Molecular Imaging Digital Community
Simultaneous PET/MRI most accurate for image alignment
May 15, 2013 -- In a comparison of hybrid imaging modalities, simultaneous whole-body PET/MRI is more accurate than retrospectively fused PET and MR images in abdominal organs and better than PET/CT in the urinary bladder, according to a study published online May 8 in Radiology.
Study shows feasibility of cardiac PET/MRI -- with caveats
May 9, 2013 -- Cardiac FDG-PET/MRI is feasible on an integrated whole-body PET/MRI system, but the hybrid modality still must prove it adds clinical relevance to cases of ischemic heart disease, according to a study published online May 7 in Radiology.
C-11 acetate PET/CT helps patients before prostatectomy
May 6, 2013 -- PET/CT with carbon-11 (C-11) acetate is better at detecting lymph-node metastasis among patients planning for or completing radical prostatectomy than conventional imaging, and it can help predict treatment efficacy and survival, according to a study published in the May Journal of Nuclear Medicine.
PET/CT predicts early breast cancer response to chemo
April 10, 2013 -- By using FDG-PET/CT, physicians will be in a better position to noninvasively predict a breast cancer patient's response to treatment after two cycles of neoadjuvant chemotherapy, helping them decide on the next course of action, concluded a study from Germany.
FLT-PET could help predict outcome in head and neck cancer
April 4, 2013 -- Change in F-18 fluorothymidine (FLT) uptake on PET during early radiotherapy or chemoradiotherapy is a strong indicator of the long-term outcomes of head and neck cancer patients, Dutch researchers report in the April issue of the Journal of Nuclear Medicine.
CMS to loosen strings on oncology PET payments
March 14, 2013 -- In a move that should make PET reimbursement easier for most oncology applications, the U.S. Centers for Medicare and Medicaid Services (CMS) this week proposed removing its longstanding requirement that FDG-PET scans of patients with solid tumors be reported to a national data registry.
CMS reconsiders oncology PET tracer coverage limitations
March 8, 2013 -- As it had proposed in December, the U.S. Centers for Medicare and Medicaid Services (CMS) has removed a national noncoverage determination for radiopharmaceuticals with oncology PET imaging. However, CMS was not swayed by lobbying efforts to also include cardiac and neurological applications in the decision.
European experts urge caution on PET/MRI use
March 7, 2013 -- VIENNA - "Hold your horses" was the main message regarding PET/MRI at Thursday's ECR 2013 opening press conference. People may want to quickly adopt the fairly new technique, but Dr. Heinz-Peter Schlemmer of the German Cancer Research Center in Heidelberg urged caution.
Study shows decline in abnormal stress SPECT MPI
March 6, 2013 -- Over the past two decades, the frequency and severity of abnormal stress SPECT myocardial perfusion imaging (MPI) studies have significantly decreased, with the prevalence of abnormal SPECT exams falling from 40.9% to 8.7%, researchers reported in the March 5 issue of the Journal of the American College of Cardiology.
Study shows disparities in PET access for NSCLC patients
February 27, 2013 -- While PET utilization increased overall among Medicare beneficiaries with non-small cell lung cancer (NSCLC) from 1998 through 2007, long-standing disparities in access to the technology actually worsened over the same time period, according to a study published online February 15 in Radiology.
Imaging again dominates ECRI list of hospital tech issues
February 21, 2013 -- For the second year in a row, topics related to medical imaging dominated the annual top 10 list of important technology issues for hospital executives, from the perspective of nonprofit technology research firm ECRI Institute.
Imaging shows toll of vascular brain injury
February 14, 2013 -- MR and PET images show that vascular brain injury from conditions such as high blood pressure and stroke has a considerably greater influence on cognitive impairment among nondemented older people than beta-amyloid plaque deposits, according to a study published online February 11 in JAMA Neurology.
Moments in Radiology History: Part 12 -- Radioisotopes
February 13, 2013 -- In the latest Moments in Radiology History column, historian Otha Linton traces the path of radioisotopes from physicist Antoine Henri Becquerel and the Curies to cyclotrons in California, the first treatments of cancer patients, and World War II and the atomic bomb.
SNMMI builds global ties with China partnership
February 12, 2013 -- The Society of Nuclear Medicine and Molecular Imaging (SNMMI) and the Chinese Society of Nuclear Medicine may be worlds apart on a map, but when it comes to priorities and advancing the specialty, the two organizations have much in common.
Study shows PiB-PET detects amyloid plaque in heart
February 5, 2013 -- Swedish researchers are expanding the use of PET imaging with carbon-11-labeled Pittsburgh Compound B (PiB) to cardiac amyloidosis, confirming the biomarker's ability to detect amyloid plaque deposits in the heart in a first-of-its-kind study in the February issue of the Journal of Nuclear Medicine.
CMS committee not yet swayed on brain amyloid PET imaging
January 31, 2013 -- A U.S. Centers for Medicare and Medicaid Services (CMS) advisory committee said on Wednesday that more studies are needed to confirm the efficacy of Eli Lilly and Avid Radiopharmaceuticals' Amyvid radiopharmaceutical for brain beta-amyloid PET imaging.
PET/CT predicts response to endorectal radiotherapy
January 30, 2013 -- PET/CT results can predict which patients will respond to high-dose-rate endorectal brachytherapy for stage II and III rectal cancer, according to a study presented at the American Society of Clinical Oncology Gastrointestinal Cancers Symposium. The results could pave the way for easier treatments and better outcomes.
PET MPI with flurpiridaz F-18 tops SPECT MPI
January 30, 2013 -- PET myocardial perfusion imaging (MPI) with flurpiridaz F-18 is "safe and superior" to SPECT MPI with technetium-99m for image quality, interpretation, coronary artery disease diagnosis, and patient tolerance of the tracer, according to a study published in the January 29 issue of the Journal of the American College of Cardiology.
MDCT falls short in finding myocardial ischemia
January 29, 2013 -- In a comparison of patients with ischemia detected by SPECT or PET myocardial perfusion imaging, resting electrocardiogram-gated 64-slice MDCT proved "unsuitable" for clinical use, according to a study published in the February issue of the American Journal of Roentgenology.
Joint task force publishes brain amyloid PET criteria
January 28, 2013 -- A task force assembled by the Society of Nuclear Medicine and Molecular Imaging and the Alzheimer's Association has concluded that brain amyloid PET imaging could potentially help diagnose individuals with cognitive impairment if certain conditions are met.
FDDNP-PET shows toll of concussions on retired NFL players
January 22, 2013 -- For the first time, using the radiopharmaceutical FDDNP with PET, researchers at the University of California, Los Angeles have identified abnormal tau proteins associated with repetitive head injury in five former professional football players, according to a study in the American Journal of Geriatric Psychiatry.
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