Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, …

2022年10月19日 · Positron emission tomography (PET) scans detect early signs of cancer, heart disease and brain conditions. It involves an injection of a safe radioactive tracer that helps detect diseased cells.

2022年8月1日 · This review describes the basics of PET detectors, including a detailed description of indirect and direct 511-keV photon detection methods. We will also cover key detector performance parameters and describe detector …

2023年2月1日 · Since the first PET designs, research in scintillation crystals and light sensors has tremendously improved PET detectors as well as overall system performance. In this brief review, we describe most important developments in PET …

2001年3月1日 · After reading this article, the technologist should be able to describe the basics of coincidence imaging, identify at least 3 physical degrading factors in PET, and describe 2 different types of PET scanning systems.

2022年4月21日 · Most current whole-body positron emission tomography (PET) scanners use detectors with high timing resolution to measure the time-of-flight of two 511 keV photons, improving the signal-to-noise ratio of PET images.

2016年9月3日 · Positron emission tomography (PET) offers several unique advantages compared with other imaging modalities. PET measures the two annihilation photons that are produced back-to-back after positron emission from a radionuclide tagged tracer molecule, which is chosen to mark a specific function in the body on a biochemical level (Fig. 1.1).

Positron emission tomography (PET) is a tool for metabolic imaging that has been utilized since the earliest days of nuclear medicine. A key component of such imaging systems is the detector modules—an area of research and development with a long, rich history.

Biograph™ mCT and Biograph Horizon digital detectors offer PET/CT imaging with high, 78-mm 3 volumetric resolution 2 due to the small, 4 x 4-mm lutetium oxyorthosilicate (LSO) crystal elements and the ability to offer true TOF for performance and clinical advantages.

In this review, we study and discuss the operating principles, key performance parameters, and PET applications for each type of sensor technology with an emphasis on SiPM and CZT detectors—the two most promising types of sensors for future PET systems.