Imagio Combines Optoacoustics with Ultrasound for Breast Cancer Diagnosis
Seno Medical Instruments, Texas Company revealed on December 5, 2017, that it combines imaging technology and conventional ultrasound with a new modality called optoacoustic imaging.
In optoacoustics, laser light is used to add energy to tissue, which is then released in the form of ultrasound waves. These waves contain information regarding blood and its oxygenation. Imagio system depend on a duplex probe that acts like a regular ultrasound transducer and also emits laser light to simultaneously work as an optoacoustic imaging device. Ultrasound can effectively visualizes tissue structures. Tumors consume more amount of oxygen than nearby tissues, which is the important property used in spotting tumors. Optoacoustics provide the functional view of blood oxygenation and improves the contrast for better visualization.
The Imagio system is intended for breast cancer diagnostics rather than screening, and patients are expected to have been screened using ultrasound before being imaged by Seno’s system. The system images at 30 frames per second using ultrasound and at 10 frames per second via optoacoustics. The optoacoustic component depends on two wavelengths of light. The long wavelength is absorbed by oxygenated blood while the shorter one is more readily absorbed by deoxygenated blood, which provides a view of contrast between regions of varying oxygenation.
According to Ultrasound Device Market report published by Coherent Market Insights, ultrasound devices provides two dimensional images of blood flow motion, movement, and location of specific molecules, tissue stiffness and the anatomy of a 3-D interior organ of the body. Improving diagnosis of breast cancer with reducing cost is highly important as around 80% of breast biopsies give false results. Clinical trial data has just been released at RSNA that shows the Imagio can reduce false positives breast examination in biopsies.
Bunch of images were scanned by the Imagio, which showed red color for deoxygenated blood and green color highlighting oxygenated regions. The images were created by sweeping the Imagio probe across the lesion including a few centimeters around the lesion. By analyzing the morphology of the vasculature that feeds a tumor and the mode for oxygen consumption, physicians can identify tumors with accuracy.
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