Abstract:
:Uneven distribution of ventilation, or ventilation heterogeneity, has been observed in asthma for over 60 years using multiple breath nitrogen washout (MBNW) studies. Ventilation heterogeneity has been known to predict airway hyperresponsiveness (the ability of the airways to constrict too easily and by too much) in asthma, which is a core physiological characteristic of this disease. SPECT ventilation imaging allows topographical analysis of changes in ventilation distribution. Technegas as a SPECT ventilation agent has a key advantage as it remains fixed after inhalation, which allows imaging of upright ventilation distribution, analogous of pulmonary function tests. Recent studies using Technegas ventilation SPECT have shown spatial imaging markers also relate to airway hyperresponsiveness in asthma, and are predicted by a MBNW index of peripheral ventilation heterogeneity. It has also been shown that low-ventilation regions induced by bronchoconstriction were also related to peripheral ventilation heterogeneity. Furthermore, this suggests that the function of peripheral airways may determine the topographical pattern of airway narrowing with a more widespread distribution of narrowing. SPECT ventilation adds spatial characterisation information and it should be included in research protocols to enhance the understanding of complex physiological mechanisms in asthma.
journal_name
Semin Nucl Medjournal_title
Seminars in nuclear medicineauthors
Farrow C,King Gdoi
10.1053/j.semnuclmed.2018.10.007subject
Has Abstractpub_date
2019-01-01 00:00:00pages
11-15issue
1eissn
0001-2998issn
1558-4623pii
S0001-2998(18)30073-4journal_volume
49pub_type
杂志文章,评审abstract::Radioimmunotherapy is a form of targeted radionuclide therapy that uses a monoclonal antibody to deliver localized radiation. It is most appropriate for treatment of multiple tumor sites that cannot be readily excised surgically or irradiated using external beam radiation or brachytherapy. At present, 2 products, Bexx...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2009.11.002
更新日期:2010-03-01 00:00:00
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::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 American Board of Nuclear Medicine gave its first certifying examination in 1972 to 1,096 candidates. It was established with the support of the Society of Nuclear Medicine amid considerable conflict involving the American Board of Radiology, the American Board of Internal Medicine, and the American Board of Patho...
journal_title:Seminars in nuclear medicine
pub_type: 历史文章,杂志文章
doi:10.1016/s0001-2998(96)80024-9
更新日期:1996-07-01 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 high-level expression of somatostatin receptors (SSTR) on various tumor cells has provided the molecular basis for successful use of radiolabeled peptide analogues as tumor tracers in nuclear medicine. The vast majority of human tumors seem to overexpress one or the other of 5 distinct hSSTR subtype receptors. Whe...
journal_title:Seminars in nuclear medicine
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1053/snuc.2002.31565
更新日期:2002-04-01 00:00:00
abstract::There seems little doubt that the ability to prepare antibodies with a unique specificity for surface tumor antigens will have a tremendous usefulness in the diagnostic and therapeutics of cancer. This usefulness will be wide-ranged when the antibodies are labeled with radioisotopes as tools for screening for primary ...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(76)80015-3
更新日期:1976-10-01 00:00:00
abstract::Bone scintigraphy of the hands and wrists represents an important adjunct imaging technique that complements plain film radiographic examination. The use of the three-phase bone scan provides clinical information not only regarding osseous uptake but the blood flow and extravascular distribution of the radiotracer as ...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(98)80016-0
更新日期:1998-01-01 00:00:00
abstract::Mammographic screening of women age 40 and older can reduce breast cancer deaths by at least 30% to 40%. However, not all cancers are detected by mammography. Although a new supplementary modality for screening could, in theory, fill in this detection gap, such utilization must be based on rigorous demonstration of it...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(99)80026-9
更新日期:1999-01-01 00:00:00
abstract::Prospective delineation of viable from nonviable myocardium in patients with coronary artery disease in an important factor in deciding whether a patient should be revascularized or treated medically. Two common techniques--single-photon emission computed tomography (SPECT) and positron-emission computed tomography (P...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(96)80007-9
更新日期:1996-10-01 00:00:00
abstract::Radionuclide angiocardiography and myocardial perfusion imaging with exercise are valuable methods to assess patients undergoing percutaneous transluminal coronary angioplasty. Successful angioplasty results in improvement in ventricular systolic and diastolic function and regional perfusion. Complications of angiopla...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(05)80048-0
更新日期:1991-04-01 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::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::Hybrid positron emission tomography/magnetic resonance imaging (PET/MR) systems are now more and more available for clinical use. PET/MR combines the unique features of MR including excellent soft tissue contrast, diffusion-weighted imaging, dynamic contrast-enhanced imaging, fMRI and other specialized sequences as we...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2018.02.003
更新日期:2018-05-01 00:00:00
abstract::The use of positron emission tomography (PET) with 18F-fluorodeoxyglucose (FDG) in prostate cancer depends on the phase of the disease along the natural history of this prevalent malignancy in men. Incidental high FDG uptake in the prostate gland, although rare, should prompt further investigation with at least a meas...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2016.07.004
更新日期:2016-11-01 00:00:00
abstract::Positron emission tomography (PET) of local cerebral glucose utilization is highly sensitive in detecting epileptogenic regions that correspond to electrographic localization in patients with epilepsy. In medically refractory temporal lobe epilepsy for which surgical resection of the epileptogenic zone is a therapeuti...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(05)80119-9
更新日期:1992-10-01 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::Most of the components of the thrombotic and fibrinolytic systems have at some time been evaluated as a means of carrying a radiolabel specifically to thrombi, although very few have been promising enough to emerge from investigational status to routine clinical use. New approaches are being explored, including improv...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(05)80176-x
更新日期:1990-01-01 00:00:00
abstract::In the past, T3 suppression testing was often required to confirm the presence of autonomous thyroid function in patients with borderline clinical and laboratory findings suggestive of hyperthyroidism or in euthyroid patients with the stigmata of Graves' disease. Similarly, TSH stimulation testing was used to document...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章
doi:10.1016/s0001-2998(81)80043-8
更新日期:1981-04-01 00:00:00
abstract::Evaluation of ventricular performance is essential in the diagnosis and long-term management of patients with heart disease. This can be most easily performed clinically using simple tools. When more definitive objective assessment of cardiac function is indicated, the equilibrium gated blood pool study provides relia...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章
doi:10.1016/s0001-2998(79)80015-x
更新日期:1979-10-01 00:00:00
abstract::FDG-PET/CT has an established role in the initial staging of locally advanced cervical cancers, particularly in evaluation of nodal disease and distant metastases. It is common practice to perform FDG-PET/CT 3 months postcompletion of chemoradiotherapy as it can predict outcome and be used to tailor management, includ...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2019.06.007
更新日期:2019-11-01 00:00:00
abstract::The results of quantitative analysis of planar thallium-201 stress scintigraphy are superior to those of visual analysis. The increased sensitivity for detection of coronary artery disease is associated with maintenance of specificity. Consequently, we believe that quantitative analysis is the state-of-the-art for pla...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章
doi:10.1016/s0001-2998(85)80043-x
更新日期:1985-01-01 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::The objective of this work is to compare the characteristics of various techniques for functional renal imaging, with a focus on nuclear medicine and magnetic resonance imaging. Even with low spatial resolution and rather poor signal-to-noise ratio, classical nuclear medicine has the advantage of linearity and good se...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2010.08.003
更新日期:2011-01-01 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::Postsurgical bile leaks can be associated with significant morbidity and even mortality, if not identified and treated at an early phase. Hepatobiliary iminodiacetic acid (HIDA) scan is an important test for detection of bile leaks in the postoperative abdomen. However, the lack of anatomical details on planar images ...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2017.06.002
更新日期:2017-11-01 00:00:00
abstract::We describe our all-digital, filmless, department of nuclear medicine, which has been fully operational for 3 years. The approach to the design and implementation of a nuclear medicine picture archiving and communication system (PACS) is discussed, as well as enhancements found to be necessary or desirable during our ...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章
doi:10.1016/s0001-2998(05)80031-5
更新日期:1990-07-01 00:00:00
abstract::Much efficacy is gained in clinical practice if a single agent can be used for both diagnosis and therapy, a practice termed theranostics. Metaiodobenzylguanidine (mIBG), a norepinephrine analogue with high sensitivity and specificity for neuroblastoma, is an exemplar of theranostics. The physiologic biodistribution o...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2016.02.002
更新日期:2016-05-01 00:00:00
abstract::The radionuclide (99m)Tc-MDP bone scan is one of the most commonly performed nuclear medicine studies and helps in the diagnosis of different pathologies relating to the musculoskeletal system. With its increasing utility in clinical practice, it becomes more important to be aware of various limitations of this imagin...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1053/j.semnuclmed.2015.02.002
更新日期:2015-09-01 00:00:00
abstract::At the present time, there are three radiolabeled antibodies that have been approved by the US Food and Drug Administration (FDA) for imaging of cancer, a fourth commercially sponsored product recommended for approval (as of 10/29/96, cap romab pendetide (ProstaScint; Cytogen Corp., Princeton, NJ) was upgraded from re...
journal_title:Seminars in nuclear medicine
pub_type: 杂志文章,评审
doi:10.1016/s0001-2998(97)80033-5
更新日期:1997-01-01 00:00:00