Radiology News
Breast MRI improves cancer staging for newly diagnosed women
May 3, 2010 -- Contrast-enhanced breast MRI finds breast lesions missed on mammography and ultrasound, and can help surgeons plan the best surgical treatment, improving patient outcomes, according to a study presented at the American Roentgen Ray Society meeting this week in San Diego.
Valkyrie software rides to rescue of CT radiation dose dilemma
May 3, 2010 -- An automated software algorithm called Valkyrie that extracts radiation dose information from CT exams and tracks it automatically may help imaging sites better follow patient radiation exposure and avoid overdoses, according to a study presented this week at the American Roentgen Ray Society meeting in San Diego.
PET can help clarify dementia diagnoses
May 3, 2010 -- A study presented at last month's American Academy of Neurology annual meeting showed that adding PET to the clinical investigation of atypical or unclear dementias led to a change of 29% of the initial diagnoses.
Study questions daily chest x-rays for intensive care patients
April 30, 2010 -- Physicians may want to more closely consider the rationale for ordering routine daily chest radiographs on mechanically ventilated patients who lack specific clinical indications that recommend imaging, according to a study published in the May issue of Radiology.
CAD, PACS pairing boosts lung nodule detection, saves time
April 30, 2010 -- The use of computer-aided detection (CAD) technology as a concurrent reader on PACS workstations can improve the performance of inexperienced readers in detecting lung nodules, according to a study from Catholic University in Rome.
Investigational PET agent shows promise for breast cancer
April 30, 2010 -- A new PET imaging agent radiolabeled with the positron-emitting isotope gallium-68 is showing early success in detecting stem cell-like tumor cells in patients with breast cancer, according to a study by researchers from Texas.
FDG-PET uptake linked to risk of acute aortic dissection
April 30, 2010 -- Researchers in Japan have found that uptake of FDG in PET/CT scans of acute aortic dissection is significantly associated with an increased risk of rupture and poor patient outcomes, according to a new study published in the May issue of the Journal of Nuclear Medicine.
Conn. breast density law causes conundrum for mammo sites
April 29, 2010 -- A new Connecticut law that mandates that women undergoing mammography be informed of their breast tissue density rating could spark increased use of ultrasound for breast cancer screening. But are radiologists ready for the additional workload if similar legislation spreads across the U.S.?
CT perfusion distinguishes HCC from other liver lesions
April 29, 2010 -- Radiologists in China are getting more traction out of their CT liver protocols with the use of perfusion dual-source CT (DSCT) exams, taking a bite out of MRI's traditional superiority in the process. DSCT is showing that it can often do a better job in differentially diagnosing hepatocellular carcinoma (HCC), liver metastases, and cavernous hemangioma in the clinical setting.
U.S. children's hospitals reduce CT exam volume
April 29, 2010 -- Have efforts to raise awareness about pediatric radiation dose resulted in a lower volume of CT studies for children in the U.S.? That appears to be the case, according to an article published in the May issue of the American Journal of Roentgenology.
CT calcium scores boost value of cardiac risk factors
April 28, 2010 -- A new analysis of a major cardiac risk study published today in the Journal of the American Medical Association found that CT coronary artery calcium scoring significantly boosts the power of traditional risk factors for predicting adverse cardiac events over the long term.
Medicare cancer imaging grows at twice rate of overall expenses
April 27, 2010 -- Medicare spending on medical imaging for cancer patients grew at twice the rate of overall cancer spending in the U.S. program from 1999 to 2006, with PET expenses growing at the fastest rate, according to a new study in the April 28 issue of the Journal of the American Medical Association.
Digital radiography falls short in lung cancer screening trial
April 27, 2010 -- While establishing the feasibility of digital radiography (DR) for lung cancer screening, a Dutch study has questioned the practicality of DR as a substitute for CT in detecting lung masses, according to a study published in the May issue of Radiology.
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