Radiation Oncology

Radiation therapy uses high-energy radiation to damage cancer cells' DNA and destroy their ability to divide and grow. It is delivered using linear accelerators, proton accelerators, metered cobalt-60 exposure, or brachytherapy where radioactive seeds are placed inside the patient on a temporary or permanent basis to kill cancer or relieve pain. The main radiation oncology society and annual conference is the American Society of Radiation Oncology (ASTRO).

The approach—called GammaTile—involves placing small radiation seeds at a tumor site during surgery.

New radiation therapy treatment stalls recurrence while sparing healthy tissue in patients with brain cancer

The treatment has the potential to “extend lifespans and improve quality of life” in patients with brain cancer, according to experts at UC San Diego Health. 

September 19, 2022
Two examples of PSMA-PET scans showing numerous prostate cancer metastases spread throughout the body. Many of these smaller tumors would not have been detected on previous standard-of-care imaging. Photo on left courtesy of SNMMI, right University of Chicago. #PSMAPET

PSMA-PET is rapidly changing the standard of care for prostate cancer patients

Adoption of PSMA-PET has been swift because it can significantly improve prostate cancer detection and treatment. SNMMI President Munir Ghesani, MD, explains how.

August 26, 2022
non-small cell lung cancer tumor segmentation

Algorithm reduces NSCLC tumor segmentation times by 65%

In a close collaboration with radiation oncologists, experts trained their model on the CT lung images of 787 patients and tested it on the scans of more than 1,300 patients from external datasets.

August 24, 2022
The American College of Cardiology and American Heart Association have collaborated on a new update to the much-discussed 2021 chest pain guidelines. The American College of Emergency Physicians and Society for Cardiac Angiography and Interventions also contributed to the document.

Radiation therapy more likely to cause second primary cancer in prostate cancer patients

The authors stated that their results should not deter providers from offering their patients radiotherapy treatment but rather encourage in-depth discussions and shared decisions pertaining to the best options.

August 1, 2022
lung cancer pulmonary nodule chest

Preoperative PET/CT imaging linked with better survival in advanced lung cancer

PET/CT imaging in these patients increases overall survival depending on the cancer’s stage, with those diagnosed with stage 3A and 3B NSCLC appearing to benefit the most from the exam. 

June 24, 2022
Patient in hospital bed

Radiomic model predicts radiotherapy outcomes for patients with brain metastases

The model performed well in assessing treatment responses, but experts explained that one of the most beneficial aspects of their model was that its results are interpretable in a “clinician-friendly way.” 

June 22, 2022
SNMMI abstract of the year, targeted radionuclide therapy

Targeted radionuclide alpha therapy study wins SNMMI's Abstract of the Year

The study touts the benefits of targeted radionuclide alpha therapy for patients with gastroenteropancreatic neuroendocrine tumors (GEP-NETs) who have not had success with other treatments.

June 15, 2022
Behfar Ehdaie

High-intensity focused ultrasound effectively treats PCA, reduces side effects

Men with prostate cancer can avoid many of the unpleasant side effects of chemo, surgery and radiation therapy when they are treated with high-intensity focused ultrasound instead.

June 15, 2022

Around the web

Automated AI-generated measurements combined with annotated CT images can improve treatment planning and help referring physicians and patients better understand their disease, explained Sarah Jane Rinehart, MD, director of cardiac imaging with Charleston Area Medical Center.

Two advanced algorithms—one for CAC scores and another for segmenting cardiac chamber volumes—outperformed radiologists when assessing low-dose chest CT scans. 

"Gen AI can help tackle repetitive tasks and provide insights into massive datasets, saving valuable time," Thomas Kurian, CEO of Google Cloud, said Tuesday. 

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