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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EHJ: QRS duration a predictor of sudden cardiac death

QRS durationone of several measures of heart function recorded during electrocardiogramscan be a significant predictor of sudden cardiac death, according to a study in the Aug. 17 online edition of European Heart Journal.

AJR: CTA identifies alternative diagnoses beyond negative PE

CT angiography (CTA) can identify abnormalities and injury beyond the pulmonary arteries, including broken bones and heart disease in pediatric patients, according to a study published in the September issue of the American Journal of Roentgenology.

Texas requires payors to cover heart attack screening tests as of Sept. 1

The Texas Heart Attack Prevention Bill, signed into law by Texas Governor Rick Perry in late June, is set to take effect on Sept. 1, and will require insurance companies to pay for heart attack preventive imaging screening tests.

SonoSite to acquire CardioDynamics

SonoSite, a Bothell-Wash.-based supplier of hand-carried ultrasound, has completed the acquisition of CardioDynamics.

Heart: Dual-source CT shows promise in reducing radiation dose

When standard protocols for coronary CT angiography with 16-, 64-slice multidetector CT and dual-source CT scanners are used, the radiation dose is still high; however, imagers can achieve low estimated radiation doses when using optimized and individually adjusted protocols, according to a study in the August issue of Heart.

ACR sets date for cardiac CT proficiency exam

The American College of Radiology (ACR) will offer the first Cardiac CT Certificate of Advanced Proficiency Examination on Sept. 9. The college said it is open to all physicians who meet eligibility requirements and professional experience qualifications.

AJC: CCTA proves more effective, less expensive than coronary angiography

In a real-world clinical setting, the negative predictive value of 64-slice coronary CT angiography (CCTA) is very high and helpful in predicting freedom from events for up to three years, according to a study in the Aug. 15 issue of the American Journal of Cardiology. The researchers also found cost-savings benefits associated with CCTA.

JACC: Cardiac MR reformations help plan pediatric heart surgery

By manipulating a patient's 3D cardiac MR images, physicians can compare how alternative approaches affect blood flow and expected outcomes, and can select the best approach for the patient before entering the operating room, according to research in this month's issue of the Journal of the American College of Cardiology: Cardiovascular Imaging.

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Around the web

Cardiovascular Business
Global shortage of nuclear imaging isotopes may be over

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

Cardiovascular Business
‘A huge win’: CMS significantly increases Medicare payments for cardiac CT

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.

Cardiovascular Business
FDA clears AI tool that flags signs of heart disease in chest CT scans

The newly cleared offering, AutoChamber, was designed with opportunistic screening in mind. It can evaluate many different kinds of CT images, including those originally gathered to screen patients for lung cancer. 

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