PET images are acquired from from rats, mice by recording high-energy γ-rays emitted from within the subject. The source of the radiation comes from positron-emitting-bound biological molecules, such as 18F-FDG (fludeoxyglucose), which is injected into the animal.
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CT imaging works through X-rays that are emitted from a focused radiation source that is rotated around the test subject placed in the middle of the CT scanner. The X-ray is attenuated at different rates depending on the density of tissue it is passing through, and is then picked up by sensors on the opposite end of the CT scanner from the emission source.
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MRI exploits the nuclear magnetic alignments of different atoms inside a magnetic field to generate images. MRI machines consist of large magnets that generate magnetic fields around the target of analysis.
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Ultrasound imaging works through the generation of harmless sound waves from transducers into living systems. As the sound waves propagate through tissue, they are reflected back and picked up by the transducer, and can then be translated into 2D and 3D images.
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Demo ContentPhotoacoustic imaging is a new in vivo hybrid imaging modality that combines the sensitivity and contrast of optical imaging with the depth and resolution of ultrasound. When pulsed laser light illuminates tissue, the optical absorbers there (such as hemoglobin) undergo thermoelastic expansion, generating an acoustic pressure wave which is detected with an ultrasound transducer.
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Fluorescence Imaging - works on the basis of fluorochromes inside the subject that are excited by an external light source, and which emit light of a different wavelength in response.
Bioluminescence Imaging - on the other hand, is based on light generated by chemiluminescent enzymatic reactions. In both fluorescence and bioluminescence imaging.
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Offers multilabel counting efficiencies for more sophisticated research applications such as PET. This single detector, universal counter sets a new standard in background reduction.
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Perform high resolution filmless autoradiography of gene arrays, lectrophoresis gels, blots, thin layer chromatography samples,
and tissue section.
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