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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AEM: CT in the ED is cost-effective for low-risk patients with angina

Using a 64-slice CT scanner is more cost-effective than an overnightstay in the observation unit and cardiac stress testing for patientswith chest pain in an emergency department (ED), according to a studypublished in the July issue of Academic Emergency Medicine.

TeraRecon embeds link for referring physicians to interact with image data

TeraRecon, a provider of advanced cardiac CT interpretation software, introduced new innovations for its Aquarius iNtuition suite of advanced visualization at the Society of Cardiovascular Computed Tomography meeting in Orlando last week.

Congress overrides Bush veto of Medicare bill, repealing physician cuts

 Both houses of Congress Tuesday garnered the two-thirds majoritiesneeded to override the presidential veto of H.R. 6331, the MedicareImprovements for Patients and Providers Act of 2008. The House overrodethe veto by a margin of 383-41 and the Senate by a margin of 70-26,just hours after the president issued the veto.

FDA: X-rays used with CT may cause pacemakers to malfunction

 The FDA Monday issued a preliminary public health notification statingthat x-rays used during CT exams may cause some implanted and externalelectronic medical devices to malfunction. The agency also providedrecommendations to reduce the potential risk.

European telemedicine grows, but high cost stymies widespread adoption

New analysis from market research firm Frost & Sullivan hasrevealed that the European telemedicine market generated revenues of$118 million in 2007 and is estimated to reach $236 million by 2014.

AIM: CAC score tops carotid IMT for predicting cardiovascular disease

While the clinical use of bioimaging tests for subclinicalatherosclerosis remains a topic of debate, coronary artery calcium(CAC) score is a better predictor of subsequent cardiovascular diseaseevents than carotid intima-media thickness (IMT), according to a studypublished in the June 23 issue of the Archives of Internal Medicine.

JNM: Nuclear stress test also delivers data on diastolic dysfunction

A nuclear stress test is generally used to determine if any part of themyocardium is infracted as a result of occluded blood flow from thecoronary arteries. Researchers have demonstrated that the test can alsobe used to predict diastolic dysfunction, according to a studypublished in the May issue in the Journal of Nuclear Medicine.

AIM: Young adults with prehypertension are more likely to develop atherosclerosis

Prehypertension during young adulthood is common and is associated withcoronary atherosclerosis 20 years later, according to a study publishedin the July 15 issue of the Annals of Internal Medicine.

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