Mammography

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Despite the increasing availability of commercial computer-assisted detection packages for breast screening, the technology remains unproven in the screening setting, according to a leading U.K. breast radiologist. Prof. Fiona Gilbert, a professor of radiology at the University of Aberdeen, is calling for a Europe-wide randomized control trial to prove the case for CAD as a second reader.

A significant number of breast cancers missed by mammography in the last decade may have been misclassified as benign lesions by ultrasound in the first place, according to a study presented at the 2005 American Institute of Ultrasound in Medicine meeting.

Few radiologists would disagree that computer-assisted detection in the colon has a long way to go before it is ready for routine clinical implementation. But once the remaining technical challenges have been overcome, advocates for CT colonography screening will have a far stronger case, speakers said Friday.

Despite the increasing availability of commercial computer-assisted detection packages for breast screening, the technology remains unproven in the screening setting, according to a leading U.K. breast radiologist. Prof. Fiona Gilbert, a professor of radiology at the University of Aberdeen, is calling for a Europe-wide randomized control trial to prove the case for CAD as a second reader

The true value of widespread mammography screening is a contentious issue, with claims for its success difficult to disentangle from coexisting factors. Now, research from Denmark has produced the strongest evidence to date that screening produces significant re-ductions in breast cancer mortality.

Full-field digital mammography has turned into a superstar of x-ray, doubling in revenue and units shipped last year over 2003. Growth is expected to continue, although the pace may slow as the backlog of ordered systems shrank by year’s end to just 10% more than the number shipped.

The Institute of Medicine has recommended sweeping changes to quality standards now being applied to breast imaging facilities. If Congress, which requested the study, enacts these changes, facilities will face a substantially greater burden in collecting patient data, potentially increasing the need for information technology.

Business Briefs

Siemens closes in on CTI acquisitionAs of May 4, 94% of the outstanding shares of CTI Molecular Imaging had been acquired by Siemens Medical Solutions as part of that company’s bid to acquire the Knoxville, TN, firm. Siemens expects to complete the acquisition through a merger in which all CTI shares not validly tendered will be converted into the right to receive $20.50 per share. CTI would then become a wholly owned subsidiary of Siemens Medical Solutions. CTI Molecular Imaging is a supplier of PET products and services with annual revenues above $400 million and annual income near $60 million.

Refresher courses are among the most popular features of the European Congress of Radiology. The program planners have developed a knack for selecting timely topics and recruiting authoritative speakers. These courses are often better attended than the more trumpeted state-of-the-art, special focus, and New Horizons sessions. Because these courses usually start at either 8.30 a.m. or 4 p.m., the congress organizers may also view them as a subtle way of ensuring that lecture halls are full throughout the day.

Business Briefs

Planar’s Dashboard hits the roadMedical displays are proliferating, appearing not just in radiology but in far-flung corners of hospitals and physician offices. To help PACS administrators manage those displays, Planar has developed the Dome Dashboard software console. This console, which is now commercially available, simplifies the centralized management, monitoring, and control of medical imaging displays. Dashboard alerts administrators when a display slips out of alignment, such as a change in the white level or drop in DICOM calibration conformance.

Many women with early-stage breast cancer undergo successful treatment for the disease. Some women who have been treated, however, may develop recurrent cancers. Imaging surveillance can detect the recurrence in time for treatment.

Women complain that waiting for definitive results after a breast imaging exam is a nerve-racking experience. Staff at one hospital system have identified bottlenecks in the process and have reduced the critical wait time between an abnormal mammogram and a final diagnosis.

Years ago, tomosynthesis was cited as one reason radiology needed digital mammography. A digital detector could be arced around the breast to capture multiple views from different angles, stripping away tissue that obscures cancers. But despite the commercial introduction of digital mammography five years ago, the use of tomosynthesis remains limited to a few isolated medical centers.

Use of digital mammography is routine practice at Allegheny General Hospital in Pittsburgh, although the breast imaging team, headed by Dr. William Poller, is still smoothing out the kinks.

Mercury Computer Systems has emerged from the shadows of medical imaging with a portfolio of advanced processing products and services. The company, which previously served mostly as a supplier of 2D imaging components to major OEMs, has begun shopping 3D and 4D products around the imaging industry. These products vary from software only to software-hardware combinations and are designed to perform critical functions in diagnostic and interventional products, as well as PACS.