ELASTICITY IMAGING

Real-time reconstruction of a 2-D image of a prostate phantom

Left shows a normal prostate, right shows an abnormal prostate.

Elasticity imaging is a new approach to medical imaging.

First, elasticity imaging is not transrectal ultrasound (TRUS). Neither is it Magnetic Resonance Imaging (MRI), Computerized Axial Tomography (CAT) scan or X-ray.

Elasticity imaging, sometimes referred to as "mechanical imaging," is a non-invasive analysis of tissue movement and displacement. The ProUroScan technique works by computing how tissue moves in response to pressure, thus evaluating its softness or stiffness. During a procedure similar in nature to the digital rectal examination for men, the clinician inserts the tip of the system’s probe into the patient’s rectum and palpates the prostate. Sensitive sensors on the head of the probe collect a sequence of pressure patterns when the probe is pressed against the prostate. The device consequently measures the prostate’s elasticity. Each scan produces an image of the prostate and compares elasticity measurements across the gland.

Mapping the Prostate

Using a sophisticated positioning system and complex mathematical algorithms, the ProUroScan technology is able to assemble the individual images it generates into a composite image, or "map" of the prostate. Tissue exhibiting comparatively less elastic properties is identified by darker colors on the map, similar to how areas of precipitation are displayed on a weather radar map. The differences in elasticity that are identified and their position within the prostate help the physician to better characterize the patient’s status.

Not available for Sale in the United States.
CAUTION – Investigational device. Limited by Federal law to investigational use.
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