Download Hybrid PET/CT and SPECT/CT Imaging: A Teaching File by James A. Patton (auth.), Dominique Delbeke, Ora Israel PDF
By James A. Patton (auth.), Dominique Delbeke, Ora Israel (eds.)
Hybrid PET/CT and SPECT/CT Imaging: A educating dossier offers an entire e-book on cutting-edge built-in PET/CT and SPECT/CT imaging structures. Edited via Drs. Dominique Delbeke and Ora Israel, this useful advisor comprises in-depth instances that might increase the talents of nuclear physicians and radiologists whereas additionally getting ready citizens for the sphere of nuclear medication and radiology. Internationally-recognized members give you the reader with chapters protecting the technical and scientific features of hybrid imaging, together with simple ideas, physics and instrumentation, the conventional distribution of radiopharmaceuticals, and protocols severe to the sphere. A complete overview of nuclear oncology instances present in daily perform are addressed, together with between different scientific functions head and neck tumors, breast melanoma, lung neoplasms, colorectal melanoma, pancreatic melanoma, and genitourinary tumors. extra chapters study using those modalities in pediatric sufferers, benign bone ailments and an infection, and cardiac hybrid imaging. A wealth of illustrations reinforces the foremost educating issues mentioned through the book.
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Extra info for Hybrid PET/CT and SPECT/CT Imaging: A Teaching File
It is possible to limit the acceptance angle in the axial direction to reduce the effects of randoms and scatter, but this process results in a reduction in sensitivity. Data Acquisition and Image Reconstruction As previously described, a coincidence event is recorded when two photons are simultaneously measured in two separate detectors. Thus, the coordinates of the two detectors determine the line of response (LOR) defined by the coincidence detection of the two photons as shown in Fig. 11A. These coordinates are captured by calculating the perpendicular distance from the center of the scan field to the LOR (r) and measuring the angle between this line and the vertical axis (f).
Clinical PET/CT Systems Clinical PET/CT systems are only available with diagnostic CT scanners, and systems are generally acquired with 4, 8, 16, or 64 slice capability providing images of sufficient diagnostic quality to be used for billable procedures. As with SPECT/CT systems, the CT scanners can be operated at reduced tube current if the scans are only to be used for attenuation correction. Contrast Agents Many diagnostic applications of CT scanning require the use of contrast agents administered either orally or intravenously to improve the visualization of soft tissue structures in the body.
Fig. ) Based on this convention, the CT numbers of air and water are –1000 and 0, respectively. A. Patton SPECT/CT and PET/CT The integration of an emission tomography system (SPECT or PET) with a transmission tomography system (CT) into a single imaging unit sharing a common imaging table provides a significant advance in technology. Lang, Hasegawa, and colleagues27 developed a prototype SPECT/CT imaging system using an array of solid-state detectors to acquire both the emission and transmission data.