Molecular Imaging Digital Community
Silicon photomultipliers ideal for PET/MRI
September 11, 2014 -- The introduction of combined PET/MRI scanners was enabled by the replacement of photomultipliers with solid-state PET detectors, such as avalanche photodiodes, which can operate inside the MRI environment.
PET/MRI shows noninvasive imaging power in MI
September 9, 2014 -- PET and MRI each bring advantages for imaging myocardial infarction (MI) and gauging myocardial viability. So it makes sense to do them both in a single exam, concludes a study of 25 MI patients presented last week at the European Society of Cardiology congress in Barcelona, Spain.
Support gathers for FDG-PET/CT in spondylodiscitis cases
September 4, 2014 -- Because of its high specificity and ability to differentiate between infection of the spine and other maladies, FDG-PET/CT should be the first option in suspected cases of spondylodiscitis, according to a Spanish study published online on 4 September.
FLASH irradiation spares healthy tissue
August 28, 2014 -- Ultrahigh dose rate ionizing radiation delivered in submillisecond pulses causes less damage to healthy tissue, with comparable tumor control to that seen from the continuous irradiation used in clinical radiotherapy. That's the conclusion of a preliminary study by researchers in France.
Researchers dial back FDG activity to reduce PET/MRI dose
August 27, 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.
Specialist certification gets easier in Germany
August 22, 2014 -- Changes to the training system are having major implications for radiologists in Germany. In this interview, Dr. Reinhard Loose, PhD, head of the Radiological Protection Commission Working Group of the German Radiological Society, discusses the certification requirements introduced in summer 2012.
Marsden group uses 3D printer to create molecular phantom
July 25, 2014 -- Researchers from one of Europe's top cancer research facilities think they have achieved a technological milestone by successfully developing a patient-specific molecular imaging phantom using a 3D printer, according to a study published in the August issue of Medical Physics.
Dutch use shimming to enhance value of MRI-linac unit
July 17, 2014 -- Only a handful of groups are developing hybrid MRI-linac systems for cancer treatment, but interest in this area looks set to grow after researchers from the Netherlands showed that shimming allows a system to acquire images with good geometric fidelity for all static gantry positions.
4-scan PET/MRI exams improve breast imaging
July 7, 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.
U.K. team reveals progress on intraoperative imaging
June 27, 2014 -- U.K. researchers have reported early success in the development and testing of a high-resolution, compact, hybrid gamma/optical camera designed for intraoperative imaging. They presented their findings at the annual meeting of the Society of Nuclear Medicine Molecular Imaging in St. Louis, U.S.
PET-assessed tumor heterogeneity shows continued promise
June 20, 2014 -- A multi-institutional study from Germany has joined a growing number of evaluations of tumor heterogeneity as a tool to assess cancer treatment responses. This study investigated textural parameters of tumor heterogeneity in F-18 FDG PET/CT images of patients with locally advanced rectal cancer.
Bidirectional scans can boost resolution of 3D images
June 13, 2014 -- The value of optoacoustic or photoacoustic imaging in preclinical research has been established, and German researchers are now working toward clinical translation of the technique. A new study shows a bidirectional scanning approach improves the elevational resolution of 3D images.
SNMMI: New PET tracer detects recurrent prostate cancer
June 12, 2014 -- 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 this week at the Society of Nuclear Medicine and Molecular Imaging (SNMMI) annual meeting in St. Louis.
FDG-PET/MRI fusion differentiates breast masses
June 2, 2014 -- While breast MRI is highly sensitive for breast cancer, its specificity can be a little lackluster. Fusing FDG-PET and breast MRI can help, however, Brazilian researchers reported in an article published online on 27 May in the European Journal of Radiology.
Molecular imaging offers promise on tumor heterogeneity
May 29, 2014 -- New tracers and imaging techniques for the assessment of heterogeneity are emerging fast, especially in the context of examining metastasis and predicting metastatic potential, but there is a significant need for large patient trials and applications, according to researchers at a top U.K. facility.