Positron emission tomography
KEY POINTS • The radionuclides of interest for PET emit positrons, the antiparticles of electrons. • Positrons interact with free electrons to produce two back-to-back 511-keV annihilation photons; PET imaging…
Single photon emission computed tomography
KEY POINTS • Conventional gamma cameras use one to three detectors, based on a NaI scintillation crystal and a photomultiplier tube array, that rotate around the patient. • Cameras commonly…
Novel Tracers and Radionuclides in PET Imaging
The use of PET imaging agents in oncology, cardiovascular disease, and neurodegenerative disease shows the power of this technique in evaluating the molecular and biological characteristics of numerous diseases. These…
PET Imaging for Head and Neck Cancers
Head and neck cancers are commonly encountered cancers in clinical practice in the United States. Fluorine-18-fluorodeoxyglucose ( 18 F-FDG) PET/CT has been clinically applied in staging, occult primary tumor detection,…
PET Imaging for Gynecologic Malignancies
This review article summarizes the clinical applications of established and emerging PET tracers in the evaluation of the 5 most common gynecologic malignancies: endometrial, ovarian, cervical, vaginal, and vulvar cancers….
Imaging of Tumor Syndromes
Tumor predisposition syndromes represent a heterogeneous group of multiorgan disorders, with many having substantial central nervous system involvement. This article highlights the common and uncommon manifestations of these syndromic disorders,…
Imaging of Neurologic Injury following Oncologic Therapy
Neurologic injury arises from treatment of central nervous system malignancies as result of direct toxic effects or indirect vascular, autoimmune, or infectious effects. Multimodality treatment may potentiate both therapeutic and…
Neoplastic Meningitis and Paraneoplastic Syndromes
Neoplastic meningitis (NM) and paraneoplastic syndromes (PNSs) are a rare group of disorders present in patients with cancer. Clinical diagnosis of these conditions is challenging, and imaging and laboratory analysis…
Imaging Mimics of Brain Tumors
Nonneoplastic entities may closely resemble the imaging findings of primary or metastatic intracranial neoplasia, posing diagnostic challenges for the referring provider and radiologist. Prospective identification of brain tumor mimics is…
Cellular and Molecular Imaging with SPECT and PET in Brain Tumors
This review highlights the 2 major molecular imaging modalities that are used in clinics, namely single-photon emission computed tomography (SPECT) and positron emission tomography (PET), and their added value in…
