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All Blog Posts (2,429)

Thrombolysis Proves Effective Outside the 3-Hour Window

January 23, 2008

Diagnostic Imaging.

Thrombolysis Proves Effective Outside the 3-Hour Window

Delayed treatment outcomes compare with early CT thrombolysis if diffusion-perfusion mismatch is present

Dee Rapposelli

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MRI-assisted thrombolysis is as good as and perhaps better than CT-assisted thrombolysis, and it may be particularly valuable for patients treated outside of the prescribed… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:30pm — No Comments

Researchers Strengthen Case for MRI as Acute Stroke Modality of the Future

January 23, 2008

Diagnostic Imaging.

Researchers Strengthen Case for MRI as Acute Stroke Modality of the Future

Prospective single-site study sets stroke community buzzing about performance of MR imaging versus unenhanced CT for triage of stroke type and severity

Jordana Bieze Foster

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In the weeks leading up to the 2007 International Stroke Conference, stroke imaging experts could have… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:30pm — No Comments

Perfusion adds clinical value to CT evaluation of stroke

January 23, 2008

Diagnostic Imaging.

Perfusion adds clinical value to CT evaluation of stroke

Research results promise to combine speed of CT and prognostic power of MR imaging in a single package

James Brice

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The National Institute of Neurological Disorders and Stroke (NINDS) study of MRI and CT for emergency stroke assessment1 redefined the roles of the 2 imaging modalities most… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:30pm — No Comments

Penumbral Imaging Propels Trials Toward Wider Therapeutic Window

January 23, 2008

Diagnostic Imaging.

Penumbral Imaging Propels Trials Toward Wider Therapeutic Window

More than a decade after the last FDA approval for a stroke drug, vampire bat saliva navigates process using updated techniques

Jordana Bieze Foster

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It's been a long, frustrating 12 years since an acute stroke drug last won over the FDA, a time in which the percentage of eligible… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:30pm — No Comments

New tool facilitates fusion and visualization of multimodal studies

January 23, 2008



New tool facilitates fusion and visualization of multimodal studies

Douglas Page

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Multimodality visualization of pathologies is often preferable to single-modality studies, yet little research has been devoted to the fusion of registered multimodal imaging studies.



Researchers at the Rochester Institute of Technology recently announced the availability of Fusion… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:00pm — No Comments

MRI's predictive value may depend on patient selection

January 23, 2008

Diagnostic Imaging.

MRI's predictive value may depend on patient selection

Severe stroke patients could see greatest benefit from additional imaging information

Jordana Bieze Foster

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It's one thing for acute stroke imaging to predict final infarct volume or a patient's risk of 90-day mortality. It's quite another for imaging to predict whether a patient will recover… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:00pm — No Comments

MRI of TIA faces barrier of therapeutic limitations

January 23, 2008

Diagnostic Imaging.

MRI of TIA faces barrier of therapeutic limitations

Screening tool may be ahead of its time, as results of recent trials fail to keep up with imaging advances

Jordana Bieze Foster

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A growing body of research indicates that MR diffusion-weighted imaging (DWI) can help predict risk of recurrent stroke in patients presenting with transient ischemic… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:00pm — No Comments

Guidelines Stimulate Explosive Growth of Certified Stroke Centers

January 23, 2008

Diagnostic Imaging.

Guidelines Stimulate Explosive Growth of Certified Stroke Centers

Many hospitals seek certification, but few offer comprehensive services needed to triage and treat the most severe cases

Karen Sandrick

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Significant advancements have been made in the prevention and treatment of acute brain attack over the past few decades. Nevertheless, stroke is… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:00pm — No Comments

DWI Shows Some Potential to Predict Post-TIA Stroke Risk

January 23, 2008

Diagnostic Imaging.

DWI Shows Some Potential to Predict Post-TIA Stroke Risk

Evidence of brain injury is most prevalent in patients with physical symptoms and long duration of symptoms

Dee Rapposelli

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An acute diffusion lesion is evident in one third of patients who have had a transient ischemic attack,1 and those patients may be at higher risk for stroke,2 according to… Continue

Added by Diagnostic Imaging on January 23, 2008 at 7:00pm — No Comments

Follow-up care of incidental brain findings draws criticism

January 22, 2008

Diagnostic Imaging.

Follow-up care of incidental brain findings draws criticism

C. P. Kaiser

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The number of brain MR scans obtained in the clinical and research setting increases each year, as scanner equipment and scanning protocols become ever more sensitive to subtle abnormalities. Many of these incidental findings are low risk and do not need rigorous imaging follow-up.… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:30pm — No Comments

FDA warning flummoxes ultrasound contrast trial

January 22, 2008



FDA warning flummoxes ultrasound contrast trial

Notice catches AIUM off guard as both parties had agreed about noncardiac use of microbubble agents

James Brice

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Plans for a clinical trial designed to overcome long-standing regulatory obstacles to the general clinical use of ultrasound contrast media in the U.S. have been knocked off track by an FDA-mandated black box… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:30pm — No Comments

Expectations for tomosynthesis debut rise amid nagging doubts

January 22, 2008

Diagnostic Imaging.

Expectations for tomosynthesis debut rise amid nagging doubts

Hologic targets 2008 release, but other vendors defer, citing clinical questions, regulatory issues, and technological uncertainties

Greg Freiherr

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Not since the height of the CT slice wars have vendors said so much about products that were so far from market. They have been talking up… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

DWI breaks new ground in pelvic MR imaging, staging

January 22, 2008

Diagnostic Imaging.

DWI breaks new ground in pelvic MR imaging, staging

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Several studies released at the 2007 RSNA meeting suggest that diffusion-weighted MR imaging could one day become a routine exam for noninvasive characterization and staging of uterine tumors, replacing unnecessary catheter or surgical biopsies.



Dr. Nagaraj S. Holalkere and colleagues at… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

Digital breast tomosynthesis cuts callbacks, aids detection

January 22, 2008

Diagnostic Imaging.

Digital breast tomosynthesis cuts callbacks, aids detection

Positive study from Netherlands stands out in finding no difference between conventional and new technology

Sarah Jersild

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Digital tomosynthesis detects more breast masses, better categorizes those masses, and produces lower callback rates than conventional mammography. In a study of… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

Demand skyrockets for digital mammography

January 22, 2008

Diagnostic Imaging.

Demand skyrockets for digital mammography

Vendors struggling to keep up with orders look for ways to boost production and beat backlogs

Greg Freiherr

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While demand for MR and CT equipment languishes, digital mammography is enjoying a heyday with no end in sight. When the final numbers are tallied, vendors expect to have shipped twice as many… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

CTA seeks niche triage role in unstable angina patients

January 22, 2008

Diagnostic Imaging.

CTA seeks niche triage role in unstable angina patients

If multislice CT can rule out obstructive coronary artery disease, time and cost of care would be reduced and risk stratification improved

Francesca Pugliese, M.D., and Gabriel P. Krestin, M.D., Ph.D.

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Coronary CT angiography has been found to be a powerful tool to evaluate patients suspected of… Continue

Added by Diagnostic Imaging on January 22, 2008 at 9:00pm — No Comments

CT shines for head and neck vascular trauma

January 22, 2008

Diagnostic Imaging.

CT shines for head and neck vascular trauma

Time-efficient whole-body CT for blunt cervical arterial injury delivers less dose than focused CT angiography

Sarah Jersild

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The use of multislice CT angiography has increased detection of vascular injury in patients suffering head and neck trauma, prompting debate on whether whole-body screening or… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

CT perfusion expands stroke care options

January 22, 2008

Diagnostic Imaging.

CT perfusion expands stroke care options

H. A. Abella

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New CT perfusion scanning techniques that are safer and faster than older CT protocols could offer a practical imaging alternative to MR perfusion for stroke patients, according to two studies presented at the 2007 RSNA meeting. Findings also emphasize a new trend for widening the window for… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

Computer illiteracy relates to age, stress, and persona

January 22, 2008

Diagnostic Imaging.

Computer illiteracy relates to age, stress, and persona

Smiles can help radiologists deal with technological advances, while frowns can be disadvantageous

C. P. Kaiser

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While stress and personality have a well-established relationship with one another, they were also found to have a strong relationship to computer literacy within the radiologist… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

Commoditization situates specialty at crossroads

January 22, 2008

Diagnostic Imaging.

Commoditization situates specialty at crossroads

John C. Hayes

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Radiology is at a crossroads, according to three prominent radiologists who have followed the specialty's digital revolution and evolution of practice. Their message was characterized by the RSNA as "a warning and a challenge."



The transformative impact of technology was at the… Continue

Added by Diagnostic Imaging on January 22, 2008 at 8:30pm — No Comments

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