Thoracic Imaging: Page 187

Chest CT protocols reduce dose significantly

By Jerry Ingram

MIAMI BEACH, FL - Currently available technology enables significant reductions in radiation doses for chest CT, according to two studies presented at the American Roentgen Ray Society meeting this week.

May 5, 2004

CAD gets role in new ELCAP lung study

By AuntMinnie.com staff writers

Computer-aided detection will play a major role in a new study on using CT for lung cancer screening starting in June.

April 28, 2004

Separating inflammation from malignancy on thoracic FDG-PET

By Shalmali Pal

Despite its whiz-bang capabilities in imaging cancer patients, FDG-PET scans do have their pitfalls, particularly when it comes to nonmalignant chest abnormalities. In a pictorial essay in the American Journal of Roentgenology, Dr. Syed Asad and colleagues highlighted some of the infectious and inflammatory lesions that may mimic tumor.

April 8, 2004

CE US sonography makes the grade for measuring tumor vascularity

By Ultrasound Review

(Ultrasound Review) Researchers at Vanderbilt University Medical Center recently evaluated tumor growth and proliferation using contrast-enhanced sonography to measure vascularity in implanted tumors.

March 23, 2004

MDCT pulmonary angiogram rules out PE for months

By Eric Barnes

A negative chest CT scan correlates with a very low risk of pulmonary embolism in subsequent months, according to researchers from Ireland. In a study published in the American Journal of Roentgenology, radiologists from the Mater Misericordiae Hospital in Dublin also found that MDCT pulmonary angiography determined the underlying causes of patients' signs and symptoms most of the time.

March 21, 2004

Chest x-ray benefits from CAD for spotting lung nodules

By Radiology Review

(Radiology Review) Computer-aided detection (CAD) enabled improved detection of lung nodules on chest radiographs, according to Japanese radiologists. Researchers at the University of Occupational and Environmental Health School of Medicine in Iseigaoka evaluated the use of a new commercially available CAD system (EpiSight/XR) that performs automated detection of lung cancer nodules.

March 17, 2004

Ultrasound may offer earlier typhoid detection

By Brian Casey

Typhoid fever is endemic in India, being the fifth most common infectious disease in the country. Ultrasound could fill a diagnosis gap and assume a role in the early detection of typhoid, according to results presented by Hyderabad researchers at the IRIA show.

March 11, 2004

Lung nodule analysis makes progress, not perfection

By Eric Barnes

Researchers at the 2003 RSNA meeting examined CT lung imaging beyond the issue of nodule detection, i.e., nodule tracking, analysis, and follow-up using both automated and manual tools. These tasks are far more challenging than detection, of course, so automation's benefits to date are less convincing. Still, important progress is being made.

March 4, 2004

Mouse roars in workstation navigational study

By Eric Barnes

A lowly computer mouse aced the race for best input device in lung CT datasets. In a user study conducted at the University Hospital of Cleveland, the murine contender won out over an array of navigational devices, including a trackball, a video game joystick, a jog-dial, and a gamepad.

February 8, 2004

R2 gets FDA panel nod for lung CAD

By AuntMinnie.com staff writers

A Food and Drug Administration advisory committee panel has voted unanimously to recommend approval for R2 Technology's ImageChecker CT computer-aided detection (CAD) system.

February 3, 2004

Lung CAD makes strides in nodule detection

By Eric Barnes

A survey of the latest nodule-detection studies finds that lung CAD algorithms have evolved to become unmistakably useful to radiologists. In nine studies presented at the 2003 RSNA meeting in Chicago, CAD schemes developed by multimodality vendors and independent firms alike all brought significant sensitivity gains to the tedious job of lung-nodule detection.

January 29, 2004

Foundations laid, CAD technology builds mainstream support

By Kate Madden Yee

Developed more than 30 years ago, computer-aided detection (CAD) technology has continued to evolve as computers have become more powerful. Although clinical applications of the technology have traditionally been limited to mammography, companies are rapidly developing techniques for use with other modalities.

January 12, 2004

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