Abstract:
INTRODUCTION:The metabotropic glutamate receptor subtype 5 (mGluR5) is distributed throughout the central nervous system (CNS), and has been suggested to be a potential target for several CNS disorders suchas Parkinson's disease, pain, anxiety, depression, schizophrenia, and addiction. We report here on the rhesus monkey biodistribution and radiation dosimetry of [18F]3-fluoro-5-[(pyridine-3-yl)ethynyl]benzonitrile, [18F]F-PEB, a mGluR5 positron emission tomography (PET) radiotracer. METHODS:Three male and two female rhesus monkeys were imaged using the Discovery ST PET/computed tomography scanner. A total of 25 whole body PET emissions were acquired over 3 h (23 emissions in one subject). Regions of interest were drawn in the brain, lungs, heart, liver, spleen, bladder, and testes. The absorbed radiation dose was calculated using OLINDA v1. RESULTS:At the end of the imaging session, 45% of the [18F]F-PEB activity had been excreted by the liver and into the gastrointestinal tract and 10% had been excreted into the urinary bladder. When extrapolating to the adult human, the largest absorbed radiation doses were located in the upper large intestine (males: 0.18 mGy/MBq, females: 0.20 mGy/MBq) and small intestine (males: 0.16 mGy/MBq, females: 0.19 mGy/MBq). Effective radiation dose was 0.033 mSv/MBq for males and 0.034 mSv/MBq for females, similar to many other [18F] ligands. CONCLUSION:The effective radiation dose of [18F]F-PEB obtained from rhesus is similar to many other clinically utilized [18F] ligands.
journal_name
Nucl Med Communjournal_title
Nuclear medicine communicationsauthors
Bélanger MJ,Krause SM,Ryan C,Sanabria-Bohorquez S,Li W,Hamill TG,Burns HDdoi
10.1097/MNM.0b013e3283060c72subject
Has Abstractpub_date
2008-10-01 00:00:00pages
915-9issue
10eissn
0143-3636issn
1473-5628pii
00006231-200810000-00009journal_volume
29pub_type
杂志文章abstract::A method for attenuation and scatter correction of brain single photon emission computed tomography (SPECT) is described where computed tomography (CT) images of the brain are used for the calculation of attenuation maps. The method is evaluated for the substance 99mTc hexamethylpropylene amine oxime. A transmission d...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-200304000-00011
更新日期:2003-04-01 00:00:00
abstract::N-isopropyl-p-I-123-iodoamphetamine (123I-IMP) is extracted by the brain in proportion to regional blood flow. It is particularly useful in the clinical assessment of various pathological conditions related to altered cerebral flow. Moreover, it has been reported that 123I-IMP is avidly incorporated into melanin and m...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199602000-00010
更新日期:1996-02-01 00:00:00
abstract::To assess the precision of gated equilibrium radioventriculography in measuring changes in left ventricular stroke volume (LVSV), we studied five dogs each with a chronically implanted electromagnetic flowmeter on the ascending aorta. Per cent changes in left ventricular stroke counts (LVSC) were compared to those in ...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198812000-00009
更新日期:1988-12-01 00:00:00
abstract::The ICRP has now recommended that the dose limit to the surface of the mother's abdomen during the declared term of pregnancy is reduced to 2 mSv. Direct measurements of the radiation dose to technologists carrying out a variety of imaging studies were made. The average dose ranged from 0.3 micro Sv for a liver scan t...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199211000-00004
更新日期:1992-11-01 00:00:00
abstract:OBJECTIVES:Ewing sarcoma breakpoint region 1 (EWSR1) translocation-negative tumors represent a minor portion of small round cell tumors consistent with Ewing sarcoma morphology. The purpose of this study was to differentiate EWSR1 translocation-positive tumors from EWSR1 translocation-negative tumors using PET-computed...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000001031
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Measurement errors occurring during glomerular filtration rate (GFR) studies propagate to an error in the calculated GFR. Previous work has modelled measurement errors for slope-intercept (SI-GFR), single-sample (SS-GFR) and slope-only (SO-GFR) methods. In this study, we have extended these models. The prima...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000977
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:Large-scale clinical trials have demonstrated that beta blocker therapy improves the prognosis of dilated cardiomyopathy (DCM), but cardiac events sometimes occur even in patients showing favourable response to the therapy. In this study, the usefulness of meta-iodobenzyguanidine (MIBG) in predicting cardiac ...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200502000-00003
更新日期:2005-02-01 00:00:00
abstract::To evaluate the incidence, severity and clinical course of right ventricular (RV) involvement after acute inferior myocardial infarction (IMI), 78 patients (pts) with IMI were investigated by both 99Tcm-pyrophosphate (PYP) scan and gated blood pool scan (GBPS). GBPS was performed at admission and 10 days, whereas 99Tc...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198612000-00007
更新日期:1986-12-01 00:00:00
abstract:PURPOSE:The NHS National PET-CT Audit Programme was launched in 2008 as part of a national NHS programme to widen patient access to PET-computed tomography (CT) imaging in England. However, to implement clinical audit effectively, healthcare professionals need to be fully engaged with the process. The purpose of the pi...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000161
更新日期:2014-10-01 00:00:00
abstract::While 18F-FDG labelling of monocytes would allow in vivo trafficking with positron emission tomography (PET), present methods suffer from poor retention of radioactivity. We investigated the feasibility of utilizing insulin for improved [18F]fluorodeoxyglucose (18F-FDG) labelling. Separated human monocytes and lymphoc...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-200206000-00007
更新日期:2002-06-01 00:00:00
abstract::We performed a prospective study to establish the optimal background correction algorithm for the determination of differential renal function (DRF), using 99Tc(m)-diethylenetriamine pentaacetate (99Tc(m)-DTPA) in the presence of unilateral hydronephrosis, with 24 h 99Tc(m)-dimercaptosuccinic acid (99Tc(m)-DMSA) uptak...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199803000-00009
更新日期:1998-03-01 00:00:00
abstract:OBJECTIVE:To establish response patterns in PET following stereotactic body radiotherapy (SBRT) of malignant lung lesions. METHODS:Patients with malignant lung lesions treated with SBRT were retrospectively reviewed. All patients received 40-52 Gy in three to five equal fractions. An independent, blinded radiologist r...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e3283512b08
更新日期:2012-06-01 00:00:00
abstract::It is possible to obtain an estimate of the bone uptake of diphosphonates after 3 h (BU) on the basis of the difference between the dose administered and the sum of the component eliminated in the urine plus the component present in the extra-osseous volume of distribution. The results of this simple method have been ...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199509000-00008
更新日期:1995-09-01 00:00:00
abstract::Patients with a wide variety of orthopaedic disorders can be usefully investigated by nuclear medicine techniques, mostly by bone scintigraphy. Overall this area of nuclear medicine activity is increasing which is a trend that can be expected to continue. The principal conditions that are imaged are fractures and thei...
journal_title:Nuclear medicine communications
pub_type: 杂志文章,评审
doi:10.1097/00006231-199405000-00006
更新日期:1994-05-01 00:00:00
abstract::The biodistribution of 131I-6 beta-iodomethyl-19-norcholesterol (NP-59) was assessed in hypercholesterolaemic patients and in a rabbit model of HC to examine the alterations in the relative distribution of NP-59 and its metabolites and to explain the changes in the patterns of adrenal cortical imaging in patients with...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198608000-00010
更新日期:1986-08-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000557
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:Positron emission tomography (PET) imaging using [18F]fluorodeoxyglucose (18F-FDG) is recognized to have a major role in oncological imaging. Over recent years there has been a steady increase in the use of gamma camera PET (GCPET) systems as these are less expensive than dedicated PET scanners and facilitat...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/01.mnm.0000130239.76326.ca
更新日期:2004-07-01 00:00:00
abstract:OBJECTIVES:Radionuclide therapies, including treatment of neuroendocrine tumors with lutetium-177 (Lu-177) octreotate, often involve hospital admission to minimize radiation exposure to the public. Overnight admission due to Lu-177 octreotate therapy incurs additional cost for the hospital and is an inconvenience for t...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000232
更新日期:2015-02-01 00:00:00
abstract::We have assessed the usefulness of a radionuclide dilution method for estimation of ascitic fluid volume. 99Tc(m) macroaggregated albumin (10 MBq) was injected into the peritoneal fluid. Multiple samples were taken using a trocath peritoneal dialysis catheter over a 4-h period. Blood samples were taken at the same tim...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200012000-00009
更新日期:2000-12-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198601000-00006
更新日期:1986-01-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200212000-00003
更新日期:2002-12-01 00:00:00
abstract:AIM:To perform a detailed analysis of the performance of mobile intraoperative imaging systems and gamma probes in a phantom set-up, and compare this with a conventional gamma camera. METHODS:Two separate experiments were performed. In the first, a modified Jaszczak phantom equipped with five (99m)Tc-filled hot sphere...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e3283508577
更新日期:2012-05-01 00:00:00
abstract:OBJECTIVE:To investigate the relationship between the prognosis and glucose transporter-1 (Glut-1) expression or fluorine-18 fluorodeoxyglucose uptake using partial volume correction and dual-point imaging in surgically resected nonsmall cell lung cancer (NSCLC) patients. METHODS:Our patient population consisted of 10...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000001118
更新日期:2020-01-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000371
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:The uptake of F-fluorodeoxyglucose (F-FDG) PET/computed tomography (CT) is known to be linked to programmed death ligand 1 (PD-L1) expression on tumor cells (TC). However, the association between PD-L1 expression on immune cells (IC) and F-FDG accumulation is still unclear. Here, we conducted a clinicopatholo...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000001136
更新日期:2020-03-01 00:00:00
abstract::The presence of distant metastases is the main prognostic factor in patients with breast cancer and has a significant influence in the choice of therapy. Therefore, chest X-ray, bone scintigraphy and ultrasound of the abdomen are performed to detect distant metastases at diagnosis and follow-up. Fluorodeoxyglucose pos...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-200209000-00009
更新日期:2002-09-01 00:00:00
abstract::The aim of the study was to measure the actual dose at 1 m from the patients per unit activity with the aim of providing a more accurate prediction of the dose levels around radioiodine patients in the hospital, as well as to compare our results with the literature. In this work the demonstration of a patient body tis...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000223
更新日期:2015-02-01 00:00:00
abstract::The standard nuclear medicine textbooks describe the pyramidal lobe of the thyroid as arising from the upper part of the thyroid lobes. Anatomy and surgical texts however describe it as a thyroglossal tract remnant and state that it arises from the isthmus. Review of 150 thyroid scintigrams confirms that on scintigrap...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198403000-00006
更新日期:1984-03-01 00:00:00
abstract:OBJECTIVES:We investigated the localization pattern of a novel imaging agent, (99m)Tc-labelled glucosamine (ECDG), in a variety of rheumatic conditions. MATERIALS AND METHODS:Sixteen patients were recruited into the study, with either active rheumatoid arthritis or osteoarthritis. (99m)Tc-ECDG was prepared in-house an...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000096
更新日期:2014-06-01 00:00:00
abstract::To clarify the biological significance of [18F]fluorodeoxyglucose (18F-FDG) accumulation in patients with cancer, we assessed the relationships between 18F-FDG uptake and glucose transporter-1 (GLUT-1) expression and proliferation rate in human glioma and lung cancer. We obtained FDG PET images and measured standardiz...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200401000-00003
更新日期:2004-01-01 00:00:00