Perfusion imaging: The future of CT?
CT scanners now nicely cover morphology. The challenge is moving to CT functional imaging without frying patients
Contrast agents
PET/MR: The opportunities are almost unlimited
MRI has become the gold standard for many indications in cardiac imaging, apart from imaging the coronary arteries. For function and morphology assessment, MRI is the leading technology. A further advance into as yet unknown territory is myocardial imaging aided by one of the first integrated 3-Tesla PET/MR systems currently used at the Institute of Radiology, Essen University Hospital,…
Toshiba boosts CT scanning to maximum performance
The new Aquilion ONE ViSION is the widest, fastest, thinnest-slice CT ever built, capable to pushing both anatomical and functional studies to new levels.
Ultrasound-MRI fusion advances prostate therapy
Prostate cancer is the second leading cause of death among men yet remains one of the most frustrating for physicians to find and treat. Merging the strengths of imaging modalities helps, but does not solve all the problems, says John Brosky
Building a clinical case for contrast-enhanced ultrasound
Adding micro-bubbles to the blood lights up the body for ultrasound scanners. Non-invasive, non-toxic and low-cost, these examinations present a disruptive, readily accessible technology for diagnosing disease. John Brosky reports
In their infancy but new PET tracers have a rich future
Dr Peter Choyke, Chief of the Molecular Imaging Programme at the National Cancer Institute in Bethesda, USA, believes that new tracers will have an evolving role to play and represent an exciting development in the imaging of cancers.
The impact of imaging on personalised cancer medicine
Enormous technical developments over recent decades, along with greater understanding of tumour biology, have made imaging, pathology and laboratory medicine indispensable tools in personalised cancer treatments.
What´s new in ultrasound and contrast agents?
Critical ultrasound, as a tool for immediate therapeutic decisions, and emergency POC ultrasound – an extension of the clinical examination at the bedside or on the accident scene – have shown clear benefits along with lung ultrasound.
Phase-contrast imaging will revolutionise X-rays
This may sound like science fiction, but computed tomography with reduced radiation exposure and the highest soft tissue contrast is likely to be a reality -- very soon. Named phase-contrast imaging, the method is an invention of Professor Franz Pfeiffer, Chair of Biomedical Physics at Munich Technical University, Germany. We asked him to explain the implications this development has for…
Contrast-enhanced ultrasound - the benefits for children
For the paediatric radiologist an ultrasound system is as essential as a wrench for the mechanic, for three reasons, says Professor Michel Claudon, Head of the Department of Radiology at the Children's Hospital of Brabois, University of Nancy, France: ‘High image quality due to the low weight of children, which allows medium frequency, the absence of radiation and the possibility of performing…
Three questions for WFUMB Honorary Lecturers …
World of Ultrasound met Prof. Ioan Sporea, Prof. Gebhard Mathis and Prof. Byung Ihn Choi to ask them three questions.
Bringing contrast into play
Although many new features in US-guided interventions are being marketed, which are really necessary, which just nice-to-have? It’s a question to be faced by experts during the refresher course ‘Interventional ultrasound’ at WFUMB 2011. One of the most established ultrasound techniques in minimally invasive procedures is contrast enhanced ultrasound (CEUS) – a tool that is safe, gentle…
Microbubbles in tumour therapy
Contrast agents have opened up entirely new possibilities are taking shape for ultrasound, above all in oncology. Following the publication of guidelines on the clinical use of contrast-enhanced ultrasound (CEUS) by the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) in 2004 and 2008, at this year’s World Ultrasound Congress, WFUMB and EFSUMB will present joint…
WFUMB: A trip through time and space
Around 700 international experts met in Vienna to discuss the latest advancements in ultrasound, such as a new technique called real time imaging, and of approximately 200 scientific papers. That was back in 1969 when for the first time physicians and scientists from around the world came together in Austria’s capital to share their knowledge of the use of ultrasound waves in medicine. The…
Contrast enhanced tumour studies
Medical imaging has recently advanced so rapidly that it should halt. Applying more power to computed tomography (CT) and magnetic resonance imaging (MRI) scanners is becoming too dangerous for patients and healthcare workers. Magnets for the next-generation MRIs are so powerful that they must be moved to a separate building on hospital campuses, while CT radiation levels have risen to alarming…
Contrast-induced nephropathy
Contrast induced nephropathy (CIN) is widely recognised as a potentially serious complication of contrast media use -- a risk that increases with a patient’s age and decreased renal function. Mark Nicholls reports
How low can the dose be?
Michael Maher, Professor of Radiology at the University Collage, Cork, Ireland, produced an answer to during a GE Healthcare Lunch Symposium at the European Congress of Radiology this March. It is 1.2 millisievert – at least for abdominal CT scans of Crohn’s disease patients.
Bayer to Present Data on Oncology Pipeline
Bayer HealthCare announced that the company will present preclinical data that introduce investigational compounds for both therapy and imaging in its early oncology pipeline with unique and novel mechanisms at the American Association for Cancer Research (AACR) 102nd Annual Meeting, April 2-6, 2011, in Orlando, FL.
Trans-rectal quantitative Shear Wave Elastrography
Prostate cancer is the 2nd leading cause of cancer death in men. It is also the most common diagnosed malignancy in men with near 190.000 new cases in the USA in 2008. Despite the larger use of biological tests (such as prostate specific antigen (PSA)) and imaging modalities (trans-rectal ultrasonography (TRUS) and Magnetic Resonance Imaging (MRI)), there is a slight increase in the annual death…
Ultrasound exam tests chemotherapy effectiveness
A multi-centre French study is demonstrating that a four-minute ultrasound scan using a contrast agent can be performed after the first month of treatment and provide quantitative proof of whether a tumour is responding to the therapy.
Modern radiological diagnostics for the evaluation of muscle diseases
Muscular diseases belong to a heterogeneous group with various causes like neurogenic, metabolic, dystrophic, or inflammatory mechanisms as well as channelopathies leading to disorders of the muscle cell membrane potential. In most progressive disease cases the result is a focal or general muscle weakness that, unfortunately, is a very unspecific symptom. Standard neuromuscular literature…
RSNA 2010 Refresher course: A focus on major contrast agent issues
The 90-minute refresher course ‘Contrast Agent Issues 2010: What the Experts Really Do for Allergies, Contrast-induced Nephropathy, Nephrogenic Systemic Fibrosis, and Extravasation’, to be held during this year’s Radiological Society of North America meeting, will focus on the use of iodinated and gadolinium-based contrast media and the issues, advantages and considerations for patient…
Digital mammography with contrast-enhancement
Standard mammography is the most relevant diagnostic tool to address breast cancer: It shows excellent image quality, a smooth workflow, high connectivity and a very good clinical outcome in terms of sensitivity and specificity. However, there are certain shortcomings to it, especially in dense breast tissue.
Re-inventing mammography
The overall success of MRI in diagnosing breast cancer and the exploding demand for breast MRI, in particular, have caused a scanner shortage in much of Europe. Dr Jean-Pierre Pruvo, Chairman of the French Society of Radiology, recently raised the alarm: ‘We have hundreds of thousands of women in France at risk for breast cancer, yet we do not have the means to provide a breast examination by…
Single Shot Spectral Imaging
The limitations of mammography are well documented, yet it is still the gold standard in breast cancer detection - particularly due to the positive cost-benefit ratio. Due to prohibitive costs, MRI exams are performed only in well-defined cases. The HIGHREX project (www.highrex.eu) aims to evaluate Single Shot Spectral Imaging (SSSI) technology for use in mamma diagnostics.
