First Single Camera, Multi-Parametric Cardiac Imaging System Uses Photometrics® Evolve™ EMCCD Camera
February 17, 2012, Tucson, AZ — Photometrics’ high-performance Evolve 128 EMCCD camera was used in the first single camera, multi-parameter cardiac imaging system. Oxford University and University of Michigan researchers employed the system to measure the electrophysiological function of adult human stem cell-derived heart tissue.
The findings were published as part of a review titled “Optical Imaging of Voltage and Calcium in Cardiac Cells & Tissues,” in today’s issue of Circulation Research. The review describes advances in cardiac optical mapping, as it is referred to in the cardiac research community, for studying cardiovascular function and disease.
Using the Evolve 128 EMCCD camera and off-the-shelf components, the authors demonstrated for the first time the electrophysiological functions of adult human stem cell-derived heart tissue, which included simultaneous voltage and ratiometric calcium imaging on a macroscopic scale. This single camera, multi-parametric method represents a new optical mapping technique for quantitative measurement of cardiac tissue function from cellular monolayers to whole hearts.
“To acquire this type of data, traditional set-ups require the use of multiple cameras to collect emission spectra from each parameter, which is far too costly and technically difficult to replicate,” said Peter Lee, one of the study’s authors. “The single camera multi-parametric system using the Evolve 128 completely eliminates the need to align multiple cameras, which improves reproducibility, minimizes set-up time and drastically reduces equipment costs.”
The Evolve 128’s well-depth and high camera frame rate of ~1000 fps at 64×64 pixel resolution and 10-MHz readout enabled Lee to share frames between different parameters. By multiplexing the camera’s frame-exposures using a multi-band optical filter and powerful LEDs, Lee was able to successfully image three parameters with a single camera. His innovative approach will be integral in determining the underlying mechanisms of cardiac arrhythmias and new cell-based therapies that will emerge from the biomedical field of cardiovascular regenerative medicine.
“Peter’s case is a great example of researchers relying on Photometrics’ technology and support to construct customized, scalable biomedical imaging systems,” said Rachit Mohindra, associate product manager at Photometrics.
The Evolve 128 delivers the highest frame rates available with extreme sensitivity for demanding low-light applications ranging from In Vivo imaging to Single Molecule Fluorescence. As the leader in quantitative performance, the Evolve 128 provides researchers an enhanced imaging tool with on board camera intelligence. Features such as Quant-View™ combined with superior stability, enables precise and accurate research measurement and reproducible results. The Evolve EMCCD camera line is the first scientific imaging solution that reads out pixel data in electrons, resulting in more accurate and reproducible data. With the most advanced feature set available, the small, yet powerful Evolve is ideally suited for low-light bioimaging applications.
Founded in 1978, Photometrics is the world’s premier designer and manufacturer of high-performance CCD and EMCCD cameras for life science research. The original architect of the world’s first scientific-grade microscopy EMCCD camera, Photometrics for decades has led the industry with state-of-the-art imaging instrumentation for the scientific community. Tens of thousands of researchers around the globe rely on these cutting-edge imaging systems to meet their most demanding application requirements. Photometrics also offers comprehensive OEM support, including fully characterized, cost efficient imaging systems and components that provide the best solutions for customers’ unique requirements. Photometrics is headquartered in the Tucson, Arizona in the United States. Additional information is available at www.photometrics.com
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