Cardiac Imaging

While cardiac ultrasound is the widely used imaging modality for heart assessments, computed tomography (CT), magnetic resonance imaging (MRI) and nuclear imaging are also used and are often complimentary, each offering specific details about the heart other modalities cannot. For this reason the clinical question being asked often determines the imaging test that will be used.

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JNM: Molecular imaging reveals secrets of the heart

Researchers in Germany were able to observe, using PET and SPECT imaging, the repair action of circulating progenitor cells (CPC), immature blood-derived cells capable of developing into adult stem cells, as they successfully preserved healthy heart tissue and corrected blood flow imbalance within the heart.

CT more cost-effective than SPECT in diagnosing CAD

Patients who underwent coronary CT angiography without a priordiagnosis of coronary artery disease incurred lower costs than thosewho underwent myocardial perfusion imaging, according to a studypresented by James K. Min, MD, on Tuesday at the 2008 American Collegeof Cardiology (ACC) meeting in Chicago.

MRI used to guide atherosclerosis treatment

A technique utilizing ultra-small super-paramagnetic iron oxide-enhanced MRI can detect macrophage activity, a sign ofinflammation, and allows clinicians to individualize their treatmentfor atherosclerosis and improve outcomes, according to a studypresented this week at the 2008 American College of Cardiology (ACC)Scientific Sessions in Chicago.

Iodixanol lowers contrast-induced nephropathy for chronic kidney disease

Isosmolar contrast media iodixanol appears to be associated with asignificantly lower incidence of contrast-induced nephropathy andcomposite cardiovascular events compared with the low-osmolar iopromide in patients with chronic kidney disease undergoing coronaryangiography with or without percutaneous coronary intervention,according to a study presented during the 2008 American College ofCardiology (ACC) Scientific Sessions in Chicago.

Circulation: Single CT scan could diagnose heart disease

Researchers at the Medical University of South Carolina inCharleston, S.C., have developed a dual-source CT scanner techniquethat enables comprehensive diagnosis of heart disease based on a singleCT scan, according a report in the March 4 issue of Circulation.

Philips signs seven-year research agreement with Chinese hospital

Royal Philips Electronics has signed a long-term research partnershipagreement with the West China Hospital, an affiliate of the SichuanUniversity in Chengdu, China.

NEJM: Calcium CT scans help predict coronary risk across racial, ethnic lines

A coronary artery calcium score gathered from a cardiac CT scanis a strong predictor of incident coronary heart disease andprovides predictive information beyond that provided by standard riskfactors indicating no major differences between the four major racialand ethnic groups in the United States, according to a study publishedin the New England Journal of Medicine (NEJM).

Stolen NIH laptop contains thousands of cardiac MRI patient records

 A laptop containing medical information of 2,500 patients enrolled in aNational Institutes of Health (NIH) study was stolen in February,potentially exposing seven years' worth of clinical trial data,including names, medical diagnoses and details of the patients' heartscans.

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