Diagnostic Imaging's Blog

Compression artifacts appear significantly higher in thin-section CT images

August 4, 2008 Compression artifacts appear significantly higher in thin-section CT images Douglas Page -------------------------------------------------------------------------------- Compression artifacts on thin sections are greater than on thick sections in JPEG 2000 compressed chest CT images, according to a new study from Korea. Image compression ratios of 5:1 to 10:1 are acceptable thresholds in compressing lung CT studies. What has not been clear until now, however, is whether these… Continue

Added by Diagnostic Imaging on August 4, 2008 at 9:30pm — No Comments

MR brain mapping assesses response to glioma therapy

August 1, 2008 Diagnostic Imaging. MR brain mapping assesses response to glioma therapy Functional diffusion technique shortens time needed to determine treatment efficiency, make adjustments -------------------------------------------------------------------------------- The first three months after standard radiation therapy for a brain tumor must be hell for patients and their families. The established MacDonald criteria for assessing treatment force them to wait up to 10 weeks for follow-up… Continue

Added by Diagnostic Imaging on August 1, 2008 at 11:30pm — No Comments

Morphological imaging sorts out cystic lesions of pancreas

August 1, 2008 Diagnostic Imaging. Morphological imaging sorts out cystic lesions of pancreas Benign findings require little more than regular follow-up, while malignancies call for closer scrutiny and immediate action BY SHALMALI PAL -------------------------------------------------------------------------------- Cystic lesions of the pancreas tend to be a phenomenon of aging. These lesions tend to be benign, but sorting out the small number with potential for malignancy is important. Dr. R.… Continue

Added by Diagnostic Imaging on August 1, 2008 at 11:30pm — No Comments

Intraoperative angio proves worth for brain surgery

August 1, 2008 Diagnostic Imaging. Intraoperative angio proves worth for brain surgery -------------------------------------------------------------------------------- Results from a decade-long study at the National Brain Aneurysm Center in St. Paul, MN, indicate that angiography to monitor intracranial brain aneurysm clip placement is safe and has altered management in more than one of 10 cases. NBAC chair Dr. Eric Nussbaum and his colleagues reviewed 1025 cases performed at this institution… Continue

Added by Diagnostic Imaging on August 1, 2008 at 11:30pm — No Comments

Incidental adrenal masses almost always prove benign

August 1, 2008 Diagnostic Imaging. Incidental adrenal masses almost always prove benign -------------------------------------------------------------------------------- Clinical experience with nearly 1000 patients suggests incidental adrenal tumors detected during abdominal CT scans are almost always benign. Dr. Julie H. Song, a radiologist at Rhode Island Hospital in Providence, and colleagues retrospectively reviewed data from 973 patients who had no history of malignancy or clinical… Continue

Added by Diagnostic Imaging on August 1, 2008 at 11:30pm — No Comments

GE's first high-definition CT enters clinical operation

August 1, 2008 Diagnostic Imaging. GE's first high-definition CT enters clinical operation High-resolution images and a broad spectrum of x-ray energies address novel questions ------------------------------------------------------------------------------- GE Healthcare's LightSpeed CT750 HD began operating in late May at a luminary site near the company's Wisconsin R&D offices. It is the first in a planned network of beta clinical sites slated to put the ultrapremium CT through its paces… Continue

Added by Diagnostic Imaging on August 1, 2008 at 11:30pm — No Comments

FDA mulls over breast cancer ablation registry

August 1, 2008 Diagnostic Imaging. FDA mulls over breast cancer ablation registry -------------------------------------------------------------------------------- The FDA is considering a national registry for thermal ablation treatment of breast cancer. The proposed registry would compile information on all thermal ablation devices and therapies for small carcinomas and address inconsistencies that potentially diminish the value of previously published feasibility protocols. It would also lay… Continue

Added by Diagnostic Imaging on August 1, 2008 at 10:30pm — No Comments

Exhibitors highlight revved-up MR performance, new applications

August 1, 2008 Diagnostic Imaging. Exhibitors highlight revved-up MR performance, new applications Vendors at ISMRM meeting show off new technologies developed to improve workflow, patient comfort and to sell in a saturated market Greg Freiherr -------------------------------------------------------------------------------- The International Society for Magnetic Resonance in Medicine is geared toward the eggheads of MR: the knob twisters who squeeze as much from their clinical scanners as they… Continue

Added by Diagnostic Imaging on August 1, 2008 at 10:30pm — No Comments

Dual-energy CT captures subtle pancreatic masses

August 1, 2008 Diagnostic Imaging. Dual-energy CT captures subtle pancreatic masses -------------------------------------------------------------------------------- Increased speed and improved visualization help pinpoint lesions at earlier, more treatable stage Faster and better visualization are the main reasons to use dual-energy CT for the assessment of pancreatic masses, according to a presentation at the Stanford International Symposium on Multidetector-Row CT in Las Vegas. Dr. Anno… Continue

Added by Diagnostic Imaging on August 1, 2008 at 10:30pm — No Comments

Diffusion-weighted MRI moves beyond brain to other body parts

August 1, 2008 Diagnostic Imaging. Diffusion-weighted MRI moves beyond brain to other body parts Monitoring water mobility offers an approach to cancer imaging that complements anatomy-based techniques without their radiation risks BY VINCENT VANDECAVEYE, M.D., FREDERIK DE KEYZER, M.SC., AND ROBERT HERMANS, M.D., PH.D. -------------------------------------------------------------------------------- MR imaging can be used for many applications in oncology. Its main roles in cancer imaging are… Continue

Added by Diagnostic Imaging on August 1, 2008 at 10:30pm — No Comments

Diagnostic Imaging North America - August 2008

August 1, 2008 Diagnostic Imaging North America - August 2008 -------------------------------------------------------------------------------- COVER STORY By: Jayant A. Talwalkar, M.D., MPH, and Meng Yin, Ph.D MR elastography inspires new wave of hepatic imaging Diffusion-weighted MRI moves beyond brain to other body parts Exhibitors highlight revved-up MR performance, new applications DEPARTMENTS Agenda By: Yomi Wrong Aunt Edna is key to secret family recipe for connecting with readers… Continue

Added by Diagnostic Imaging on August 1, 2008 at 10:30pm — No Comments

CT lung screening offers moderate benefit to smokers

August 1, 2008 Diagnostic Imaging. CT lung screening offers moderate benefit to smokers Modeling estimates increase in cancer detection, but randomized trials will offer final word -------------------------------------------------------------------------------- A new study finds that CT screening can reduce lung cancer mortality among smokers but will not protect them from the other adverse effects of lighting up. Results from an evaluation of the long-term efficacy of screening fell between… Continue