Adding delayed CT aids some trauma diagnoses January 21, 2009 -- In the emergency setting, would the routine acquisition of a delayed scan five minutes after contrast lead to better diagnoses of trauma patients? It pays sometimes but not always to acquire the extra scan, say researchers from Italy, who reviewed images from hundreds of cases of organ injuries.
Ultrasound screens for pancreatic cancer in high-risk populations January 19, 2009 -- SAN FRANCISCO - Ultrasound detected small pancreatic cancers even CT and MRI couldn't visualize in a novel Dutch screening program aimed at high-risk patients with a family history of the disease. The researchers hope to transform their pilot study into a multicenter trial aimed at finding pancreatic cancer in high-risk patients while it's still resectable.
MR colonography separates benign from malignant colonic strictures January 16, 2009 -- Dynamic contrast-enhanced MR colonography can readily distinguish benign from malignant strictures of the colon, according to Danish researchers. They said the technique could solve a diagnostic dilemma in patients with suspected colorectal cancer lesions that prevent them from undergoing conventional colonoscopy before surgery.
MRI beats PET for myocardial evaluation in patients with impaired LV function January 9, 2009 -- While MRI is known to detect more myocardial scarring than PET in patients with occlusive coronary artery disease, a new study suggests that contrast-enhanced MRI can make a critical difference in treatment planning for revascularization candidates with severely impaired left ventricular (LV) function.
Study calculates radiation dose risk for infants in Belgian NICU January 8, 2009 -- A Belgian study has shed additional light on the amount of radiation dose delivered to infants in neonatal intensive care units (NICUs). The research provides reference values for NICU radiation dose, and also offers guidance on collecting dose measurements and converting them into organ-dose values.
PET-based F-18 FLT equivocal for leukemia imaging January 7, 2009 -- Researchers in Germany and the U.S. hoped that switching radiopharmaceuticals from FDG might improve PET's performance for imaging leukemia. While they found some benefits to using the new tracer, they also discovered some shortcomings.
FFDM performs well versus analog for screening, studies show January 6, 2009 -- At the RSNA meeting in Chicago, researchers from Europe and the University of California, Los Angeles presented studies that support full-field digital mammography (FFDM) as being equal to or better than analog for screening programs, with users of several different types of FFDM technology reporting good results.
SPECT/CT outdoes planar imaging with lymph nodes January 5, 2009 -- A newly released study in this month's issue of the Journal of Nuclear Medicine has found that SPECT/CT is better than planar imaging in accurately determining lymph node involvement at radioablation performed for thyroid cancer.
Internal mammary node biopsies needed for better RT planning December 31, 2008 -- A large study of breast cancer patients reveals that only 5% of patients with cancer-positive internal mammary nodes who receive radiation therapy (RT) will die of breast cancer recurrence within five years. This survival rate is comparable to patients with positive axillary lymph nodes who receive radiation therapy.