Chest Radiology: Page 189

R2 adds pulmonary artery patency exam tool

By AuntMinnie.com staff writers

Computer-aided detection (CAD) developer R2 Technology has launched a pulmonary artery patency exam (PE) tool.

June 15, 2005

X-ray features of TB reveal HIV, not reactivation

By Tracie L. Thompson

New research has pierced the long-held belief that chest x-rays indicate how recently a patient has been infected with tuberculosis. But the results also suggest that radiographs have a more clinically important role in spotting the "atypical" findings seen in TB patients who also have human immunodeficiency virus (HIV).

June 14, 2005

Gamma detector proves less invasive, more accurate for seed migration

By Shalmali Pal

Now that scintillator-based detectors are on the scene, x-rays should be jettisoned for assessing embolized seed migration in the lungs, according to radiation oncologists in Canada.

June 14, 2005

Complex cardiothoracic surgery benefits from 3D imaging

By N. Shivapriya

Three-dimensional CT images are more than just pretty pictures when it comes to cardiothoracic surgery. Viewing 3D real-time images along with 2D ones can alter surgical plans for complex cases, and even increase a surgeon's confidence in the plan, according to a new study by researchers from the University of North Carolina (UNC) at Chapel Hill and the University of Alabama at Birmingham.

June 12, 2005

Widen that search: CTPA reveals more non-PE than PE diagnoses

By Tracie L. Thompson

NEW ORLEANS - Nearly a third of emboli-negative scans will reveal an alternative diagnosis for the patient's symptoms, according to a study presented Tuesday at the annual meeting of the American Roentgen Ray Society.

May 17, 2005

R2 debuts ImageChecker 2.0 for CT

By AuntMinnie.com staff writers

Computer-aided detection (CAD) developer R2 Technology has launched its ImageChecker CT Lung Version 2.0 CAD software system and AutoPoint temporal comparison feature for use during review of multidetector-row CT chest exams.

May 16, 2005

Emphysema alters CT appearance of benign nodules

By N. Shivapriya

Emphysema can alter the CT appearance of peripheral pulmonary nodules, making it harder to distinguish malignant nodules from benign ones, according to a Japanese study.

May 3, 2005

Meta-analysis shows CT is sufficient to exclude PE

By Eric Barnes

A negative chest CT exam -- even single-slice -- is enough to rule out pulmonary embolism (PE), according to a meta-analysis published today in the Journal of the American Medical Association.

April 26, 2005

Vital Images, R2 form alliance

By AuntMinnie.com staff writers

Advanced visualization software developer Vital Images of Plymouth, MN, and computer-aided detection (CAD) developer R2 Technology of Sunnyvale, CA, have signed a three-year sales and marketing agreement.

April 25, 2005

More PET/CT lung masses seen with hardware-based fusion

By Eric Barnes

Two new studies underscore the superiority of PET/CT for imaging lung lesions compared to either modality alone. The first found that different fusion methods produce substantially different results, while the second found that PET/CT has higher sensitivity, specificity, and positive and negative predictive values than either modality alone for detecting lung metastases.

April 25, 2005

CT finds TB lesions not shown on x-ray

By N. Shivapriya

Pediatric CT detects tuberculosis (TB) lesions that are not seen on chest x-ray, according to a study from India. The study found CT useful in detecting pulmonary lesions for cases in which the radiograph was normal, but the presence of the TB bacteria was detected on gastric lavage cultures.

April 20, 2005

Studies critique radiologists' reports in chest x-ray, knee MRI

By Tracie L. Thompson

Are radiologists writing reports that clinicians find useful? Two new studies suggest substantial room for improvement, and one of the studies has already been cited in the political debate over who should interpret images.

April 18, 2005

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