Abstract:
BACKGROUND:To investigate the diagnostic value of shear wave elastography (SWE) in identifying cervical small lymph node metastases in nasopharyngeal carcinoma (NPC) patients. MATERIALS AND METHODS:This prospective study was approved by the local institutional review board. From July 2014 to March 2016, 114 sLNs from 62 newly diagnosed NPC patients (47 men, 15 women) were assessed. Target small lymph nodes (sLNs), which were undiagnosed by magnetic resonance imaging (MRI), were defined as scattered cervical lymph nodes that had no evidence of central necrosis or extracapsular spread and exhibited a maximum transverse diameter ≥5 mm and <10 mm in MRI. The mean (Emean), minimum (Emin) and maximum (Emax) of the elasticity indices (EIs) were measured by SWE at the stiffest part of the sLN (kPa). Biopsy pathology was served as the reference standard. Diagnostic performances were assessed using receiver operating curve (ROC) analysis on a node-by-node basis. RESULTS:Of the 114 small cervical lymph nodes, 88 (77.2%) were benign, and 26 (22.8%) were malignant. All SWE EIs were significantly higher in malignant sLNs than in benign sLNs (p < 0.001). Emean exhibited the highest diagnostic value (area under the curve = 0.879 ± 0.036) (p < 0.001) and the corresponding sensitivity, specificity, positive predictive value, negative predictive value and accuracy of 84.6%, 83.0%, 59.5%, 94.8% and 83.3%, respectively. The intra-observer reproducibility of all SWE EIs were significant, with intra-class correlation coefficient (ICC) of 0.745 in Emean, 0.716 in Emax and 0.702 in Emin. CONCLUSION:Shear wave elastography is an optional supplementary imaging modality to routine MRI examination to diagnose cervical lymph nodes in NPC patients.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Chen BB,Li J,Guan Y,Xiao WW,Zhao C,Lu TX,Han Fdoi
10.1016/j.ejrad.2018.03.006subject
Has Abstractpub_date
2018-06-01 00:00:00pages
19-24eissn
0720-048Xissn
1872-7727pii
S0720-048X(18)30091-3journal_volume
103pub_type
杂志文章abstract::The main of this work is to determine the elemental and absorption distribution map in breast tissue samples by X-ray fluorescence and X-ray transmission microtomography. The experiments were performed at the X-ray fluorescence beamline (D09B-XRF) in the Brazilian Synchrotron Light Source (LNLS), Campinas, Brazil. A q...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.04.047
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abstract:PURPOSE:To investigate radiation exposure in computed tomography (CT)-guided interventions, to establish reference levels for exposure, and to discuss strategies for dose reduction. MATERIALS AND METHODS:We analyzed 1576 consecutive CT-guided procedures in 1284 patients performed over 4.5 years, including drainage pla...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2013.08.035
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journal_title:European journal of radiology
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doi:10.1016/j.ejrad.2010.10.019
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abstract:AIM:To ensure optimal timing with pre-operative spiral CT for abdominal aortic aneurysms (AAA), an initial 'timing' single level CT is commonly performed with a small bolus of contrast. This can be exploited to obtain adjunct functional information on renal perfusion. We have investigated the potential of this to measu...
journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ejrad.2018.12.019
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abstract:PURPOSE:CT is considered the non-invasive gold standard for evaluating cardiac implantable electronic devices (CIEDs) lead perforation, but metal artifacts caused by the lead tip affect the image quality and make a definitive diagnosis challenging. We compared the performances of the metal artifact reduction (MAR) algo...
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pub_type: 杂志文章,meta分析
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journal_title:European journal of radiology
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abstract::The relevance of sonography compared with conventional methods is demonstrated by means of 103 patients investigated with obstruction of the ureter. The knowledge of the exact topographic anatomy of the ureter in all sections enables the experienced investigator to demonstrate cause and position of ureteral obstructio...
journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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doi:10.1016/j.ejrad.2004.05.003
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.01.065
更新日期:2012-02-01 00:00:00
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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abstract:BACKGROUND:Biopsy with demonstration of the infectious organism is the gold standard for diagnosing spondylodiscitis. The purpose of this study is to evaluate the positive culture rate of image-guided percutaneous biopsy in cases of radiologically suspected and unsuspected spinal osteomyelitis and to assess the role of...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.01.125
更新日期:2012-05-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2006.08.012
更新日期:2007-01-01 00:00:00
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journal_title:European journal of radiology
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更新日期:1983-08-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2014.04.011
更新日期:2014-09-01 00:00:00
abstract::Semi quantitative MRI is a very useful procedure for evaluating the bone marrow burden (BMB) in Gaucher disease (GD). Score systems have been applied to obtain a parameter for evaluating the severity of bone disease. Our purpose was to test a simple, reproducible and accurate score to evaluate bone marrow involvement ...
journal_title:European journal of radiology
pub_type: 杂志文章
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pub_type: 杂志文章,随机对照试验
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journal_title:European journal of radiology
pub_type: 杂志文章,评审
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journal_title:European journal of radiology
pub_type: 杂志文章,评审
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更新日期:2008-06-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(95)00606-q
更新日期:1995-05-01 00:00:00
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journal_title:European journal of radiology
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更新日期:2011-10-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2007.02.008
更新日期:2007-10-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章,评审
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更新日期:2018-02-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章,评审
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更新日期:2000-12-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2014-06-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2019-06-01 00:00:00