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MRI
gets high marks for stroke detection
Diffusion-weighted MRI offers superior diagnostic capability
for acute stroke, compared to screening CT scans of the head,
results of a Harvard study suggest.
In one of the largest stroke imaging studies reported to date,
MRI with diffusion-weighted imaging had a 97% sensitivity and
100% specificity for stroke detection. In contrast, an initial
head CT scan had 40% sensitivity and 92% specificity for identifying
acute stroke.
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story
RF
ablation can treat tumors outside the liver
Radio-frequency (RF) ablation of liver tumors has gained considerable
interest from oncologists and interventional radiologists, but
the technique also shows promise in treating extrahepatic tumors,
according to a scientific presentation at the RSNA meeting.
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MRI
tops CT for finding aneurysm leaks
MRI more accurately identifies leaks in abdominal aortic stent
grafts than CT angiography (CTA), and requires further evaluation
as the initial noninvasive imaging modality for that indication,
according to a team of French radiologists.
Full story
New
MRA technique compares well with DSA
New infusion MRA techniques (IMRA) may become diagnostically
acceptable alternatives to digital subtraction angiography (DSA)
for carotid artery examinations, according to an award-winning
scientific exhibit shown at the RSNA meeting.
Full story
Peer-reviewed
case studies come to the Internet
The first of what could become thousands of Internet-based,
peer-reviewed radiology case reports were previewed at an award-winning
infoRAD presentation.
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