Cardiovascular Radiology: Page 246

AuntMinnie.com Cardiac Imaging Radiology Insider
By Eric Barnes
April 4, 2006
CTA finds heart disease when calcium score is unreliable
A minimal coronary artery calcium score alone does not reliably detect significant stenoses in patients presenting to the emergency department with chest pain, according to a study presented at the recent American College of Cardiology (ACC) meeting in Atlanta.
April 4, 2006
MRI phase-mapping quantifies regional wall motion
By Eric Barnes
The assessment of myocardial wall motion plays a key role in diagnostic and therapeutic decision-making, but wall motion is extremely difficult to assess quantitatively. Physicians from Oxford University in the U.K. believe they've found a comprehensive and reproducible method of assessing regional wall motion in tissue with phase mapping (TPM) of MRI data, a technique based on phase velocity.
April 2, 2006
Boston Scientific, Guidant deal gets shareholder nod
By AuntMinnie.com staff writers
Interventional device firms Boston Scientific and Guidant said that shareholders of each company have voted to approve their merger.
April 2, 2006
Siemens gets clearance for Axiom upgrades
By AuntMinnie.com staff writers
Multimodality vendor Siemens Medical Solutions of Malvern, PA, has received U.S. Food and Drug Administration 510(k) clearance for a pair of new technologies for its Axiom vascular imaging systems.
March 29, 2006
Guidant suspends Xience V supply
By AuntMinnie.com staff writers
Interventional device firm Guidant said it has decided not to release current inventory of its Xience V everolimus-eluting coronary stent system, as approximately 1% of its current inventory was not manufactured with strict adherence to the company's quality standards.
March 28, 2006
MDCT highly sensitive for aortic dissection
By Eric Barnes
A recent study of patients who underwent MDCT imaging for symptoms suggestive of aortic dissection showed that the modality was highly sensitive and specific for all types of dissection. CT is also faster and generally more accurate than the alternatives, including MRI, ultrasound, and even the invasive gold standard exam, aortography, according to the study authors.
March 28, 2006
Toshiba makes big cath lab install
By AuntMinnie.com staff writers
Multimodality vendor Toshiba America Medical Systems of Tustin, CA, has installed five of its Infinix-i family of catheterization labs at a Michigan hospital.
March 27, 2006
64-slice CTA reliably detects stenoses by patient, less so by vessel and segment
By Eric Barnes
As CT piles on more detector rows, its ability to detect significant coronary artery stenosis is growing apace. Sixty-four-detector CT results are beginning to rival -- though not yet quite equal -- those of the invasive gold standard test, coronary angiography. A new study offers evidence that CT angiography (CTA) finds nearly all patients with significant stenosis, though individual blockages can still be missed.
March 22, 2006
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Positron gets Health Canada nod
By AuntMinnie.com staff writers
PET vendor Positron said that Health Canada had granted approval to use the vendor's mPower PET scanner in oncology and cardiology clinical trials in Canada.
March 21, 2006
Guidant expands California facilities
By AuntMinnie.com staff writers
Interventional device developer Guidant said that it will begin construction on expanded facilities in Temecula, CA.
March 16, 2006
ACC studies examine CTA radiation dose
ATLANTA - Radiation dose from CT heart scans can be reduced with a good scanning protocol, but radiation dose itself can vary greatly based on patient demographics, according to two studies presented at the 2006 American College of Cardiology (ACC) annual meeting.
March 16, 2006
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