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AuntMinnie.com Cardiac Imaging InsiderJuly 26, 2011




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Dear Cardiac Imaging Insider,

Lately high-pitch mode has been making inroads in many indications -- especially when the imaging target is moving fast.

Considering all the things that can trigger a scan of the coronary arteries, such as chest pain, assessing the patency of coronary artery stents happens frequently enough that dose needs to be a priority.

In fact, stent assessment is turning out to be a great indication for dual-source high-pitch scanning, according to researchers from Singapore, who examined their patients using an average of less than 1 mSv of radiation.

Get the rest of the story from the recent Society of Cardiovascular Computed Tomography (SCCT) meeting in this issue's Insider Exclusive, brought to you before it appears on the general site.

Even though there are a lot of stents out there, it doesn't make them all necessary, according to another report.

High-pitch coronary CT angiography (CTA) does a great job in children as well, removing some of the worry about choosing CT even when it's the best option, according to another story from SCCT. Find out more here.

In female patients you can also cut the coronary CTA dose by manually displacing the breasts -- which seems sensible enough that everyone should be doing it. According to the story by associate editor Kate Madden Yee, doubling up the dose protection with breast shielding yields even more dramatic results. Find out how much dose the group saved by clicking here.

Coronary CTA using 320-detector rows was also very stingy with dose, according to researchers who compared it directly to 64-detector-row CT in the emergency department. Learn what else they found by clicking here.

For a more comprehensive one-stop cardiac assessment, hybrid PET/CT might be the answer. Ohio physicians are using it to noninvasively differentiate between ischemic and nonischemic cardiomyopathy, among other tasks, according to the story you'll find here.

For that matter, MRI is revealing the signs and secrets of cardiomyopathy, a type of acute heart failure that is triggered by stressful events. Click here for the story by features editor Wayne Forrest, or simply visit our Cardiac Imaging Digital Community for all the news that fits. Please scroll down the page for a heaping helping of more stories too!


Eric Barnes
International Editor
Contact Eric Barnes


Insider Exclusive 

High-pitch stent assessment drives down dose
Physicians in Singapore are evaluating stent patency using extremely low radiation doses with the aid of dual-source MDCT, according to a presentation at the recent Society of Cardiovascular Computed Tomography meeting in Denver.  


Cardiac Imaging Digital Community  

FDA halts CardioGen-82 use, Bracco starts recall

320-slice cardiac CT yields advantages in the ER

Mass. General adheres to cardiac CT guidelines, study finds

Stress MPI may be unnecessary for bariatric surgery patients

'Quick-Look' protocol may improve portable echocardiography exams

Cardiovascular MRI sheds light on cardiomyopathy

Pediatric CT techniques scan hearts in a fraction of the dose

SCCT: Cardiac PET/CTA improves diagnosis and planning

FDA issues warning on cardiac PET tracer

Digisonics nets Nev. contract

MESA results confirm prognostic value of CT calcium scoring

Stress echo spots heart attack, death risk in HIV cases

InfraReDx launches phase II trial

Rcadia prepares automatic calcium scoring

Survey: Fellows need more training in 3D/4D ultrasound

CMS finalizes MRI pacemaker coverage

Toshiba rolls out MR software upgrade

Handheld echo scanner performs well in cardiac assessment

Many U.S. heart stents inappropriate: study

GE teams with Endosense

Lantheus launches phase III flurpiridaz F-18 trial

Nuclear cardiology reporting falls short

Coronary CTA finds more disease in African-Americans

InfraReDx raises $24.1M in financing

Rcadia receives 4 patents

Handheld echocardiography devices don't shorten hospital stay

Treadmill stress tests don't compromise follow-up FDG-PET

Cardium chooses Cedars-Sinai for ASPIRE

Philips wins Texas ultrasound contract

Real-time 3D transesophageal echocardiography enhances mitral valve evaluation

Boston Scientific recalls imaging catheters

GE touts Optison safety study

Echocardiography improves gene therapy

Study finds gender bias in nuclear stress tests

Acusphere reaches deal with FDA

Abnormal CT angiography predicts cardiovascular events

SCCT standardizes cardiac CT terms

Novarad launches NovaCardio at SIIM

Utility of coronary CTA doubtful in low-risk patients

MRI-compatible treadmill images heart defects at stress MRI

Nephrotoxicity risk similar with iso-osmolar or low-osmolar contrast agents

Calcium scoring technique skips separate CT scan

Siemens teams with pharmacy college

Lantheus touts flurpiridaz F-18 results

FDA committee meeting may offer hope for US contrast

High-dose atorvastatin before PCI may prevent contrast nephropathy

Medtronic signs GE veteran Ishrak

Medical firm closes amid probe by Colorado regulators

CT angiography predicts long-term cardiac risk in patients with chest pain

MR angiography with 32-channel coils detects heart disease

Protocol tops scanner model in determining CTA dose

Contrast transcranial Doppler identifies right-to-left shunts in hemorrhagic telangiectasia

Digisonics wins new Utah contract

Medicare to pay for MRI-conditional pacemakers

Cerebral artery disease contributes to stroke risk after CABG

Report: Cardiology PACS market set for growth

Calcium boosts death rate in patients with family history

Philips allies with Corindus

St. Jude to bring Accent MRI pacemaker to Europe

ASNC taps new CEO

ECG-triggered high-pitch spiral CTA accurate, with lower radiation

Osteogenesis imperfecta tied to higher risk of cardiac abnormalities

Sodium bicarbonate helps prevent contrast-induced nephropathy: study

JNM: Cancer patients need cardiac review

ACC news: Coronary CTA, not treadmill, predicts disease

DR Systems nets Pa. order

ACC news: Coronary CTA cuts hospital admissions, costs

Cardiovascular MRI can play key role in noncardiac findings

Closed-loop hydration system protects kidneys from contrast agents

Siemens shows upgraded Acuson SC2000 at ACC

Toshiba touts US scanner features at ACC

GE partners with TomTec for echo at ACC

Royalty Pharma buys rights to Lexiscan, Cubicin

Siemens showcases cardiac IT at ACC

PE defect size on CT correlated to poor clinical outcomes

CME firms team up

Medstreaming debuts cardiology PACS, EMR

Toshiba nets large Infinix-i sale

Digisonics to show iPad features

Merge adds cardiology IT sale

McKesson upgrades Horizon Cardiology

MillenSys upgrades AV software

UltraSPECT touts JNC study

Medtronic readies Resolute trial data

LifeImage signs cardiology practices

Aetna sues NJ doctor over $59,490 echo charge

Toshiba upgrades Infinix-i line

Infinitt inks marketing deal with IBS

Coronary calcium CT scans motivate lifestyle changes

Heart disease screens don't change treatment

ECG helps screen for pediatric heart conditions

Fuji begins shipping decision-support software

Cardiac imaging docs form imaging service

Corindus launches PRECISE trial

Study suggests alternative to invasive heart test

Screening tests for CAD in kidney failure are not entirely equal

Lantheus gets FDA nod for new clinical trial

High-pitch DSCTA often repeated, but dose still lower

Hardware, software advances spark cardiac SPECT progress

CT limited for detection of subtle aortic tears



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AuntMinnie.com Cardiac Imaging Insider July 26, 2011

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