Abstract:
:This study investigated the feasibility of ordered subsets expectation maximisation (OS-EM) reconstruction of 180 degrees pinhole single-photon emission tomography (SPET) acquired in body contour mode (variable distance between the detector and the axis of rotation for each projection) with or without a tilted detector head. Four non-circular orbits were designed bearing in mind the rotation radius and tilt angle values of previous pinhole SPET acquisitions in patients with circular orbits. The reconstructions were performed using a dedicated OS-EM algorithm. Reconstructed images of line and uniformity phantoms showed that the spatial and uniformity characteristics of the radioactive objects were preserved. In comparison with the circular orbits, the non-circular orbits allowed only a moderate gain (maximum 10%) in resolution. However, body contour pinhole SPET would significantly facilitate the camera set-up and in this way should decrease the camera set-up time, which is an important parameter in patient studies.
journal_name
Eur J Nucl Med Mol Imagingauthors
Seret A,Flérès D,Firket O,Defrise Mdoi
10.1007/s00259-003-1213-2subject
Has Abstractpub_date
2003-09-01 00:00:00pages
1205-10issue
9eissn
1619-7070issn
1619-7089journal_volume
30pub_type
杂志文章abstract:PURPOSE:Familial adenomatous polyposis (FAP) is characterised by colonic and duodenal adenomatous polyps that carry a risk of malignant transformation. Malignant degeneration of duodenal adenomas is difficult to detect. We speculated that 2-((18)F)-fluoro-2-deoxy-D: -glucose positron emission tomography (FDG-PET) might...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-005-1955-0
更新日期:2006-03-01 00:00:00
abstract:PURPOSE:As hypoxia is believed to play an important role in the development and progression of prostate cancer, we evaluated whether 18F-labeled fluoroazomycin arabinoside (18F-FAZA) would be useful to identify tumor hypoxia in resectable prostate cancer. METHODS:Positron emission tomography (PET)/CT was performed on ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-011-1876-z
更新日期:2011-10-01 00:00:00
abstract:PURPOSE/BACKGROUND:[18F]fluoroethylcholine (18FECH) has been shown to be a valuable PET-tracer in recurrent prostate cancer (PCa), but still has limited accuracy. RM2 is a gastrin-releasing peptide receptor (GRPr) antagonist that binds to GRPr on PCa cells. Recent studies suggest that GRPr imaging with PET/CT is a prom...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-017-3702-8
更新日期:2017-08-01 00:00:00
abstract:PURPOSE:To know whether mild cognitive impairment (MCI) patients will develop Alzheimer's disease (AD) dementia in very short time or remain stable is of crucial importance, also considering new experimental drugs usually tested within very short time frames. Here we combined cerebrospinal fluid (CSF) AD biomarkers and...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-020-04853-4
更新日期:2020-12-01 00:00:00
abstract:PURPOSE:The aim of this study was to investigate the influence of a computer-based decision support system (DSS) on performance and inter-observer variability of interpretations regarding ischaemia and infarction in myocardial perfusion scintigraphy (MPS). METHODS:Seven physicians independently interpreted 97 MPS stud...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-008-0807-0
更新日期:2008-09-01 00:00:00
abstract:PURPOSE:The aim of the present study is to prospectively evaluate the prognostic value of previously defined [(18)F]2-fluoro-2-deoxy-D-glucose positron emission tomography (FDG PET) criteria of early metabolic response in patients with locally advanced rectal cancer (LARC) after long-term follow-up. METHODS:Forty-two ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-012-2229-2
更新日期:2012-12-01 00:00:00
abstract:PURPOSE:Cervical dystonia (CD) is associated with tremor/jerks (50%) and psychiatric complaints (17-70%). The dopaminergic system has been implicated in the pathophysiology of CD in animal and imaging studies. Dopamine may be related to the motor as well as non-motor symptoms of CD. CD is associated with reduced striat...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-017-3664-x
更新日期:2017-08-01 00:00:00
abstract:PURPOSE:The aim of this study was to investigate the predictive potential of pre-operative regional cerebral blood flow (rCBF) in the pre-supplementary motor area (pre-SMA) and clinical factors in Parkinson's disease (PD) patients treated with subthalamic nucleus (STN) stimulation. METHODS:Ten patients underwent rCBF ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 临床试验,杂志文章
doi:10.1007/s00259-009-1198-6
更新日期:2010-01-01 00:00:00
abstract:PURPOSE:Positron emission tomography (PET) has been widely utilized in the study of traumatic brain injury (TBI) for decades. While most applications of PET have attempted to assess neuronal function after TBI, more recently, novel radiotracers have sought to image biomarkers in the context of TBI and chronic traumatic...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章,评审
doi:10.1007/s00259-020-04926-4
更新日期:2021-02-01 00:00:00
abstract::Flow quantitation with nitrogen-13 ammonia ((13)NH(3)) and positron emission tomography (PET) is dependent on an accurate blood time-activity curve. This is conveniently derived from the PET images by drawing a region of interest in the left ventricular cavity. The blood time-activity curve obtained in this way, howev...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 临床试验,杂志文章
doi:10.1007/s00259-003-1329-4
更新日期:2004-01-01 00:00:00
abstract:PURPOSE:Radioligand binding studies show that beta(1)-adrenoceptor (beta(1)-AR) density may be reduced in heart disease without down regulation of beta(2)-ARs. Radioligands are available for measuring total beta-AR density non-invasively with clinical positron emission tomography (PET) but none are selective for beta(1...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-007-0553-8
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:In vivo Alzheimer's disease (AD) biomarkers for tau pathology are cerebrospinal fluid (CSF) phosphorylated tau (p-tau) and [18F]flortaucipir positron emission tomography (PET). Our aim was to assess associations between CSF p-tau with [18F]flortaucipir PET and the associations of both tau biomarkers with cognit...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-020-04758-2
更新日期:2020-11-01 00:00:00
abstract:PURPOSE:We present our first clinical experience with O-(2-18F-fluoroethyl)-L-tyrosine (FET) PET in patients with high-grade glioma treated with various neurooncological therapies including tumour-treating fields (TTFields) for the differentiation of tumour progression from treatment-related changes. METHODS:We retros...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-018-3992-5
更新日期:2018-07-01 00:00:00
abstract:PURPOSE:Our purpose was to examine the prognostic value of post-CRT PET based on the presence or absence of FDG-avid metastatic lymph node(s) and metabolic response of the primary tumor in patients with clinically node-positive ESCC treated with definitive chemoradiotherapy (dCRT). METHODS:We identified 108 eligible p...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-017-3901-3
更新日期:2018-05-01 00:00:00
abstract:PURPOSE:Functional brain (99m)Tc-HMPAO single-photon emission computed tomography (SPECT) is a useful diagnostic tool for assessment of regional cerebral blood flow, particularly in dementia, cerebrovascular disease and epilepsy. Currently, the European and American Association of Nuclear Medicine Procedure Guidelines ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-008-0836-8
更新日期:2008-12-01 00:00:00
abstract::Inflammation plays a major role in the development of many diseases. This review article summarizes recent research in the field of in vivo imaging of inflammation. Novel methodologies using PET with (68)Ga peptides targeting, for example, vascular adhesion protein 1 are discussed. ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章,评审
doi:10.1007/s00259-011-1987-6
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Recurrence in glioblastoma patients often occur close to the original tumour and indicates that the current treatment is inadequate for local tumour control. In this study, we explored the feasibility of using multi-modality imaging at the time of radiotherapy planning. Specifically, we aimed to identify par...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 临床试验,杂志文章
doi:10.1007/s00259-018-4180-3
更新日期:2019-03-01 00:00:00
abstract:PURPOSE:The purpose of this study was to compare dynamic 18F-FGln PET/CT images of healthy subjects and cancer patients and explore the best imaging phase for different cancers. METHODS:Thirteen healthy volunteers and 31 cancer patients separately underwent 18F-FGln and 18F-FDG PET/CT scans within 1 week. The distribu...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-019-04543-w
更新日期:2020-09-01 00:00:00
abstract:PURPOSE:Despite modern CT systems and expert evaluators, the diagnostic performance of coronary CT angiography is limited by overestimation of vessel stenosis which reduces the positive predictive value (PPV) of the test. The aim of this study was to evaluate the performance of combined cardiac PET/64-detector CT angio...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-009-1213-y
更新日期:2009-12-01 00:00:00
abstract:PURPOSE:The aim of this study was to investigate the effect of positron range on visualization and quantification in (18)F, (68)Ga and (124)I positron emission tomography (PET)/CT of lung-like tissue. METHODS:Different sources were measured in air, in lung-equivalent foams and in water, using a clinical PET/CT and a m...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-011-1732-1
更新日期:2011-05-01 00:00:00
abstract:PURPOSE:Although two norepinephrine transporter (NET) radioligands, (S,S)-[(18)F]FMeNER-D(2) and (S,S)-[(11)C]MeNER, have been reported to have different characteristics, there has not been a direct comparative study in vivo. METHODS:In this preliminary study, two rhesus monkeys underwent three PET measurements each, ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-009-1194-x
更新日期:2009-11-01 00:00:00
abstract:PURPOSE:(18)F-Fluoride PET/CT is a relatively undervalued diagnostic test to measure bone metabolism in bone diseases. Hyperostosis cranialis interna (HCI) is a (hereditary) bone disease characterised by endosteal hyperostosis and osteosclerosis of the skull and the skull base. Bone overgrowth causes entrapment and dys...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-010-1655-2
更新日期:2011-05-01 00:00:00
abstract::Hypoxia imparts resistance to radiotherapy and chemotherapy and also promotes a variety of changes in tumor biology through inducible promoters. The purpose of this study was to evaluate the use of positron emission tomography (PET) imaging with fluorine-18 fluoromisonidazole (FMISO) in soft tissue sarcomas (STS) as a...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 临床试验,杂志文章
doi:10.1007/s00259-002-1096-7
更新日期:2003-05-01 00:00:00
abstract:PURPOSE:Firefly luciferase catalyzes the oxidative decarboxylation of D: -luciferin to oxyluciferin in the presence of cofactors, producing bioluminescence. This reaction is used in optical bioluminescence-based molecular imaging approaches to detect the expression of the firefly luciferase reporter gene. Biokinetics a...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-008-0870-6
更新日期:2008-12-01 00:00:00
abstract:PURPOSE:The high failure rates in the radiotherapy (RT) target volume suggest that patients with locally advanced oesophageal cancer (LAOC) would benefit from increased total RT doses. High 2-deoxy-2-[(18)F]fluoro-D-glucose (FDG) uptake (hotspot) on pre-RT FDG positron emission tomography (PET)/CT has been reported to ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-015-3004-y
更新日期:2015-05-01 00:00:00
abstract::Functional imaging of small animals, such as mice and rats, using ultra-high resolution positron emission tomography (PET) and single-photon emission tomography (SPET), is becoming a valuable tool for studying animal models of human disease. While several studies have shown the utility of PET imaging in small animals,...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-002-0776-7
更新日期:2002-05-01 00:00:00
abstract:PURPOSE:The aim of this study was to assess the accuracy of (18)F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT to visualize lymph node metastases before the start of neoadjuvant chemotherapy and to determine how often the visualization is sufficiently prominent to allow monitoring of the axillary resp...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 临床试验,杂志文章
doi:10.1007/s00259-009-1343-2
更新日期:2010-06-01 00:00:00
abstract:PURPOSE:Interim 2-[(18)F]fluoro-2-deoxy-D-glucose positron emission tomography (FDG PET) has shown to be an accurate predictor of prognosis in Hodgkin's lymphoma (HL). However, FDG PET response criteria are a matter of ongoing debate. The aim of this study was to confirm the prognostic value of interim PET/CT in HL pat...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-011-1741-0
更新日期:2011-06-01 00:00:00
abstract:PURPOSE:Investigate whether 18F-FDG PET-CT has the potential to predict the major pathologic response (MPR) to neoadjuvant sintilimab in resectable NSCLC patients, and the potential of sifting patients who probably benefit from immunotherapy. METHODS:Treatment-naive patients with resectable NSCLC (stage IA-IIIB) recei...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章
doi:10.1007/s00259-020-04711-3
更新日期:2020-05-01 00:00:00
abstract::In locally advanced head and neck squamous cell carcinoma (HNSCC), the role of imaging becomes more and more critical in the management process. In this framework, molecular imaging techniques such as PET allow noninvasive assessment of a range of tumour biomarkers such as metabolism, hypoxia and proliferation, which ...
journal_title:European journal of nuclear medicine and molecular imaging
pub_type: 杂志文章,评审
doi:10.1007/s00259-014-2972-7
更新日期:2015-04-01 00:00:00