Abstract:
OBJECTIVE:Assessing the relative function of each of the three kidneys using nuclear scintigraphy with standard planar imaging in patients having undergone kidney transplant is problematic because of the different photon-attenuation factors associated with native versus transplanted kidneys. To address this, we applied a correction for the attenuation of 140-keV photons based on measurements taken on cross-sectional anatomical images. We performed a validation of the method using single-photon emission computed tomography/computed tomography (SPECT/CT). METHODS:Abdominal CT scans of 13 patients who had undergone simultaneous liver-kidney transplants were examined for kidney depth. Ten of those patients had undergone Tc-99m-mercaptoacetyltriglycine (MAG3) renal scans, using a Philips Precedence SPECT/CT scanner by which abdominal CT and renal SPECT acquisition followed the planar scintigraphic renogram. Kidney depth at the level of the renal hilum was measured on the concurrently acquired CT images, and it was used to derive an attenuation correction factor (ACF) that was applied to the background-subtracted activity in the planar scintigraphic renogram. RESULTS:ACFs calculated from kidney depths ranged from 1.31 to 4.33. The ratio of ACFs for transplant to native kidneys ranged from 0.63 to 1.51, with an average of 0.90. Applying attenuation correction when calculating relative function increased the value of native kidney function by as much as 40%. CONCLUSION:Attenuation correction through measurements taken on anatomical images, preferably obtained concurrently using a hybrid SPECT/CT scanner, should improve the accuracy of functional measurements in renal scintigraphy. This improved accuracy is clinically important in assessing the relative function of native and transplant kidneys in recipients of simultaneous liver-kidney transplants.
journal_name
Nucl Med Communjournal_title
Nuclear medicine communicationsauthors
Palmer MR,Donohoe KJ,Francis JM,A Mandelbrot Ddoi
10.1097/MNM.0b013e328347e958subject
Has Abstractpub_date
2011-08-01 00:00:00pages
738-44issue
8eissn
0143-3636issn
1473-5628journal_volume
32pub_type
杂志文章abstract::This article discusses the problems facing nuclear medicine in the coming decade and outlines the areas in which new developments or expansion can be expected. The questions considered include legislative requirements, the need to educate the public and the medical profession on the strengths of nuclear medicine, appr...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the diagnostic value of 2-(fluorine-18)-fluoro-2-deoxy-D-glucose ((18)F-FDG) PET/CT in comparison with MRI for the detection of recurrent ovarian cancer. METHODS:Forty-seven patients with suspected ovarian cancer recurrence after total ablative or cytoreductive surgery, ...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e32834fc5bf
更新日期:2012-05-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199704000-00174
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journal_title:Nuclear medicine communications
pub_type: 杂志文章,meta分析
doi:10.1097/MNM.0000000000000908
更新日期:2018-12-01 00:00:00
abstract::Reticuloendothelial system (RES) phagocytic function or capacity can be measured by clearance studies with test substances. This study in the rat examines three commercially available 99Tcm-labelled test substances, and different methods of calculating RES capacity. Albures size 500 nm and sulphur colloid size 600 nm ...
journal_title:Nuclear medicine communications
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doi:10.1097/00006231-198705000-00004
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abstract::The aim of this study was to demonstrate that radionuclide sentinel node detection can be applied to patients with non-palpable breast cancer. One hundred and ten consecutive women with unilateral breast cancer were studied. Group 1 was made up of 80 patients with palpable breast cancer (mean age, 58 years) and group ...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
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abstract::The therapeutic or surgical management of acute localized irradiation is very complicated due to the delayed occurrence of ionizing radiation effects. There is a great need for non-invasive imaging techniques to delineate healthy from exposed tissues. Such a technique should be of value considering that spread of dama...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:
更新日期:1995-07-01 00:00:00
abstract::The application of a Well-type germanium semiconductor detector creates new possibilities in erythrocyte survival studies. Using 51Cr, the effective dose equivalent in a standard procedure can be reduced from approximately 780 to 2 microSv. The properties of the detector, namely, high efficiency and high energy resolu...
journal_title:Nuclear medicine communications
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doi:10.1097/00006231-199105000-00010
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更新日期:2018-05-01 00:00:00
abstract::Cystic fibrosis patients require pancreatic enzyme supplements to aid food digestion. It is suspected that incorrect delivery of this enzyme may result in both significant malabsorption and the development of strictures in the proximal colon caused by the high-dose supplement reaching this region before the food. Inve...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199808000-00006
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:Interobserver agreement in measuring positron emission tomography (PET)/computed tomography (CT) parameters is critical for head and neck cancer management. The purpose of this study is to assess the interobserver agreement when measuring the standardized uptake value (SUV) parameters and the diameter of pri...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e32834e5397
更新日期:2012-03-01 00:00:00
abstract::We evaluated the use of adenosine, dobutamine and arbutamine with (99m)Tc-tetrofosmin myocardial perfusion imaging. Forty patients under investigation for suspected coronary artery disease were recruited. Each had a resting scan and two separate stress scans on different days, in a randomized cross-over study. Resulta...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00006231-200112000-00005
更新日期:2001-12-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000528
更新日期:2016-09-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:
更新日期:1985-02-01 00:00:00
abstract:OBJECTIVES:In this study, we evaluated and compared the level of myocardial ischaemia caused by cardiac syndrome X (CSX) and coronary slow flow (CSF) with single photon emission computed tomography myocardial perfusion imaging (SPECT-MPI), and determined if changes in the level of myocardial ischaemia exist in CSF and ...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000001080
更新日期:2019-11-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-200506000-00012
更新日期:2005-06-01 00:00:00
abstract::Fever of unknown origin is defined as a temperature above 39.0 degrees C together with a white blood cell count > or = 15,000 mm-3, the duration of fever exceeding 2 weeks and a correct diagnosis not being obtained in the first week of hospitalization. In neonates and infants with fever of unknown origin, the localiza...
journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199811000-00003
更新日期:1998-11-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章,随机对照试验
doi:10.1097/MNM.0000000000000176
更新日期:2014-11-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/00006231-199902000-00013
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pub_type: 杂志文章
doi:10.1097/01.mnm.0000243380.79872.32
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journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/00006231-200405000-00002
更新日期:2004-05-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000918
更新日期:2018-12-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/01.mnm.0000183793.51474.2f
更新日期:2005-11-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000660
更新日期:2017-05-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000208
更新日期:2015-01-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0b013e3282f4a21e
更新日期:2008-04-01 00:00:00
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journal_title:Nuclear medicine communications
pub_type: 杂志文章
doi:10.1097/MNM.0000000000000393
更新日期:2015-12-01 00:00:00
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pub_type: 杂志文章
doi:10.1097/MNM.0b013e3282eff2d5
更新日期:2007-10-01 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
abstract:PURPOSE:Neurokinin 1 (NK1) receptors have been implicated in depression, anxiety, and pain perception. Recently, it was shown that, in the human brain, a specific NK1 receptor-related signal was obtained with the novel radioligand, [¹¹C]R116301, using positron emission tomography. The purpose of this study was to evalu...
journal_title:Nuclear medicine communications
pub_type: 临床试验,杂志文章
doi:10.1097/MNM.0b013e328347e96f
更新日期:2011-10-01 00:00:00