MRI

Honest people don't struggle with themselves about whether they should tell the truth when given the opportunity to lie, as shown in an fMRI brain study of truth telling and prevarication from Harvard University behavioral scientists.

Massachusetts General Hospital researchers are using automated MRI software to detect individuals in the preclinical phase of Alzheimer’s disease with 95% accuracy, according to a cohort study.

The window for giving tissue plasminogen activator is extended from three hours to four and a half hours after the onset of stroke under new guidelines recommended by the American Stroke Association. Results from two large multicenter trials led the group to advise expanding the time window for tPA delivery.

Diagnostic imaging is the focus of 11 of 100 priority research projects identified in an Institute of Medicine report released Tuesday that promises to revolutionize how the clinical efficacy and cost-effectiveness of emerging medical technologies and treatment regimens are determined in the U.S.

Myocardial anomalies detected in long-distance runners after they cross the finish line should not be interpreted as signs of possible heart damage. Using cardiac MR, Canadian investigators have found evidence that these abnormalities are only temporary.

A study by the Medicare Payment Advisory Commission has confirmed what critics of in-office self-referred imaging have long claimed. Physicians who have a financial interest in medical imaging equipment are more likely to refer patients to use it, and they incur higher costs generally than physicians who do not have similar financial incentives.

Patients who experience pain in the lower back are more likely to get an x-ray or CT scan within 28 days if their primary physician works in a larger practice as opposed to a smaller facility, according to a study by the Center for Studying Health System Change. The center also found that patient satisfaction incentives encourage unnecessary imaging.

A poster describing malaria research involving MR images transmitted via fiber and satellite links from sub-Saharan Africa to Michigan State University won a first place award at the Society for Imaging Informatics in Medicine meeting.

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The Access to Medical Imaging Coalition has introduced an attractive new website designed to inform the public about the clinical capabilities and political controversies that surround diagnostic imaging practice.

Financial penalties would be enforced against physicians who frequently recommend inappropriate medical imaging under a set of policy options outlined in a potentially influential report issued April 30 by the Senate Finance Committee.

Clinical low-molecular-weight paramagnetic contrast agents distribute into the intravascular and extracellular fluid space of the body.

InSight buys two Boston area centers

Radiologists and cardiologists may find themselves collaborating more than ever in treating atrial fibrillation. A new study showing the utility of delayed-enhancement MRI may help bridge the gap between the two specialties.

Other headlines:FDA clears perfusion software

Innovation has always been the name of the game for the annual meeting of the International Society for Magnetic Resonance in Medicine. The 17th annual meeting beginning Saturday in Honolulu again showcases MRI science in action. But for this meeting, organizers added new features emphasizing MRI’s clinical applications and capitalizing on new communications technologies to encourage interactions between presenters and attendees at the show.

Inflammation of the upper airways is most often due to the common cold. CT and MRI show complexparanasal sinus anatomy.

Referring physicians and MR imaging centers in Canada could substantially reduce wait times by sticking to standard rules dictating scanning priorities and appropriate clinical indications. Trouble is, according to a study from the University of Calgary, those guidelines already exist but few pay heed.

Other headlines:Agfa comes through on Spanish rolloutGE reaches MR milestoneMindray taps new CFOAlliance reports a profitable 2008

Mountaineering metaphors provided the framework for Sunday’s Josef Lissner honorary lecture: Ode to the liver.

Coughing, shortness of breath, chest pain, chest tightness, and an abnormal breathing pattern are common indications of lung disease. The question is which one?

Other headlines:Philips offers CT and MR customers productivity boostMedicsight upgrades ColonCAD

Rheumatoid arthritis, which affects approximately 2.9 million people in Europe, can be difficult to differentiate from other forms of arthritis. Without an early diagnosis, however, it is impossible to assess the true effect of promising early intervention strategies. Could an alternative diagnostic imaging strategy be the answer?

If radiologists could design the perfect modality for guiding interventional procedures, the resulting technology would undoubtedly produce high-quality images without exposing patients to any ionizing radiation. So given the widespread availability of MRI, why are so many interventions still performed in the angiography suite?

CT and MRI have a vital part to play in cases of head and neck trauma, but it is important to know which modality to use under the clinical circumstances, according to speakers at Friday’s opening session of the minicourse on major trauma.

MR systems used in cardiovascular imaging will inevitably have higher field strengths, including 7T, according to a leading cardiac radiologist.

CT and MRI have a vital part to play in cases of head and neck trauma, but it is important to know which modality to use under the clinical circumstances, according to speakers at Friday’s opening session of the minicourse on major trauma.

New developments in ultrasound and MRI mean that peripheral nerve imaging is easier than ever to perform and may bring higher sensitivity to lesion detection.

In the gleaming technical exhibition at ECR 2009, vendors of MRI systems are showing just how their latest innovations will help turn the imaging examination into a faster, less claustrophobic, and altogether more pleasant experience for the patient.

Yes, size does matter, but it is certainly not the only way to monitor the efficacy of cancer treatment. The way in which lesions are measured is extremely important as well, ECR delegates were told at a special focus session on the assessment of tumor response.