Single Photon Emission Computed Tomography (SPECT) cameras have revolutionarily changed nuclear imaging techniques and given us new diagnostic possibilities. They provide images that reveal subtle information about physiological and pathological processes. For some indications like cardiac and brain imaging, as well as tumor imaging, the importance of SPECT compared to planar imaging is beyond words. This book covers a broad spectrum of clinical applications of SPECT in the diagnosis of benign and malignant diseases. The opening chapters discuss the technology and physics of SPECT and its use in dosimetry. Applications covered include, among others, imaging of the bone and lungs, imaging of neuroendocrine tumors, cardiac imaging and brain SPECT for different indications like brain tumors and epilepsy. In each chapter, different radiopharmaceuticals for SPECT imaging were discussed and the scan procedures described. Readers will find this book to be a useful source for often performed SPECT imaging in the clinical routine.