Molecular Imaging Digital Community
Jury's still out on clinical impact of resting-state fMRI studies
October 7, 2013 -- For radiologists, performing and evaluating resting-state functional MRI (fMRI) examinations will require education, availability of specific data treatment programs, and a sound understanding of the functioning of the brain in health and disease in order to make a correct decision about the patient's condition.
New Dutch data look set to enliven ESMRMB congress
October 2, 2013 -- The results of a Dutch population study, to be discussed at this week's European Society for MR in Medicine and Biology (ESMRMB) meeting in Toulouse, France, show that intraplaque hemorrhage is a stronger indicator of a cardiovascular event than plaque fat content.
Study: PET/CT often changes therapy in recurrent melanoma cases
September 30, 2013 -- In the right hands, PET/CT has a significant clinical impact on management decisions in more than 40% of patients with recurrent stage III/IV malignant melanoma by detecting additional sites of distant metastatic disease and characterizing indeterminate CT findings.
Ultrasound imaging: No need to touch
September 26, 2013 -- Noncontact ultrasound imaging, in which the transducer is separated from the skin by air, has been achieved in vivo by researchers. The group is cautiously optimistic about a clinical future for the technique, which uses a tightly focused high-intensity beam to generate tomographic images.
PET/MRI shows growing edge over PET/CT in oncology
September 23, 2013 -- FDG-PET/MRI more accurately evaluated and more often changed the management of patients with various forms of cancer in a comparison with PET/CT, according to preliminary research conducted in Naples, Italy, and the U.S.
PET in motion: Imaging awake subjects
September 19, 2013 -- Advanced motion mitigation methods enable neurological PET studies of awake, continuously moving subjects, according to research presented at the 20th International Conference on Medical Physics held in Brighton, U.K.
Implanted ultrasound device opens up blood-brain barrier
September 9, 2013 -- The blood-brain barrier prevents most drugs from entering the brain and is a major obstacle in the use of chemotherapy to treat brain tumors. Applying focused ultrasound pulses, combined with microbubble-based ultrasound contrast agents, can temporarily open the barrier and enable drug penetration, according to researchers from France.
ESC: Imaging prior to noncardiac surgery may not be needed
September 4, 2013 -- AMSTERDAM - The value of medical imaging prior to noncardiac surgery for preoperative cardiac risk assessment may have been overstated. Importantly, guidelines issued in 2009 are considered insecure and may need to be rewritten, according to an expert at this week's European Society of Cardiology (ESC) meeting.
Dutch evaluate strategies for harmonization of PET/CT studies
August 26, 2013 -- PET quantification based on standardized uptake values (SUV) can be hampered by variability in imaging procedures between institutes participating in multicenter FDG PET/CT trials. To address the issue, researchers in the Netherlands have evaluated harmonization strategies that reduce SUV variability.
FDG-PET changes treatment, staging for Merkel cell carcinoma
August 15, 2013 -- Australian researchers found that FDG-PET scans changed the management plan for more than one-third of patients with Merkel cell carcinoma and altered the disease stage in approximately one in five cases, according to a study in the August issue of the Journal of Nuclear Medicine.
How molecular techniques can transform abdominal oncology
August 12, 2013 -- Molecular imaging is enhancing assessment of therapy response and facilitating risk-adapted, personalized therapy in malignancies. Moreover, research on exploiting the specific molecular features of tumors can translate into better clinical care.
Spanish team creates PC database for adverse events
August 5, 2013 -- Radiopharmaceuticals can interact with drugs and other agents with sometimes detrimental consequences. What if there were a downloadable database that categorized such interactions? Spanish researchers have created one, calling it Datinrad.
Radiologists urged to play more prominent role in dementia
July 31, 2013 -- Radiologists must contribute more actively to an early diagnosis of cognitive decline that will help with the selection of at-risk patients for clinical trials and improve patient outcomes, top Swiss experts have stressed.
MRI in the face of economic adversity: Where next?
July 29, 2013 -- MRI has been the flagship of diagnostic imaging since its conception in the mid-1970s. In 2012, demand for MRI equipment drove market revenues of 693 million euros in Europe, Middle East, and Africa annually. Yet with increasing cost pressure, is there a risk of stalling innovation?
FDG-PET, DWI-MRI help predict osteosarcoma chemo response
July 25, 2013 -- Combining FDG-PET/CT and diffusion-weighed MRI (DWI-MRI) may be useful for predicting the histologic response of osteosarcoma to neoadjuvant chemotherapy, according to a study published in the July issue of the Journal of Nuclear Medicine.
MRI method images glucose uptake in vivo
July 18, 2013 -- Altered glucose metabolism is associated with a range of pathological conditions. In particular, solid tumors have more glucose consumption compared with healthy tissue -- a feature that can be used for tumor detection, monitoring disease progression, and evaluating therapy response, U.K. researchers found.