Subspecialties: Page 49

Can ictal SPECT make a comeback in epilepsy patients?

A feasibility study could revive interest in SPECT seizure imaging to help neurosurgeons guide brain surgery in epilepsy patients.

January 16, 2024

Schematic of triggered ictal SPECT and data processing. (A) Previously screened and selected sEEG bipolar contact is stimulated to trigger patient-typical seizure. Directly after seizure onset, confirmed through sEEG signals and semiology, systemic bolus of radiotracer (Tc-99m HMPAO) is administered. Planned SPECT is acquired within less than one hour. (B) Raw data processing from left to right (dataset from participant three as example). Postimplantation CT and preimplantation T1-weighted MRI are coregistered for sEEG lead localization. Raw SPECT images are coregistered to T1-weighted MRI sequence. SPECT deviation map is computed and anatomically colocalized with sEEG signals. Image courtesy of the Journal of Nuclear Medicine.

Researchers to use MRI for epilepsy surgery decision-making

By AuntMinnie.com staff writers

Vanderbilt University Medical Center, Vanderbilt University, and University of Pennsylvania researchers received an NIH grant to collaborate on the development of new MRI brain network-based tools.

January 16, 2024

Health disparities persist despite decline in cancer mortality rates

By Amerigo Allegretto

While cancer mortality rates declined in the U.S. between 2000 and 2020, racial and ethnic disparities persisted for many cancers.

January 15, 2024

Patient African American Woman 400

International researchers begin testing new MRI-guided proton therapy

By AuntMinnie.com staff writers

Researchers at Dresden University Medical Center in Germany with OncoRay National Center for Radiation Research in Oncology have begun MR-integrated proton therapy research using a full-body MRI-guided proton therapy machine.

January 12, 2024

Mr Guided Proton Therapy System In Germany

Ultrasonic flow ratio reliable for assessing coronary stenosis

By Amerigo Allegretto

Ultrasonic flow ratio is a reliable method for computing fractional flow reserve in assessing coronary stenosis.

January 11, 2024

Heart Attack Disease 3 D 400

PCCT overcomes image limitations for stenosis quantification on CCTA

By Kate Madden Yee

Photon-counting detector CT (PCCT) with virtual monoenergetic imaging reconstruction shows promise for quantifying stenosis with coronary CT angiography (CCTA).

January 10, 2024

82-year-old man with calcified stenosis in left main artery who underwent coronary CTA by PCCT. Curved multiplanar reformatted images at varying virtual monoenergetic imaging (VMI) levels (40-140 keV) show stenosis at each level. Percent diameter stenosis (PDS) decreased from 92.5% at 40 keV to 53.1% at 140 keV. Extent of calcium blooming artifacts decreased from 100% at 40 keV to 72.3% at 140 keV. Image and caption courtesy of the American Journal of Roentgenology.

PET scanner visualizes brain activity when people cough

A recently developed PET camera appears to enable imaging during head motion and has revealed molecular brain patterns in patients when they cough.

January 10, 2024

Statistical parametric mapping (SPM) results. Brain regions with significant activation in voluntary cough (A), induced cough (B), and suppressed cough (C) compared with rest. Image courtesy of Scientific Reports.

CBBCT shows superiority over mammography in small studies

By Amerigo Allegretto

Conebeam breast CT (CBBCT) has superior diagnostic performance than that of mammography in small studies.

January 10, 2024

Ct Scan Patient 400 (1)

Radiation oncology groups unite to reform Medicare payments

By AuntMinnie.com staff writers

Four U.S. physician groups representing radiation oncology have partnered to try to reform Medicare payments and expand patient access to high quality care.

January 9, 2024

SNMMI issues guidelines on FES-PET breast cancer imaging

By AuntMinnie.com staff writers

The Society of Nuclear Medicine and Molecular Imaging (SNMMI) and the European Association of Nuclear Medicine (EANM) have issued guidelines for F-18 fluoroestradiol (FES) PET imaging of breast cancer.

January 9, 2024

Hyperfine launches new Swoop MRI system software

By AuntMinnie.com staff writers

Hyperfine has launched the eighth version of AI-powered system software for its Swoop portable brain MRI system.

January 9, 2024

Hyperfine recently updated the AI software for its portable Swoop MRI system. Image courtesy of Hyperfine.

FAPI-PET predicts treatment response in patients with rheumatoid arthritis

FAPI radiotracer uptake on PET/CT imaging may be a biomarker for identifying early responders to rheumatoid arthritis (RA) treatment.

January 9, 2024

Representative Ga-68 FAPI-04 and F-18 FDG-PET/CT images of responders at three month follow-up. Patient #11 was a 50-year-old man with 28 affected joints detected in PET/CT. Joint activity decreased after treatment with Tripterygium wilfordii, methotrexate, adalimumab, and prednisone. In patient #8 (a 65-year-old woman), Ga-68 FAPI-04 PET/CT showed 12 affected joints. Joint activity decreased from baseline after three months of treatment with Tripterygium wilfordii and methotrexate.

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