Mapping the Invisible: Advances and Applications in Single Photon Emission Computed Tomography

At its core, SPECT imaging operates on the principle of detecting gamma rays emitted by a radioactive tracer injected into the body. These gamma rays are emitted when the tracer interacts with specific tissues or organs, allowing SPECT scanners to capture detailed images of their distribution. Unlike traditional X-ray imaging, which provides a two-dimensional view, SPECT offers three-dimensional images that enable healthcare professionals to visualize complex anatomical structures and physiological processes with unparalleled clarity.