researchers have reported.

February 15, 2024

Prostate Cancer

PET links tau pathology to speech changes in unimpaired patients

Brain pathology associated with Alzheimer’s disease in cognitively unimpaired adults appears to be linked to speech changes.

February 15, 2024

ADC optimal cutoff reduces MRI-prompted breast biopsies

By Amerigo Allegretto

Applying point-of-care apparent diffusion coefficient (ADC) cutoffs from diffusion-weighted imaging could reduce MRI-prompted breast biopsies.

February 15, 2024

Apparent diffusion coefficient (ADC) measurements for benign and malignant BI-RADS category 4 or 5 lesions at MRI. (A, B) Benign BI-RADS category 4 lesion in a 55-year-old woman. (A) Dynamic contrast-enhanced MRI (DCE-MRI) scan shows a 12-mm, oval, circumscribed, homogeneous mass in the right posterior breast (arrow). (B) On the diffusion-weighted image, the lesion shows high diffusivity (arrow), with an ADC of 2.04 × 10-3 mm2/sec. Biopsy revealed benign fibroadenoma. (C, D) Malignant BI-RADS category 4 lesion in a 41-year-old woman. (C) DCE-MRI scan shows a 24-mm irregular, heterogeneous mass at the 3 o’clock position in the left breast (arrow). (D) On the diffusion-weighted image, the lesion demonstrates low diffusivity (arrow), with an ADC of 0.91 × 10-3 mm2/sec. Biopsy revealed invasive ductal carcinoma. All MRI scans are shown in the axial plane. (E) Box plot shows ADC measurements for 240 BI-RADS 4 and 5 lesions (63 malignant and 177 benign). Both prespecified optimal and conservative ADC cutoffs are indicated on the plot for reference: 1.53 × 10-3 mm2/sec (dashed line) and 1.68 × 10-3 mm2/sec (dotted line), respectively. All ADCs were calculated with maximum b value of 800 sec/mm2. The midline of each box shows the median value, and the box extends from first to third quartiles. The whiskers extend from the first and third quartiles to the smallest and largest values, respectively, if those values are within 1.5 times the IQR. If not, the length of the whiskers is limited to 1.5 times the IQR. Image courtesy of the RSNA.

Unmet social needs tied to screening mammography use

By Amerigo Allegretto

Women's unmet social needs should be considered to better promote breast cancer screening utilization and early-stage cancer diagnosis.

February 14, 2024

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Functional MRI shows promise for treating chronic severe tinnitus

By Kate Madden Yee

Real-time functional MRI neurofeedback therapy may be more effective for treating chronic severe tinnitus than cognitive behavioral therapy, researchers have found.

February 14, 2024

Tinnitus Ear Problems Illustration

Radiologists ‘compete’ on chest x-rays reads with and without AI

In a study described as a “competition between radiologists,” participants tasked with identifying abnormal findings on chest x-rays performed better with AI assistance than without AI assistance – though not by much and not in all cases.

February 14, 2024

The AI system output the bounding boxes and labels of the lesions to assist radiologists. Image courtesy of the Journal of Imaging Informatics in Medicine.

Radiation oncology leaders talk Medicare payment reform

By Amerigo Allegretto

Radiation oncology leaders spoke with AuntMinnie.com about an alliance to reform Medicare payments for radiation therapy services.

February 14, 2024

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Marion Smits speaks on TikTok, open access and all things ECR

By Liana Gruenberg

This may come as a surprise given her reputation for high-quality research, but Marion Smits, MD, PhD, is a big fan of TikTok. She's also a huge supporter of open-access publishing and ECR.

February 13, 2024

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