Shalmali Pal[email protected]MRIBetter enhancement, fewer artifacts seen with certain -- but not all -- MR contrast agentsTwo new studies evaluated three different MR contrast agents for brain and spinal imaging. In the first study, a multi-institutional group compared two gadolinium-based contrast agents for the enhancement of central nervous system (CNS) lesions. In the second, researchers tested a half-life gadolinium-based contrast agent in functional MRI (fMRI).September 4, 2006Radiation Oncology/TherapyRe-excision of margins reduces risk of local breast cancer recurrence after radiotherapyClose or positive margins in breast-conserving treatment are indicative of a greater risk for residual disease upon re-excision, but cannot be used to predict the extent of disease or whether radiotherapy will result in disease control, cancer specialists report in a new study.August 29, 2006MRIPrototype MR unit offers fine spatial, temporal resolution -- sans magnetInexpensive, compact, and mobile are three words that are rarely associated with MRI. But researchers in California have designed an experimental MR system that uses optical atomic magnetometry instead of a superconducting magnet and cryogenics, which could one day lead to a new breed of portable MR units, as well as the ability to image in the presence of metal implants.August 27, 2006MRIAuntMinnie.com MRI InsiderAugust 27, 2006CTBreast MRI takes on CT in hepatic lesions and intraductal carcinomaTwo new studies have examined the role of MRI and CT in breast cancer and subsequent metastatic disease. Radiologists in New York City sought to find out whether MRI should be used to differentiate benign and malignant lesions in patients with indeterminate CT findings. And Japanese researchers pitted MRI against multidetector-row CT (MDCT) for determining the lesion margins for surgical removal. They found that one modality was superior to the other.August 24, 2006CTOvarian metastasis shows distinct CT features in stomach versus colon cancerMost nongenital cancers that spread to the ovaries originate in the gastrointestinal tract. Making the distinction between primary and metastatic ovarian tumors is essential for proper patient care, according to a study in the September issue of the American Journal of Roentgenology.August 22, 2006MRIMR arthrography typifies cam and pincer FAI for intracapsular hip surgeryFemoroacetabular impingement (FAI) is one of the causes of premature osteoarthritis in the hip, and occurs when there is a conflict between the proximal femur and the acetabular rim. MR arthrography is particularly useful for the presurgical assessment of existing damage within the joint, according to radiologists and orthopedists in Switzerland.August 21, 2006Molecular ImagingPreop FDG-PET spots axillary involvement in breast cancer, may obviate biopsySurgeons should consider breast PET studies to determine if they can skip biopsy and proceed straight to axillary lymph node dissection (AND), according to a study in the Archives of Surgery. But the study authors cautioned that the PET exam must predict positive nodes with 100% specificity.August 20, 2006Womens ImagingAuntMinnie.com Women's Imaging InsiderAugust 20, 2006MRIMRI, US take on diagnostic challenge of PAI in soccer playersFor soccer players, the ankle is subjected to chronic forces while jumping, running, and kicking. As a result, chronic ankle pain is a common problem. Clinical exams and imaging (x-ray or CT) may or may not tell the whole story in posterior ankle impingement (PAI), which can be serious enough to keep a player off the pitch. Recent studies from Canada and the U.K. have outlined the MR imaging abnormalities that are seen in PAI, as well as the role of ultrasound for guiding therapeutic injections.August 17, 2006Previous PagePage 20 of 100Next PageTop StoriesMolecular ImagingPET scans tie fast food to altered blood flow in the heartUltraprocessed foods may acutely affect vascular and brain function, researchers report.AIAI boosts rads' identification of incidental PE on CT imagingPractice ManagementHow are technologists dealing with higher vacancy rates?UltrasoundUltrasound screening for vasa previa tied to better pregnancy outcomesDigital X-RayAI could be cost-effective for osteoporosis screening
