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September 2008 Blog Posts (86)

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Patient Information: How RFA Works

September 9, 2008 Diagnostic Imaging. Patient Information: How RFA Works -------------------------------------------------------------------------------- At its most basic, tumor ablation is a method of destroying a tumor without major surgery. A needle electrode inserted inside the tumor produces either extreme heat or extreme cold, which destroys the tumor from the inside out. The treatment is focused on a very small area, so only the tumor itself is affected. Your doctor may also choose to… Continue

Added by Diagnostic Imaging on September 9, 2008 at 9:00pm — No Comments

Nuclear medicine dosing for kids varies widely

September 9, 2008 Diagnostic Imaging. Nuclear medicine dosing for kids varies widely -------------------------------------------------------------------------------- A Boston Children's Hospital survey of 16 selected procedures at 13 pediatric hospitals in North America found a wide variation in radiopharmaceutical doses administered during nuclear medicine exams. The report reveals a need for consensus among nuclear physicians on appropriate doses for young patients. Lead author Dr. S. Ted… Continue

Added by Diagnostic Imaging on September 9, 2008 at 9:00pm — No Comments

Most training programs allow techs to secure undergraduate or associate degrees

September 9, 2008 Most training programs allow techs to secure undergraduate or associate degrees American Society of Radiologic Technologists -------------------------------------------------------------------------------- Results from a survey conducted by the American Society of Radiologic Technologists show that 73% of certificate RT education programs have articulation agreements in place with educational institutions that allow their graduates to obtain a bachelor's or associate degree.… Continue

Added by Diagnostic Imaging on September 9, 2008 at 9:00pm — No Comments

Milk outperforms barium as GI contrast medium

September 9, 2008 Diagnostic Imaging. Milk outperforms barium as GI contrast medium -------------------------------------------------------------------------------- Barium simply cannot compete with milk in cost or taste when it comes to contrast- enhanced CT of the gastrointestinal tract, according to Columbia University researchers. Radiologist Dr. Chi Wan Koo and colleagues enrolled 215 consecutive patients scheduled for abdominal and pelvic CT. One hundred received a 0.1% barium suspension,… Continue

Added by Diagnostic Imaging on September 9, 2008 at 9:00pm — No Comments

Hyperpolarized He-3 MRI flourishes in unique role

September 9, 2008 Diagnostic Imaging. Hyperpolarized He-3 MRI flourishes in unique role -------------------------------------------------------------------------------- Radiologists have learned a lot from hyperpolarized helium-3 imaging despite regulatory restrictions limiting its use. An absence of FDA clearance for clinical workups and the scarcity of the gas, a nonradioactive byproduct of nuclear weapons manufacturing, means He-3 MRI will not be coming to a community healthcare facility… Continue

Added by Diagnostic Imaging on September 9, 2008 at 9:00pm — No Comments

European nuclear medicine services respond to technetium supply crisis

September 9, 2008 European nuclear medicine services respond to technetium supply crisis Paula Gould -------------------------------------------------------------------------------- European hospitals and nuclear medicine clinics are taking action to prevent an acute shortage of medical isotopes from harming patients. Ongoing problems with access to technetium-99m are leading to the postponement of nonurgent scans, reintroduction of procedures that had been phased out, and off-label use of… Continue

Added by Diagnostic Imaging on September 9, 2008 at 9:00pm — No Comments

Case of the Month

September 9, 2008 Diagnostic Imaging. Case of the Month -------------------------------------------------------------------------------- CLINICAL HISTORY A 70-year-old woman with a history of microcalcification of the right breast, lumpectomy, and whole-breast x-ray therapy on right side for microinvasive cancer presented for annual digital mammogram. FINDINGS Right breast: Category 3, probably benign finding. Postsurgical changes in the right breast are stable from prior examination on Sept.… Continue

Added by Diagnostic Imaging on September 9, 2008 at 8:30pm — No Comments

Brain MR identifies youth prone to aberrant behaviors

September 9, 2008 Diagnostic Imaging. Brain MR identifies youth prone to aberrant behaviors Cerebral blood flow imaging may eventually help identify young people who need preventive therapy -------------------------------------------------------------------------------- Cerebral blood flow imaging may eventually help identify young people who need preventive therapy Adolescents at relatively high risk for depression and alcohol abuse demonstrate distinct patterns of resting cerebral blood flow… Continue

Added by Diagnostic Imaging on September 9, 2008 at 8:30pm — No Comments

Ultrasound gauges osteoporotic fracture risk

September 8, 2008 Diagnostic Imaging. Ultrasound gauges osteoporotic fracture risk -------------------------------------------------------------------------------- An ultrasound scan of the heel combined with other clinical parameters may predict the risk of fractures in elderly women afflicted by osteoporosis, according to a study from Switzerland. Dr. Idris Guessous and colleagues enrolled 6174 women aged 70 and older at 10 major Swiss osteoporosis centers. Patients underwent a quantitative… Continue

Added by Diagnostic Imaging on September 8, 2008 at 11:00pm — No Comments

Tomographic US spots ventricular septal defect

September 8, 2008 Diagnostic Imaging. Tomographic US spots ventricular septal defect -------------------------------------------------------------------------------- Tomographic ultrasound imaging on 4D volumes of fetal chest obtained with spatiotemporal image correlation and color Doppler shows good retrieval of diagnostic cardiac planes in fetuses with ventricular septal defects, according to an Italian study. Investigators retrospectively evaluated eight fetuses with ventricular septal… Continue

Added by Diagnostic Imaging on September 8, 2008 at 10:30pm — No Comments

Three-T MRI bolsters diagnosis of focal epilepsy

September 8, 2008 Three-T MRI bolsters diagnosis of focal epilepsy H. A. Abella -------------------------------------------------------------------------------- A recent study at the Oregon Health and Science University in Portland has confirmed that 3T MRI improves on 1.5T MRI for detecting and characterizing structural brain abnormalities in patients with focal epilepsy. Senior author Dr. Bronwyn E. Hamilton and colleagues evaluated 74 epilepsy cases. Three-T MRI detected the brain… Continue

Added by Diagnostic Imaging on September 8, 2008 at 10:00pm — No Comments

Thermal effects of fetal US remain uncertain

September 8, 2008 Diagnostic Imaging. Thermal effects of fetal US remain uncertain -------------------------------------------------------------------------------- A study on thermal effects of diagnostic fetal ultrasound could not confirm a causal relationship between exposure and obvious adverse effects. Study authors cautioned, however, that subtle effects cannot be ruled out and called for more research. The report, led by Dr. Jacques S. Abramowicz of Rush University Medical Center, cited… Continue

Added by Diagnostic Imaging on September 8, 2008 at 10:00pm — No Comments

PET finds early coronary disease in diabetic patients

September 8, 2008 Diagnostic Imaging. PET finds early coronary disease in diabetic patients -------------------------------------------------------------------------------- PET may be diagnostically more powerful than ultrasound or CT for identifying early coronary artery disease in patients with type 2 diabetes. Nuclear cardiologist Dr. Thomas Schindler and colleagues at the University of Geneva in Switzerland and the University of California, Los Angeles measured coronary endothelium… Continue

Added by Diagnostic Imaging on September 8, 2008 at 10:00pm — No Comments

Nighthawks prove less popular than fears suggest

September 8, 2008 Diagnostic Imaging. Nighthawks prove less popular than fears suggest -------------------------------------------------------------------------------- Dispelling concerns about teleradiology encroachment, a Yale University survey has found that use of external after-hours services accounts for a small percentage of radiology practices' total interpretations. Lead investigator Dr. Jonathan H. Sunshine and colleagues randomly selected 300 nonspecialty hospitals from the 2005… Continue

Added by Diagnostic Imaging on September 8, 2008 at 9:30pm — No Comments

MR guidance permits more precise localization

September 8, 2008 Diagnostic Imaging. MR guidance permits more precise localization -------------------------------------------------------------------------------- Researchers from the University of Cologne in Germany report that real-time MR-guided wire localization of suspicious breast lesions using an open 1T scanner permits correction of the needle position during placement and reduces interventional procedure time. The study, published in Radiology, monitored needle placement in 30 women… Continue

Added by Diagnostic Imaging on September 8, 2008 at 9:30pm — No Comments

Mammo benefits improve, but recruiting remains big challenge

September 8, 2008 Diagnostic Imaging. Mammo benefits improve, but recruiting remains big challenge Malpractice and reimbursement worries depress supply, as breast experts make up largest pool of vacancies in academic settings BY YOMI WRONG -------------------------------------------------------------------------------- It's been a year since practice manager Lorna Vaughan took out an ad seeking a breast imager to work on the Jersey Shore. To her surprise, a "dream-come-true, fee-for-service,… Continue

Added by Diagnostic Imaging on September 8, 2008 at 9:30pm — No Comments

Learning digital mammography proves difficult but worth the effort

September 8, 2008 Diagnostic Imaging. Learning digital mammography proves difficult but worth the effort John C. Hayes -------------------------------------------------------------------------------- Throughout its 30-year history, Diagnostic Imaging has tracked issues surrounding the adoption and development of new imaging technology. Rarely, however, have we looked closely at the question of the learning curves associated with this new technology. This month marks an exception. Our cover… Continue

Added by Diagnostic Imaging on September 8, 2008 at 9:30pm — No Comments

CT radiation may spark pacemaker malfunctions

September 8, 2008 Diagnostic Imaging. CT radiation may spark pacemaker malfunctions -------------------------------------------------------------------------------- The FDA Center for Devices and Radiological Health has warned imaging services that ionizing radiation from multislice CT scanners can cause implantable devices to malfunction. The incidence of radiation-induced pacemaker and implantable device malfunction has risen in recent years, mostly due to increased multislice CT use, said… Continue

Added by Diagnostic Imaging on September 8, 2008 at 9:30pm — No Comments

CT imaging detects markers of vulnerable carotid plaque

September 8, 2008 Diagnostic Imaging. CT imaging detects markers of vulnerable carotid plaque Advances in angiography using multislice systems take assessments beyond calcium readings and luminal narrowing to artery wall itself BY RAJIV MAGGE, SANDEEP ARORA, MBBS, BRUNO P. SOARES, M.D., BENISON C. LAU, ELIZABETH TONG, AND MAX WINTERMARK, M.D -------------------------------------------------------------------------------- Stroke remains a leading cause of death in the U.S. and is the principal… Continue

Added by Diagnostic Imaging on September 8, 2008 at 9:30pm — No Comments

Great resource for MRI Physics: ReviseMRI.com

We came across a great resource for MRI Physics. If you are a scientist, researcher, resident, radiologist, or anyone who is interested in MRI physics, check out this great website.



"ReviseMRI.com is designed principally as a revision aid, but may also be used as an educational resource. Contents include: detailed Q&A, web-based animated tutorials, interactive learning tools, and links to resources for further reading with nearly every Q&A posed, both in common textbooks and… Continue

Added by radRounds Radiology Network on September 7, 2008 at 6:07pm — No Comments

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