Abstract：
:In the past 20 years there have been great advances in our understanding of the molecular genetics of gastrointestinal tumors. In general, cancers develop and proliferate due to: driver mutations or related alterations in the genome resulting in overactivity of oncogenes, underactivity of tumor suppressor genes allowing tumors to grow, and impaired DNA repair mechanisms either from sequential mutations with or without germline mutations predisposing patients to cancer. Infections such as hepatitis B and C, and Human Papilloma Virus (HPV) can lead to hepatocellular cancers and anal cancers, respectively. This genomic knowledge has helped us better define unique subsets within diseases like colon and pancreatic cancer which may benefit from precisely targeted therapies. Alterations in key proteins on tumors and in the tumor microenvironment can be targets for molecular-targeted radiopharmaceutical therapies, immunotherapies and other targeted treatments. Molecular imaging may be deployed more aggressively in high-risk groups for possible detection of tumor occurrence, progression, and response to therapy. This chapter provides a brief summary of the genomics of gastrointestinal tumors, selected examples of targeted therapies, and examples of how current and emerging molecular imaging tools, assessing the tumor phenotype, inform our management of patients with tumors.
journal_name
Semin Nucl Medjournal_title
Seminars in nuclear medicineauthors
Wahl RLdoi
10.1053/j.semnuclmed.2020.06.002subject
Has Abstractpub_date
2020-09-01 00:00:00pages
471-483issue
5eissn
0001-2998issn
1558-4623pii
S0001-2998(20)30068-4journal_volume
50pub_type
杂志文章,评审abstract：:More than 7 million stress perfusion studies are performed in the United States annually, 44% with pharmacological vasodilator stress agents. Both adenosine and dipyridamole are nonselective coronary vasodilators that are commonly used for stress perfusion imaging. These agents are safe and provide an effective means ...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2008.12.003
更新日期：2009-05-01 00:00:00
abstract：:Nuclear medicine renal imaging provides important functional data to assist in the diagnosis and management of patients with a variety of renal disorders. Physiologically stable metal chelates like ethylenediaminetetraacetic acid (EDTA) and diethylenetriamine penta-acetate (DTPA) are excreted by glomerular filtration ...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2016.04.002
更新日期：2016-09-01 00:00:00
abstract：:In this work, we provide preliminary data and a review of the literature regarding normal structural and functional changes that occur in the aging uterus, ovary, testicle, and prostate gland. It is expected that such knowledge will help physicians to distinguish physiologic changes from pathologic changes at an early...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1053/j.semnuclmed.2007.01.004
更新日期：2007-05-01 00:00:00
abstract：:Radionuclide renal studies are particularly well suited to pediatrics as renal problems in children usually are part of a dynamic process which requires serial assessment. The absence of side-effects and the low radiation dose has added to their popularity in pediatrics. A number of different renal parameters can be e...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1016/s0001-2998(82)80015-9
更新日期：1982-10-01 00:00:00
abstract：:The radionuclide bone scan is one of the most commonly performed pediatric nuclear medicine procedures. Bone scintigraphy is used as the diagnostic procedure of choice for diagnosis of bone and soft-tissue infection and can aid in the diagnosis of occult trauma without radiographic findings. There is a complimentary r...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2007.06.001
更新日期：2007-09-01 00:00:00
abstract：:Autonomic innervation plays an important role in proper functioning of the cardiovascular system. Altered cardiac sympathetic function is present in a variety of diseases, and can be assessed with radionuclide imaging using sympathetic neurotransmitter analogues. The most studied adrenergic radiotracer is cardiac 123I...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2020.03.001
更新日期：2020-07-01 00:00:00
abstract：:Molecular imaging has revolutionized clinical oncology by imaging-specific facets of cancer biology. Through noninvasive measurements of tumor physiology, targeted radiotracers can serve as biomarkers for disease characterization, prognosis, response assessment, and predicting long-term response/survival. In turn, the...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2020.07.002
更新日期：2020-11-01 00:00:00
abstract：:The radioimmunoassay of digoxin is one of the most important services of the nuclear medicine laboratory. Precision and accuracy in the performance of the test are especially critical. A number of commerical kits are available and reliable. Pitfalls to be avoided includelimited availability or delay in performance of ...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1016/s0001-2998(75)80010-9
更新日期：1975-07-01 00:00:00
abstract：:The process of discovering and developing a new pharmaceutical is a long, difficult, and risky process that requires numerous resources. Molecular imaging techniques such as PET have recently become a useful tool for making decisions along a drug candidate's development timeline. PET is a translational, noninvasive im...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2017.05.006
更新日期：2017-09-01 00:00:00
abstract：:New software methods that incorporate iterative reconstruction, resolution recovery, and noise compensation now provide the ability to maintain or improve myocardial perfusion SPECT image quality with conventional sodium iodide cameras. Despite lower image counting statistics associated with significantly decreased in...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2014.04.001
更新日期：2014-07-01 00:00:00
abstract：:The role of labeled tracers in radioimmunoassay procedures (RIA) and the advantages of the iodine-labeled antigens over 14C or tritium-labeled antigens are discussed. Different methods of labeling with iodine isotopes are presented. The ease with which microgram amounts of hormonal proteins are tagged, achieving high...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1016/s0001-2998(75)80030-4
更新日期：1975-04-01 00:00:00
abstract：:2-deoxy-2-[18F] fluoro-D-glucose (18FDG) was developed in 1976 in a collaboration between scientists at the National Institutes of Health, the University of Pennsylvania, and Brookhaven National Laboratory. It was developed for the specific purpose of mapping brain glucose metabolism in living humans, thereby serving ...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/snuc.2002.29270
更新日期：2002-01-01 00:00:00
abstract：:Tc-99m pyrophosphate is the grandfather of infarct avid agents. Its value is its clinical availability and ease of use. However, its shortcomings are the delay of 2 to 3 days for reliable interpretation in nonreperfused myocardial infarction (MI) and the overarching bone activity. Antimyosin provides exquisite specifi...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(99)80014-2
更新日期：1999-07-01 00:00:00
abstract：:Positron emission tomography (PET)/computed tomography (CT) is a rapidly expanding imaging modality, thanks to the availability of compact medical cyclotrons and automated chemistry synthesis modules for the production of PET radiopharmaceuticals. Despite the availability of many radiotracers, [(18)F]fluorodeoxyglucos...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2011.02.003
更新日期：2011-07-01 00:00:00
abstract：:One of the major mechanisms of implementing the International Atomic Energy Agency's (IAEA) programs in nuclear medicine has been through coordinated research projects (CRPs). In recent years, the IAEA has initiated a new type of CRP, called Doctoral CRP, in an attempt to further improve the effectiveness of its progr...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1053/j.semnuclmed.2007.10.001
更新日期：2008-03-01 00:00:00
abstract：:Most positron emission tomography (PET) imaging studies in head and neck cancer are performed using the radiotracer 18-fluorodeoxyglucose ((18)FDG). PET with FDG has become a standard clinical imaging modality in patients with head and neck cancer. It contributes valuable information in localizing a primary tumor in p...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2004.03.004
更新日期：2004-07-01 00:00:00
abstract：:Vital blue dyes were used to show the feasibility and accuracy of intraoperative lymphatic mapping of the sentinel node (SN) in patients with melanoma, breast cancer, and other solid tumors. Surgeons who have successfully completed an adequate number of cases of intraoperative mapping and sentinel lymph node dissectio...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(00)80058-6
更新日期：2000-01-01 00:00:00
abstract：:In this work, the methods of the Prospective Investigation of Pulmonary Embolism Diagnosis III (PIOPED III) are described in detail. PIOPED III is a multicenter collaborative investigation sponsored by the National Heart, Lung and Blood Institute. The purpose is to determine the accuracy of gadolinium-enhanced magneti...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,多中心研究,评审
doi：10.1053/j.semnuclmed.2008.06.003
更新日期：2008-11-01 00:00:00
abstract：:Radioimmunotherapy is a promising new therapeutic option for the treatment of B-cell non-Hodgkin's lymphoma. Several monoclonal antibody and radionuclide conjugates, including I-131 tositumomab and Y-90 ibritumomab, have been investigated in clinical trials. Yttrium 90 ibritumomab tiuxetan (Zevalin; Biogen Idec Inc, C...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2003.11.001
更新日期：2004-01-01 00:00:00
abstract：:The concept of brain death has gained importance in the past few decades to prevent futile attempts to sustain ventilation and blood circulation when the brain has lost all function and to procure beneficial tissues or life-saving organs for transplantation. However, differences remain among professional societies and...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2011.07.007
更新日期：2012-01-01 00:00:00
abstract：:Computer processing can improve the quality of scintigrams in several ways. It can increase the accuracy with which the image approximates the activity distribution by reversing degradation. It can selectively enhance normal or abnormal structures of interest. It can optimize the use of the display system presenting t...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1016/s0001-2998(78)80036-1
更新日期：1978-04-01 00:00:00
abstract：:Graft infection following prosthetic vascular reconstruction is an uncommon but severe complication. The clinical presentation is often subtle and nonspecific and may occur long after surgery. Although defining a prosthetic vascular graft infection can be difficult, early diagnosis and treatment are essential for the ...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2013.04.004
更新日期：2013-09-01 00:00:00
abstract：:Adrenal scintigraphy is a unique nuclear medicine procedure that provides noninvasive, functional information concerning the status of the adrenal cortex. The uptake of iodocholesterol, in addition to localizing adrenal cortical abnormalities, can be manipulate to focus on adrenal cortical dysfunction in either the al...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1016/s0001-2998(81)80042-6
更新日期：1981-04-01 00:00:00
abstract：:A comprehensive review of the effects of exposure to low levels of ionizing radiation, BEIR VII-Phase 2: Health Risks From Exposure to Low Levels of Ionizing Radiation, was published in 2006. The BEIR (Biological Effects of Ionizing Radiation) reports are a series of publications by the National Academy of Sciences. T...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2008.05.006
更新日期：2008-09-01 00:00:00
abstract：:Myocardial perfusion imaging with 15O-water positron emission tomography (PET) is a validated tool for quantitative measurement of myocardial blood flow (MBF) and myocardial flow reserve (MFR). Current scanner and software technology enable quantification of global and regional MBF in clinical PET myocardial perfusion...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2020.02.011
更新日期：2020-05-01 00:00:00
abstract：:Due to the increasing life expectancy, the diagnosis of malignancy and treatment of elderly patients is becoming more common. Prostate cancer is particularly frequent in this setting. Many different approaches are now available, but some of them imply significant risks or collateral effects. In those patients an accur...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2018.07.004
更新日期：2018-11-01 00:00:00
abstract：:Holmium microspheres have recently become available in the European market as the third type of microspheres for radioembolization of unresectable liver malignancies. Holmium microspheres come with a dedicated administration system, and since these microspheres contain holmium-166 (166Ho) instead of yttrium-90, unique...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2019.01.008
更新日期：2019-05-01 00:00:00
abstract：:This review, examines the indications for and limitations of gallium-67 (67Ga) scanning in the evaluation of patients infected with human immunodeficiency virus (HIV). The imaging protocol, as well as the normal biodistribution of 67Ga and its normal variants are discussed. The diagnostic significance of the different...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(88)80037-0
更新日期：1988-10-01 00:00:00
abstract：:The basic principles of the use of radiation dosimetry in nuclear medicine are reviewed. The basic structure of the main mathematical equations are given and formal dosimetry systems are discussed. An extensive overview of the history and current status of anthropomorphic models (phantoms) is given. The sources and ma...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2014.03.008
更新日期：2014-05-01 00:00:00
abstract：:Positron emission tomography (PET) scanning has been a powerful research tool since its inception. Changes in the marketplace that have allowed PET to move into the clinical environment include the commercial availability of appropriate radiopharmaceuticals, reimbursement of procedures by insurance companies, and incr...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1053/snuc.2000.9544
更新日期：2000-10-01 00:00:00
