Use of SPECT MPI exercise stress continues to decline
September 30, 2014 -- The convenience of pharmacologic stress agents and an increase in patient mobility issues are contributing to a decades-long decline in the use of exercise stress for SPECT myocardial perfusion imaging (MPI), according to a study presented at the American Society of Nuclear Cardiology annual meeting.
JAMA: PET falls short in areas with widespread lung disease
September 25, 2014 -- A new study in the September 24 issue of the Journal of the American Medical Association found that FDG-PET has sharply lower specificity for diagnosing lung cancer in geographic regions where infectious lung disease is common. The findings could affect how PET is used for following up CT lung screening studies.
ASNC: Should nuclear technologists read SPECT MPI scans?
September 22, 2014 -- BOSTON - Nuclear medicine technologists were nearly as accurate as cardiologists in reading stress-first SPECT myocardial perfusion imaging (MPI) studies, according to research presented at the American Society of Nuclear Cardiology (ASNC) meeting. The study hints at a role for technologists in determining which patients could avoid the rest portion of the scans.
FDG-PET/CT benefits breast cancer patients younger than 40
September 17, 2014 -- While guidelines recommend FDG-PET/CT only as an optional workup for women with stage III breast cancer, the hybrid modality can help women younger than 40 who have potentially aggressive stage II breast cancer, according to a study published online September 11 in the Journal of Nuclear Medicine.
ASTRO: Imaging, radiation oncology increasingly work as one
September 16, 2014 -- SAN FRANCISCO - Imaging is central to the unprecedented wave of medical specialties converging on cancer care. But it will take more than what today's radiologists are trained for to better understand cancer's mysteries, according to a keynote address by Dr. Hedvig Hricak, PhD, on Monday at the American Society for Radiation Oncology (ASTRO) meeting.
ASCO BCS research highlights benefits of mobile mammo, PET/MR
September 15, 2014 -- Screening for breast cancer with mammography isn't perfect -- and neither are the modalities used to track women already diagnosed with the disease. At the recent American Society of Clinical Oncology (ASCO) Breast Cancer Symposium (BCS) in San Francisco, researchers discussed ways to find and track breast cancer more effectively.
Lawsuit attacks CMS policy on PET beta-amyloid scans
September 11, 2014 -- Three women have filed suit against the U.S. Centers for Medicare and Medicare Services (CMS), seeking to invalidate the agency's reimbursement policy for PET beta-amyloid scans to detect early signs of Alzheimer's disease. The litigation charges that CMS overstepped its authority when it implemented the policy last year.
Ultralow-dose SPECT provides top image quality, less radiation
August 29, 2014 -- With an eye toward lowering radiation exposure, a group of researchers found that an ultralow-dose high-efficiency SPECT scan for myocardial perfusion imaging can achieve better image quality than standard low-dose SPECT, according to a study published in the September Journal of Nuclear Medicine.
Researchers dial back FDG activity to reduce PET/MRI dose
August 21, 2014 -- European researchers have set the groundwork for what they believe is a feasible way to achieve optimal image quality in PET/MRI scans: balancing lower radiotracer dose with prolonged PET image acquisition time to match the longer duration needed for MR image acquisition.
Circulation: Little radiation risk seen in cardiac scans
August 11, 2014 -- A lack of demonstrated harms combined with significant recent dose reductions have led at least one group of cardiovascular imaging specialists to worry less about the risks of a heart scan and more about the well-being of the patient, according to a new review article in Circulation.