Riverain Medical's chest X-ray computer-aided detection technology detects smaller lung nodules

Feb 17 2011

Riverain Medical, an industry leader and innovator in computer-aided detection (CAD) and advanced visualization technologies, today announced a poster presentation, "A Superior Chest X-Ray Computer-Aided Detection (CXR CADe) Application: A Reader Study," has been published on the European Society of Radiology's website. Investigators compared two versions of Riverain Medical's computer-aided detection (CAD) technology, OnGuard™ 5.1 and OnGuard 1.0. The study found radiologists using OnGuard 5.1 were able to detect smaller lung nodules, including those that were primary lung cancer.

“We're excited to play a key role in the early detection of lung cancer. OnGuard's CAD markings give radiologists a second set of eyes, allowing radiologists to find cancerous nodules at their earliest and most treatable stage.”

"By using OnGuard 5.1 in tandem with a standard chest X-ray, our radiologists are now able to detect smaller lung nodules that would have previously gone unnoticed," said Dr. Matthew Freedman, principal investigator of the study and Associate Professor of oncology at the Lombardi Comprehensive Cancer Center at Georgetown University in Washington, D.C. "It's clear from our research that OnGuard CAD technology has improved significantly over the past 10 years. Improved sensitivity and a lower false positive rate allow radiologists to detect early-stage lung cancer sooner, giving them more confidence in diagnosing the patient."

Fifteen radiologists participated in the reader study, which analyzed more than 250 chest X-rays (approximately a 2:1 cancer negative to positive ratio). Compared to its previous version, investigators found OnGuard 5.1 provided nearly 50 percent higher machine sensitivity for cancer detection, while significantly reducing the number of false positives per image.

"Initial results of the National Lung Screening Trial demonstrate for the first time that the early detection of lung cancer can save lives," said Steve Worrell, chief technology officer of Riverain Medical. "We're excited to play a key role in the early detection of lung cancer. OnGuard's CAD markings give radiologists a second set of eyes, allowing radiologists to find cancerous nodules at their earliest and most treatable stage."