RSNA

Interventional guidance is getting a boost at RSNA 2008 through a novel ultrasound system developed by GE Healthcare and a partnership between Philips Ultrasound and interventional workstation developer Traxtal.

The 1.5T Discovery MR450 has joined the GE Healthcare portfolio armed with real-time cardiac imaging, multicontrast abdominal imaging in a single acquisition, and ultra high resolution musculoskeletal scanning at high patient throughput. The company also showcased its 3T Discovery MR750, shown initially last spring at the International Society for Magnetic Resonance in Medicine meeting. The FDA-cleared scanners bear GE’s new “Discovery” moniker, indicating premium performance.

Philips Healthcare is differentiating its PACS at RSNA 2008 by offering a wide variety of ancillary and complementary functions developed by other vendors but presented by Philips as optional software packages geared to work with its iSite system.

Cohort studies presented in a scientific session Sunday showed progress toward employing coronary CT angiography to evaluate the patency of coronary artery stents.

Philips Healthcare unveiled two MR scanners on the RSNA 2008 exhibit floor: one at 3T, the other at 1.5T. Both emphasize productivity and clinical value, albeit by different means.

Digital mammography is more accurate than film for diagnosis of breast cancer in women with dense breasts, according to results from the Digital Mammographic Imaging Screening Trial presented at the RSNA meeting.

Sony has unveiled at RSNA 2008 a printer designed specifically for digital mammography.

Oncology patients have a fourfold risk above the general population of developing pulmonary embolism. If the patient is receiving chemotherapy, the risk is even greater. Irish radiologists have found that imaging these patients with thin-slice CT during routine staging or restaging can pinpoint clinically unsuspected pulmonary embolism.

In Pennsylvania, radiologists 65 and older read significantly more mammograms than any other group, according to an American College of Radiology patterns-of-care study.

Targeted radiation of breast cancer reduces treatment time from six and a half weeks to five days, while reducing pain and improving cosmetic outcome, according to a study presented at the RSNA meeting.

More stringent criteria to evaluate emergency room patients under 40 years of age with suspected pulmonary embolism could decrease radiation exposure while also saving time and money, according to research presented at the RSNA meeting.

Results from papers released Sunday at the 2008 RSNA suggest that a less rigid approach to treatment, coupled with knowledgeable practitioners and judicious patient selection can improve the commercial prospects of outpatient MRI-guided focused ultrasound ablation of uterine fibroids. There are caveats, though.

Emerging opportunities in breast imaging have inspired CoActiv to tailor its Exam-PACS to handle breast-specific gamma imaging files.

Breast MRI can have a positive impact on clinical decision making for African American women with newly diagnosed breast cancer, leading to wider excisions and mastectomies, according to a new study carried out in Ohio. Age is also a factor.

Competition among vendors hawking advanced visualization tools has heated up on the RSNA 2008 exhibit floor with offerings from standard-bearer Vital Images, newcomers ZioStation and FiatLux, and perennial rivals TeraRecon and Visage Imaging.

Magnetoencephalography technology used to study abnormalities in auditory and language processing of autistic children has demonstrated measurable delays, according to a study presented at the RSNA meeting.

Digital radiography specialist IMIX Americas introduced at RSNA 2008 two DR systems and software for processing radiographs. Designed for smaller facilities, the compact SomaRad DR system can be installed in rooms with ceilings only eight feet high. The ChiroRad DR system is tailored to fit chiropractic offices. IMIX workstation software, with an enhanced user interface, allows the seamless integration of digital and computed radiography components and improves workflow.

A new CT scanner built on Siemens’ unique dual-source x-ray technology promises to dramatically reduce dose and eliminate motion artifact in the chest. Using two x-ray tubes and matching detectors, the Somatom Definition Flash, debuted at RSNA 2008, opens the door to routine scanning of the coronaries, according to the company.

Patient comfort during MR and the efficiency of functional MR got a boost at RSNA 2008 with the unveiling by Resonance Technology of enhancements to its CinemaVision audio video systems and FuncLAB automated fMRI image data processor.

Preliminary results from American College of Radiology Imaging Network Trial 6657 show that MRI estimates residual breast cancer disease area better than clinical exams or mammography.

In a bid to extend radiation oncology applications, engineers at Philips Healthcare have widened the bore of the company’s premium Gemini TF PET/CT scanner to create the industry’s first big-bore hybrid. Priced north of $2 million, the Gemini TF Big Bore is scheduled to begin shipping next year. Philips is showcasing the Big Bore this week on the RSNA exhibit floor, and beta testing will begin at the University of Pennsylvania Hospital in the next several months.

Sites saddled with an aging PACS have to worry, at least a little, about the transition to a new one. Homewood, IL-based Laitek considered the problem of getting from PACS A to B in the development of an enhanced data migration package, dubbed Migratek Version 2 Advanced Migration Services, which debuted at RSNA 2008.

If digital radiography beckons but funds are a problem, Viztek may have the answer. The company introduced at RSNA 2008 a turnkey CR/PACS. Its new Opal-MD combines enterprise-level Opal-RAD PACS with Kodak’s Point-of-Care CR. The value-priced package is designed specifically for private practice physicians, yet it will deliver a range of advanced features. These include digital image viewing in multiple exam rooms, image autorouting, CD burning, and film printing.

PET niche developer Naviscan arrived at the RSNA meeting with permission from the FDA to launch its Stereo Navigator, a biopsy guidance feature for its breast-specific PET scanner. Stereo Navigator can localize lesions as small as 2 mm. It uses a stereotactic frame fixed between the scanner’s paddles to guide a biopsy needle into the breast. Localization is verified using a PET-visible line source inserted into the needle track. This allows the user to confirm trajectory and position. The PET-guidance accessory is compatible with biopsy devices from Ethicon Endo-Surgery, Hologic, and SenoRx.

Legal and regulatory issues have a growing impact on how radiologists perform procedures and studies, report results, and structure their practices. Implementing a simple checklist may help to reduce the prospect of being sued for malpractice.

PACS/IT vendor Emageon and teleradiology provider Virtual Radiologic showcased teleradiology products at the RSNA meeting. Emageon’s Outside Study Gateway (OSG) allows facilities to transmit PACS images to a recipient hospital’s PACS. Studies are transmitted securely across a virtual private network, with OSG software automatically performing integrity checks of the data.

The superpremium Discovery CT750 HD (high definition) CT scanner debuted Sunday in the GE Healthcare booth. It features technology shown as work-in-progress at last year’s RSNA meeting that boosts spatial resolution to 230 microns and improves contrast resolution 33% in the body to 21.5 lp/cm and 47% in the heart to 14 lp/cm, according to the company.

Results of a three-year trial at Massachusetts General Hospital show that half of patients presenting with chest pain but at low or intermediate risk of acute coronary syndrome can be safely discharged following a negative 64-slice coronary CT evaluation.

Using surveillance of 6 to 9-mm polyps with CT colonography instead of referring them for immediate colonoscopy and polypectomy provides a significant cost-effectiveness edge, according to a study presented Sunday.

Invivo introduced at RSNA 2008 its sixth-generation vital signs monitor for use in MR suites. The Precess Patient Management Configuration uses the industry’s first wireless ECG and wireless SpO2 patient vital signs. Built on the company’s flagship Precess 3160 platform, the new system features a flexible mounting that allows attachment to anesthesia machines, a wall, or an MRI table.