SPECTPositron emission tPerfusionImagingCerebralParkinson'sQuantitativeScanNeuropsychologicalNuclearDopamineUnderwentDementiaGammaDisorderBlood flowAssessmentDataTestsMethodPresenceAverageBrainMagneticMethylene-diphosphonateBrainRadioactive materialBonePhotomultiplierRadionuclideDetectorsAbsorbed doseDementiaOutcomeEmitAdvancesMethodsDataTreatmentSignal
SPECT26
- Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. (wikipedia.org)
- In contrast with PET, the tracers used in SPECT emit gamma radiation that is measured directly, whereas PET tracers emit positrons that annihilate with electrons up to a few millimeters away, causing two gamma photons to be emitted in opposite directions. (wikipedia.org)
- A PET scanner detects these emissions "coincident" in time, which provides more radiation event localization information and, thus, higher spatial resolution images than SPECT (which has about 1 cm resolution). (wikipedia.org)
- Single photon emission computed tomography (SPECT) is another diagnostic method where LV volumetric and functional parameters can be accurately provided by gated myocardial perfusion tomographic slices. (nih.gov)
- We reviewed the clinical utility of perfusion (Q)-single-photon emission computed tomography (SPECT)/CT for diagnosing pulmonary embolus (PE) in patients hospitalized with severe acute respiratory syndrome coronavirus 2 (SARS-CoV2). (nih.gov)
- "Single-Photon Emission Computed Tomography Market: Global Industry Analysis (2012 - 2016) and Opportunity Assessment (2017 - 2027)," is Future Market Insights' recent report which offers insights on the various factors driving the popularity of single-photon emission computed tomography (SPECT) in seven regions across the globe. (pharmiweb.com)
- Sixteen patients with primary brain tumours were examined on average eight years after treatment with surgery or whole brain irradiation using standard clinical assessment, CT, a neuropsychological test battery, and single photon emission CT (SPECT) with 99mTc-exametazime. (stir.ac.uk)
- Cardiac imaging refers to minimally invasive imaging of the heart using ultrasound , magnetic resonance imaging (MRI), computed tomography (CT), or nuclear medicine (NM) imaging with PET or SPECT . (wikipedia.org)
- Second-tier imaging with molecular methods, preferably with fluorodeoxyglucose positron emission tomography (FDG-PET) (or single-photon emission CT [SPECT] if PET is unavailable), can provide greater diagnostic specificity. (medscape.com)
- Defects in cerebral perfusion in Alzheimer's disease (AD) are detectable with single photon emission computed tomography (SPECT). (uky.edu)
- Lymphoscintigraphy was performed with 99 m-Tc sulfur colloid which showed tracer accumulation into thoracic cavity, and single-photon emission computed tomography/CT (SPECT/CT) revealed leak in the thoracic duct at D8 vertebral level as the cause. (qxmd.com)
- Case series: We provided clinical care to three patients with visual snow syndrome, in whom [ 123 I]-IMP single-photon emission computed tomography (SPECT) imaging was performed. (elsevierpure.com)
- Case series: We provided clinical care to three patients with visual snow syndrome, in whom [123I]-IMP single-photon emission computed tomography (SPECT) imaging was performed. (elsevierpure.com)
- Objective: To investigate in vivo changes in this receptor using single-photon-emission CT (SPECT) with 123I-5- iodo-3-[2(S)-2-azetidinylmethoxy] pyridine (5IA-85380), a novel nicotinic acetylcholine receptor ligand which binds predominantly to the α4β2 receptor. (ncl.ac.uk)
- Therefore, we conducted a surveillance to integrate the clinical presentations and Tc-99 m ethyl cysteinate dimer single-photon emission computed tomography (Tc-99 m-ECD SPECT) among patients with low Cbl status. (biomedcentral.com)
- A dynamic 99m Tc tracer experiment was performed to investigate the capabilities of combined preclinical single photon emission computed tomography (SPECT) and X-ray computed tomography (CT) for investigating transport in a heterogeneous porous medium. (tudelft.nl)
- Objective: Quantitative analyses of gamma-ray accumulation in single-photon emission computed tomography (SPECT), and the evaluation of antiresorptive agent-related osteonecrosis of the jaw (ARONJ) have been reported recently. (fujita-hu.ac.jp)
- However, the relationship between the quantitative parameters calculated from SPECT and the detailed morphological changes observed in computed tomography (CT) remains unclear. (fujita-hu.ac.jp)
- Objectives This study aims to evaluate nonlinear diffusion (NLD) processing to smoothen images while suppressing resolution degradation in single-photon emission computed tomography (SPECT) images. (elsevierpure.com)
- Additional tests such as SPECT (single-photon emission computed tomography) and PET (positron emission tomography) scans may also be recommended. (epilepsy.org.nz)
- 1 Measuring DAT density by using DAT ligands and single photon emission computed tomography (SPECT) or positron emission tomography (PET) provides in vivo information on the integrity of these presynaptic terminals. (bmj.com)
- SPECT (single-photon emission computed tomography) shows the function of organs. (healthgrades.com)
- Depending on product, the market is bifurcated into single-photon emission computed tomography (SPECT) and positron emission tomography (PET). (researchandmarkets.com)
- Brain perfusion single photon emission computed tomography (SPECT) neuroimaging reveals visual correlates of brain function. (frontiersin.org)
- Recent guidelines recommend performing [ 99m Tc]Tc-DMSA scintigraphy with single photon emission computed tomography (SPECT). (lu.se)
- Imaging of the radiation emitted from the radionuclide of the radiopharmaceutical is carried out using a gamma camera (planar or SPECT- Single Photon Emission Computed Tomography) or PET (Positron Emission Tomography). (lu.se)
Positron emission t7
- This data set may then be manipulated to show thin slices along any chosen axis of the body, similar to those obtained from other tomographic techniques, such as magnetic resonance imaging (MRI), X-ray computed tomography (X-ray CT), and positron emission tomography (PET). (wikipedia.org)
- A variety of imaging modalities, including structural and functional magnetic resonance imaging (MRI) and positron emission tomography (PET) studies of cerebral metabolism, have shown characteristic changes in the brain of patients with Alzheimer disease in prodromal and even presymptomatic states. (medscape.com)
- Positron emission tomography (PET) has shown parietotemporal decreases in cerebral blood flow and glucose metabolism in AD patients, compared with normal elderly adults. (uky.edu)
- PET/CT (positron emission tomography/computed tomography) is used to diagnose or determine the severity of many diseases, such as cancer . (healthgrades.com)
- We present some of the facts that led to development of the nuclear medicine image technology, as well as the general characteristics of single photon emission computed tomography and positron emission tomography. (sld.cu)
- Used in the medical imaging modality Positron Emission Tomography (PET), it is the current standard in diagnosing, staging, and monitoring treatment of cancers. (californianewswire.com)
- Prostate-specific membrane antigen (PSMA) targeted positron emission tomography (PET) is used for staging and localization of recurrence in prostate cancer. (lu.se)
Perfusion5
- Scholars@Duke publication: Predictive value of myocardial perfusion single-photon emission computed tomography and the impact of renal function on cardiac death. (duke.edu)
- The prognostic utility of myocardial perfusion single-photon emission CT (MPS) in patients with varying degrees of renal dysfunction and the impact of CKD on cardiac death prediction in patients undergoing MPS have not been investigated. (duke.edu)
- Comparison of 180° and 360° Arc Data Acquisition to Measure Scintigraphic Parameters from Gated Single Photon Emission Computed Tomography Myocardial Perfusion Imaging: Is There Any Difference? (ac.ir)
- Abstract Objective: The aim of the current study was to compare 180° and 360° data collection modes to measure end diastolic volume (EDV), end systolic volume (ESV) and ejection fraction (EF) values of the cardiac system by gated myocardial perfusion tomography. (ac.ir)
- Methods: Thirty-three patients underwent gated myocardial perfusion tomography. (ac.ir)
Imaging4
- Structural imaging, preferably with MRI when possible and with computed tomography (CT) when not, should be performed as a first-tier approach. (medscape.com)
- Nuclear imaging techniques are useful in assessing orthopedic joints because the image quality is not affected by the joint prostheses, as may be the case with some other imaging techniques, such as magnetic resonance imaging (MRI) and computed tomography (CT). (cadth.ca)
- Radionuclide imaging can expose patients to similar amounts of radiation than do comparable computed tomography (CT) studies. (msdmanuals.com)
- In combination with imaging of the morphology using a CT (Computed Tomography) fused images can be produced displaying the physiological process and the morphology in the same image simultaneously. (lu.se)
Cerebral3
- Studies using single-photon emission computed tomography scans show a decrease in glucose metabolism and cerebral blood flow in the caudate nucleus greater than that of the putamen. (medscape.com)
- Repeat assessment of quantitative CBF from a single session of scans with split-dose IMP is accurate, and may be applied to clinical research for assessing vascular reactivity in patients with chronic cerebral vascular disease. (elsevierpure.com)
- Regional cerebral blood flow was measured using single-photon emission computed tomography with xenon 133 as the tracer. (jamanetwork.com)
Parkinson's1
- We investigated the influence of gender and oestrogen status on: (1) age at onset, (2) presenting symptom, (3) severity and progression of motor symptoms (Unified Parkinson's Disease Rating Scale III (UPDRS-III) scores) and (4) amount and progression of nigrostriatal degeneration ([ 123 I]FP-CIT single photon emission computed tomography measurements). (bmj.com)
Quantitative1
- Comparison with technetium-99m sestamibi single-photon emission computed tomography and quantitative coronary angiography. (bvsalud.org)
Scan2
- A CT scan, also called a CAT (computed axial tomography) scan, makes layered images of an entire body area. (healthgrades.com)
- Axial computed tomography (CT) scan shows bilateral spondylolysis. (medscape.com)
Neuropsychological1
- Single-photon emission computed tomography and neuropsychological testing raised the possibility that Zika virus infection may lead to neuropsychiatric and cognitive symptoms. (cdc.gov)
Nuclear1
- El escáner nuclear se puede realizar con el paciente en reposo, inmediatamente después de ejercicio, o después de la administración de un medicamento que simula el esfuerzo del ejercicio. (epnet.com)
Dopamine1
- Additionally, position emission tomography scanning shows decreased D1 and D2 dopamine receptor binding sites in patients with HD. (medscape.com)
Underwent1
- Methods Thirty‐seven patients and 23 controls underwent high‐resolution single‐photon emission computed tomography. (umontreal.ca)
Dementia1
- Dementia refers not to a single disorder but to a number of syndromes characterized by diverse behavioral, cognitive, and emotional impairments. (cdc.gov)
Gamma1
- A single mutation in NEMO/IKK -gamma involving the deletion of exons 4 through 10 accounts for most (80%) incontinentia pigmenti mutations. (medscape.com)
Disorder1
- Major depressive disorder is the single largest contributor to disability worldwide, affecting as many as 300 million people annually ( 1 ). (psychiatryonline.org)
Blood flow1
- Emissions from the radionuclide indicate amounts of blood flow in the capillaries of the imaged regions. (wikipedia.org)
Assessment1
- This section is primarily designed to provide clients with an objective and detailed comparative assessment of key providers specific to a market segment in the single-photon emission computed tomography supply chain and the potential players for the same. (pharmiweb.com)
Data1
- By value and by device development, the global single-photon emission computed tomography market report provides data on global single-photon emission computed tomography along with capacity utilisation and pricing structure across the different regional markets. (pharmiweb.com)
Tests1
- Other tests may include plain radiographs, computed tomography scanning, or provocative discography. (bmj.com)
Method1
- A new method has been developed for diffusible tracers, to quantify CBF at rest and after pharmacological stress from a single session of dynamic scans with dual bolus administration of a radiotracer. (elsevierpure.com)
Presence1
- The report features a competitive landscape to provide clients with a dashboard view, based on categories of providers in the value chain, presence in the single-photon emission computed tomography portfolio and key differentiators. (pharmiweb.com)
Average1
- The price of single-photon emission computed tomography devices is deduced on the basis of average spending for the development of the particular type of system and associated devices. (pharmiweb.com)
Brain1
- Ebmeier KP, Booker K, Gregor A, Cull A, Dougall N, Sellar RJ & Goodwin GM (1994) Single photon emission computed tomography in long term survivors of adult brain tumours. (stir.ac.uk)
Magnetic2
- Three children with middle fossa arachnoid cysts, presenting with non-specific symptoms and otherwise well, were investigated before and after surgery with magnetic resonance and 99Tc-hexamethylpropyleneamineoxime single photon emission computerised tomography scans, to assess the effect of the cysts on cerebral blood flow. (nih.gov)
- Myocardium at risk after acute infarction in humans on cardiac magnetic resonance: quantitative assessment during follow-up and validation with single-photon emission computed tomography. (nih.gov)
Methylene-diphosphonate1
- Each patient underwent a preoperative technetium 99 methylene diphosphonate bone scan using single photon emission computed tomography. (tau.ac.il)
Brain4
- 11 Malison R, Price L, Berman R. Reduced brain serotonin transporter availability in major depression as measured by [I 123 ]2 β-carbomethoxy-3 β-(4-iodophenyl)-tropane and single photon emission computed tomography. (thieme-connect.com)
- The most active neurons take up the radioactive substance because of their higher metabolism, and the locus of radioactivity in the brain is ascertained by a complex scanner and sophisticated software that detects the emission of positrons (anti-electrons). (dummies.com)
- This damage can be focal, or restricted to a single area of the brain, or diffuse, affecting more than one region of the brain. (encyclopedia.com)
- Usually, TBI causes focal brain injury involving a single area of the brain where the head is struck or where an object such as a bullet enters the brain. (encyclopedia.com)
Radioactive material1
- Nuclear medicine images are made by giving the patient a short-lived radioactive material, and then using gamma camera or positron emission scanner that records radiation emanating from the patient. (news-medical.net)
Bone1
- He was sent to our ER, where multiple injuries were noted, including fractures of orbital floor, metatarsal bones, right 4th metatarsal bone, left ulna and left distal radius, and most important, closed fracture of atlas (C1) spine, shown as Computed Tomography (CT) scan in (Figure 1a-1e). (heraldopenaccess.us)
Photomultiplier1
- The crystals convert the gamma rays, emitted from the patient, to photons of light , and the photomultiplier tubes convert and amplify the photons to electrical signals. (howstuffworks.com)
Radionuclide1
- Emissions from the radionuclide indicate amounts of blood flow in the capillaries of the imaged regions. (wikipedia.org)
Detectors1
- MARK VI consisted of several sodium iodide photon detectors arranged in the rectangular shape around the head of the patient. (unitball.com)
Absorbed dose1
- Influence on voxel-based dosimetry: noise effect on absorbed dose dosimetry at single time-point versus sequential single-photon emission computed tomography. (ebsco.com)
Dementia1
- Dementia refers not to a single disorder but to a number of syndromes characterized by diverse behavioral, cognitive, and emotional impairments. (cdc.gov)
Outcome1
- Overall, the single most important determinant of a successful surgical outcome is patient selection. (massgeneral.org)
Emit3
- These standard radionuclides commonly emit gamma- ray photons with energies that are much lower than 511KeV. (unitball.com)
- A typical example is Tc-99m, which emit 140 KeV photon. (unitball.com)
- Emit gamma rays but no alpha or beta or very low energy photons. (unitball.com)
Advances1
- Breakthrough technological advances have led to the discovery of new molecular entities and made it easier for research labs to measure not just one, but panels of inflammatory mediators simultaneously in a single sample (3, 8, 9). (icem2012.org)
Methods1
- In both methods, a single blood sample was referred to calibrate the previously determined standard input function. (fujita-hu.ac.jp)
Data1
- NITRC is a free one-stop-shop for science researchers that need resources such as neuroimaging analysis software, publicly available data sets, or computing power. (nih.gov)
Treatment1
- We report a case of a 37-year-old woman with thyroid cancer who underwent robotic thyroidectomy and demonstrated unusual port-site implantation findings on post-treatment iodine-131 whole-body scintigraphy and single-photon emission computed tomography-computed tomography. (amjcaserep.com)
Signal1
- Because it uses no radioactive isotopes, fMRI is considered safe and protocols can be repeated many times in a single session to improve signal to noise. (dummies.com)