Molecular Imaging Digital Community
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.
Pilot study shows PET/MRI's benefits for large-vessel vasculitis
August 7, 2014 -- Evidence supporting the clinical value of PET/MRI continues to mount, as a small study from Germany has found that the hybrid modality is effective for evaluating patients with large-vessel vasculitis.
Study adds evidence linking Alzheimer's to sleep disorders
August 1, 2014 -- PET images with the radiopharmaceuticals FDG and Pittsburgh Compound B have shown a connection between sleep disorders such as sleep apnea and preclinical Alzheimer's among the cognitively normal elderly, according to researchers in New York City.
AAPM: Radiomics helps fine-tune radiation therapy dose
July 24, 2014 -- By extracting statistical information and other measurements from PET images using a data analysis technique called radiomics, researchers have developed a way to determine radiation therapy dose more accurately, according to a study presented this week at the American Association of Physicists in Medicine (AAPM) meeting.
PET agents differentiate Alzheimer's, cardiovascular disease
July 17, 2014 -- Researchers have found that using PET brain imaging with florbetapir and FDG can differentiate cardiovascular disease from symptoms of mild cognitive impairment or Alzheimer's disease. The combination can also detect amyloid plaques in patients with cardiovascular disease.
Moments in Radiology History: Part 16 -- Early nuclear medicine
July 11, 2014 -- After early efforts began to harness the power of x-rays for diagnosis and therapy, some physicians and physicists chose to focus instead on the development of radioactive isotopes. In his latest Moments in Radiology History installment, radiology historian Otha Linton examines the advances that ultimately led to the field of nuclear medicine.
Early trial of PET tracer shows promise for brain tumors
July 2, 2014 -- Researchers at the University of Wisconsin's UW Health system have completed the first successful human clinical trial of a new PET radiopharmaceutical that targets and detects brain tumors more specifically than FDG.
Celesteion PET/CT marks Toshiba's re-entry in U.S. NM market
June 26, 2014 -- For the first time in some seven years, Toshiba America Medical Systems is officially a player again in the U.S. nuclear medicine market with its newly introduced and recently cleared Celesteion PET/CT system.
4-scan PET/MRI exams improve breast imaging
June 25, 2014 -- Austrian researchers added PET/CT to a package of three MRI sequences to create fused PET/MR images, which they found aided in the differentiation of suspicious breast lesions, according to a new study published online in Clinical Cancer Research.
Dementia link? SPECT finds brain changes in football players
June 19, 2014 -- SPECT imaging has uncovered abnormal cerebral blood flow in retired professional football players in brain regions associated with frontotemporal dementia and Alzheimer's disease, according to a poster presentation at last week's Society of Nuclear Medicine and Molecular Imaging (SNMMI) meeting.
SNMMI: PET, MRI may predict pediatric brain tumor outcomes
June 11, 2014 -- ST. LOUIS - Researchers from Boston Children's Hospital have found that certain PET and MR imaging characteristics of brain tumors in pediatric patients may help predict progression-free and overall survival, according to a study presented on Tuesday at the Society of Nuclear Medicine and Molecular Imaging (SNMMI) meeting.
SNMMI: ARMI trial shows benefits of Rb-82 PET for heart disease
June 10, 2014 -- ST. LOUIS - Trial results presented on Monday at the Society of Nuclear Medicine and Molecular Imaging (SNMMI) meeting show that rubidium-82 PET outperformed thallium-201 SPECT for diagnosing obstructive coronary artery disease -- all while exposing patients to less radiation.
SNMMI: Alzheimer's PET tracer wins Image of the Year award
June 9, 2014 -- ST. LOUIS - A PET image using the novel tracer F-18 THK5117 to label tau protein and neurofibrillary tangles associated with Alzheimer's disease has received the Society of Nuclear Medicine and Molecular Imaging's (SNMMI) 2014 Image of the Year award.
SNMMI: New PET tracer detects recurrent prostate cancer
June 9, 2014 -- ST. LOUIS - German researchers have developed a new PET radiotracer that detects recurrent prostate cancer in patients with very low prostate-specific antigen levels, according to two preliminary studies presented on Sunday at the Society of Nuclear Medicine and Molecular Imaging (SNMMI) annual meeting.
PET studies up, adverse reactions flat from 2007-2011
June 3, 2014 -- Adverse reactions due to radiopharmaceuticals remained the same from 2007 to 2011, despite an increase in the number of PET exams during those five years, according to a study published online May 29 in the Journal of Nuclear Medicine.
PET/MRI holds its own for esophageal cancer staging
June 2, 2014 -- The benefits of PET/MRI may be expanding to esophageal cancer, according to a study published online May 27 in the Journal of Nuclear Medicine. Korean researchers found that the hybrid modality matched endoscopic ultrasound for staging tumors.

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