July 02, 2008
Article
A survey of children’s imaging services has found a twofold variation in radiopharmaceutical doses administered during pediatric nuclear medicine exams. For some radiopharmaceuticals, the reported maximum activities varied by as much as a factor of 10, and minimum activities differed by as much as a factor of 20, suggesting the need for a consensus among nuclear physicians on appropriate doses for young patients.
February 25, 2008
Article
Unnecessary surgeries for suspected, but ultimately benign, ovarian tumors could be reduced if ultrasonography is improved, according to a recent report in The Lancet Oncology. The study showed that the number of surgeries for suspected cancers was significantly higher after routine ultrasounds compared with ultrasounds performed by sonographers who have more than 10 years of experience.
November 01, 2007
Article
For the first time, researchers have combined functional and anatomic MR imaging to reveal abnormalities in both physiological states in a well-defined subgroup of schizophrenic patients with chronic auditory hallucinations. With the potential to visually pinpoint abnormalities, MRI could prove useful as a diagnostic and follow-up tool to evaluate treatment for people with the disorder, according to lead investigator Dr. Luis Marti-Bonmati, chief of MR at Dr. Peset University Hospital in Valencia, Spain.
October 12, 2007
Article
Functional magnetic resonance imaging has helped University of Washington researchers discover that too much connectivity between the language-processing regions of the brains of dyslexic children may contribute to reading disabilities. Follow-up scans produced functional evidence that these abnormal connectivity patterns were mitigated after only three weeks of specialized reading training.