Abstract:
:Dual-isotope studies using 123I and 201Tl allow the assessment of sympathetic reinnervation in patients following heart transplantation. 123I-meta-iodobenzyl guanidine (123I-MIBG) serves as a tracer of the integrity of the sympathetic nervous system. 201Tl is used for landmarking to allow better delineation of the myocardium due to faint 123I-MIBG accumulation in heart transplants. The aim of this study was to evaluate the influence of parameters such as crossover, attenuation and the 123I/201TI activity ratio on the assessment of the myocardial 123I-MIBG uptake ratio using phantom and patient studies. Crossover was calculated using the ratio: 201TI counts in the 123I energy window/201Tl counts in the 201Tl window. Phantom studies were performed using a rectangular phantom (RP) and a cardiac phantom (CP). The mean crossover from the 201Tl to the 123I energy window was 11.48% (RP) and 11.13% (CP). Depending on attenuation in water (depth of water 0-5 cm), crossover increased from 10.92 to 15.85% (RP) and from 11.05 to 15.79% (CP). In order to confirm that the experimental crossover results were equivalent to those obtained in patient studies, 15 patients underwent myocardial scintigraphy. After injection of 201Tl, a simultaneous dual-window acquisition was performed to assess crossover from the 201Tl to the 123I window. The mean crossover was 15.35%, as high as the crossover assessed in phantom studies, taking into account attenuation and scatter caused by the chest wall. In order to reduce 201Tl crossover, the 123I activities were six times as high as the 201Tl activities.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Nucl Med Communjournal_title
Nuclear medicine communicationsauthors
Krause BJ,Gürtner C,Kranert WT,Maul FD,Baum RP,Hör Gdoi
10.1097/00006231-199508000-00009subject
Has Abstractpub_date
1995-08-01 00:00:00pages
675-82issue
8eissn
0143-3636issn
1473-5628journal_volume
16pub_type
杂志文章abstract:OBJECTIVE:The purpose of this study was to assess the incremental value of technetium-99m-methyl diphosphonate (Tc-MDP) single-photon emission computed tomography/computed tomography (SPECT/CT) over Tc-MDP two-phase bone scan (TPBS) in the assessment of the patients with pain following knee arthroplasty. PATIENTS AND ...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000825
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Chronic low serum vitamin D concentrations are common among the elderly. Recent studies have suggested that its metabolite, 25-hydroxyvitamin D (25-OHD), might be important for preserving cognitive functions through specific brain protective effects. However, this hypothesis is still under discussion. The ai...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e32835674c4
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVES AND METHODS:The recommended method for the measurement of radiochemical purity (RCP) of ¹¹¹In-labelled pentetreotide is thin-layer chromatography with a silica gel as the stationary phase and a 0.1 N sodium citrate solution (pH 5) as the mobile phase. According to the supplier's instructions, the mobile phas...
journal_title:Nuclear medicine communications
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doi:10.1097/MNM.0b013e32834a7003
更新日期:2011-12-01 00:00:00
abstract:PURPOSE:This study aimed to evaluate the efficacy of automatic exposure control (AEC) in order to optimize low-dose computed tomography (CT) protocols for patients of different ages undergoing cardiac PET/CT and single-photon emission computed tomography/computed tomography (SPECT/CT). METHODS:One PET/CT and one SPECT...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000679
更新日期:2017-06-01 00:00:00
abstract::The radiation dose to the pulp of both index fingers has been measured in a radiopharmacy supplying 11 000 patient doses a year, in a hospital dispensary (4500 doses a year) and in its injection area. Tungsten syringe shields were used for one week and not used during the other week. In the radiopharmacy and the dispe...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198508000-00004
更新日期:1985-08-01 00:00:00
abstract:BACKGROUND:123I has been promoted for diagnostic imaging as a means of avoiding 'stunning'. It has also been suggested that the more favourable physical characteristics and consequent enhanced imaging resolution provided by 123I offers a more accurate diagnostic assessment of the extent of disease prior to therapy. Thi...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200402000-00006
更新日期:2004-02-01 00:00:00
abstract:BACKGROUND:Paediatric dual X-ray absorptiometry (DXA) studies present a number of technical problems. One of these is that the edge detection algorithms designed for the adult skeleton may fail for paediatric studies. Hologic provide alternative algorithms for low bone density studies. AIM:To assess low-density softwa...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200506000-00002
更新日期:2005-06-01 00:00:00
abstract::Captopril renography is used for the non-invasive diagnosis of renovascular hypertension, but suffers from the drawbacks of lower sensitivity and false-positive tests due to a fall in blood pressure. Aspirin renography has been proposed as a useful test for evaluation of unilateral renal artery stenoses of moderate de...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-200004000-00006
更新日期:2000-04-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-200106000-00002
更新日期:2001-06-01 00:00:00
abstract::Chronic synovitis often occurs in people with haemophilia. Untreated chronic haemophilic synovitis affects the metabolism of chondrocytes, thus leading to haemophilic arthropathy. A recently introduced therapeutic protocol includes radiation synovectomy (RS), a safe and cost-effective therapeutic method, which has giv...
journal_title:Nuclear medicine communications
pub_type: 杂志文章,评审
doi:10.1097/MNM.0b013e32835ed50c
更新日期:2013-04-01 00:00:00
abstract:AIM:Although rib uptake is frequently detected in follow-up bone scans of breast cancer patients, few studies have assessed its clinical significance. PATIENTS AND METHODS:Among 1208 breast cancer patients who underwent a bone scan between 2011 and 2014, 157 patients presented with newly detected rib uptake at follow-...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000597
更新日期:2016-12-01 00:00:00
abstract::Foot problems are common causes of disability in diabetic patients with as many as 25% expected to develop severe foot or leg problems during their lifetimes. Although skin ulceration is the most frequent problem, bones may also be involved in two different clinical conditions: osteomyelitis and Charcot osteoarthropat...
journal_title:Nuclear medicine communications
pub_type: 杂志文章,评审
doi:10.1097/01.mnm.0000230066.23823.cc
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVE:The herpes simplex virus thymidine kinase (HSVtk) gene has frequently been applied as a reporter gene for monitoring transgene expression in animal models. In clinical gene therapy protocols, however, extremely low expression levels of the transferred gene are generally observed. Consequently, sensitive and s...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/01.mnm.0000186609.12895.20
更新日期:2006-01-01 00:00:00
abstract::Radically operated tumour patients (gastrointestinal cancer, n = 10; lung cancer, n = 10) were subjected to continuous prospective monitoring of the serum level of tissue polypeptide antigen (TPA) prior to surgical treatment as well as during the subsequent year. The following observations were made: Immediately after...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198602000-00007
更新日期:1986-02-01 00:00:00
abstract::This paper proposes the utilization of 225Ac for the alpha-radioimmunotherapy of cancer. The isotope decays with a radioactive half-life of 10 days into a cascade of short-lived alpha- and beta-emitting isotopes. In addition, when indicated by the pharmacokinetic requirements of particular clinical applications, 213Bi...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199302000-00009
更新日期:1993-02-01 00:00:00
abstract::Pulmonary involvement in Behçet's disease (BD) is reported to indicate poor prognosis and high mortality. Our aim was to evaluate the pulmonary vascular status in BD. As 123I-meta-iodobenzylguanidine (123I-MIBG) shares the same uptake, storage and release mechanisms as norepinephrine, associated with the functional st...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-200110000-00005
更新日期:2001-10-01 00:00:00
abstract::Since the appearance of superficial tissue is often an unreliable indicator of deep tissue viability in cases of frostbite, radionuclide scintigraphy with 99Tcm-disodium oxidronate (HDP) was used to assess changes in tissue viability after experimental freezing and thawing of the rabbit ear. One shaved ear, left or ri...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199207000-00010
更新日期:1992-07-01 00:00:00
abstract::The administration of radionuclide therapies presents significant radiation protection challenges. The aim of this work was to develop a delivery system for intravenous radioisotope therapies to substantially moderate radiation exposures to staff and operators. A novel device (InfuShield) was designed and tested befor...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000634
更新日期:2017-03-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200001000-00017
更新日期:2000-01-01 00:00:00
abstract::The objectives of this study were to measure semi-quantitatively uptake of 99Tcm-sestamibi (99Tcm-MIBI) by tumour tissue in patients with lung cancer and to investigate its relationship with clinical response to chemotherapy. 99Tcm-MIBI single photon emission tomography was performed at the time of diagnosis in 31 pat...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199711000-00013
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVE:Medullary thyroid carcinoma is a rare, potentially aggressive tumour, with relatively worse prognosis than well-differentiated thyroid cancer. We evaluated the long-term outcomes and prognosis of medullary thyroid carcinoma patients at a single institution in India and compared outcomes based on results of RE...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000001264
更新日期:2020-11-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199311000-00016
更新日期:1993-11-01 00:00:00
abstract:PURPOSE:The purpose of this study was to show the viability and performance of a shape-based pattern recognition technique applied to I-N-omega-fluoropropyl-2-beta-carbomethoxy-3beta-(4-iodophenyl) nortropane single-photon emission computed tomography (FP-CIT SPECT) in patients with parkinsonism. METHODS:A fully autom...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e328314b863
更新日期:2009-03-01 00:00:00
abstract::The uptake of 123I-5-iodo-2-thiouracil in melanotic and amelanotic melanoma implanted in Syrian golden hamsters was studied. A selective accumulation was found in the tumours. Uptake of 123ITU in melanotic melanomas was 4 to 5 times the uptake in amelanotic ones. For both tumours high ratios of tumours versus non-tumo...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198510000-00007
更新日期:1985-10-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e328352290f
更新日期:2012-06-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e3282f1acac
更新日期:2007-12-01 00:00:00
abstract::Right ventricular performance was assessed in 37 patients with acute myocardial infarction within two hours of admission to Coronary Care and compared to results in 21 normal volunteers and 12 patients undergoing coronary arteriography. Right ventricular ejection fraction (RVEF) was measured from gated xenon-133 scans...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-198901000-00006
更新日期:1989-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1097/MNM.0b013e328356185c
更新日期:2012-09-01 00:00:00
abstract::System upgrades are a constant feature of many highly technical specialties and are normally assumed to have a negligible effect on patient data. We report on the assessment of an upgrade made to a Norland XR-26 dual-energy X-ray absorptiometry (DXA) system. The upgraded version (2.3) consisted of new hip positioning ...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199604000-00161
更新日期:1996-04-01 00:00:00
abstract:BACKGROUND:The indocyanine green retention rate at 15 min (ICGR15) is a gold standard parameter of liver function when deciding on the extent of hepatectomy. However, ICGR15 is influenced by several hepatic conditions. To evaluate auxiliary preoperative liver functional reserve, we examined the clinical significance of...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
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更新日期:2020-04-01 00:00:00