Abstract：
PURPOSE:To access the influence of anatomic noise on the detectability of subtle lung nodules depicted on chest radiographs. MATERIAL AND METHODS:From normal chest radiography images, 132 square regions were extracted, of which the centers were on the upper margin of a rib, the inside of a rib, the lower margin of a rib, and the central region between two adjoining ribs. Simulated nodules were digitally superimposed at the centers of these extracted square images. Twelve radiologists viewed 50 soft-copy images consisting of these 792 processed images, including the noise-added images. The observer's confidence level for the square images containing single nodules was used as an index of observer performance. RESULTS:Results indicated statistically reliable effects of the relationship between rib structures and nodule positions on the detection performance (P < 0.001). The nodule detectability on the images with a center located between two adjoining ribs was significantly the best, whereas it was significantly the worst on the noise-added images with a center located between two adjoining ribs. CONCLUSION:The rib structures overlying a subtle lung nodule on chest X-ray images have a detrimental effect on nodule detection performance as anatomic noise, regardless of the nodule location on ribs.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Ikeda M,Ishigaki T,Itoh Sdoi
10.1016/j.ejrad.2006.01.011keywords:
subject
Has Abstractpub_date
2006-07-01 00:00:00pages
49-55issue
1eissn
0720-048Xissn
1872-7727pii
S0720-048X(06)00041-6journal_volume
59pub_type
杂志文章abstract：OBJECTIVE:To test the hypothesis that the development of corticosteroid (CS)-associated femoral head osteonecrosis (ON) is influenced by baseline femoral neck marrow status. PATIENTS AND METHODS:The population consisted of 20 untreated patients with a newly diagnosed rheumatic disease in whom a standardized CS regimen...
journal_title：European journal of radiology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ejrad.2006.01.009
更新日期：2006-06-01 00:00:00
abstract：:Dynamic CT in combination with intravenous bolus injection of contrast material provides a study of the pharmacokinetics in great vessels as well as in tissues. If the enhancement in the region of interest is plotted against time, the time-enhancement diagrams obtained reflect the contrast material passage mathematica...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1985-02-01 00:00:00
abstract：PURPOSE:To perform a systematic review and meta-analysis evaluating usefulness of high-risk CT features (HRFs) on follow-up CT in detecting local recurrence after stereotactic body radiation therapy (SBRT) in lung cancer patients. METHODS:Pubmed and EMBASE were searched up to January 11th, 2019. We included studies th...
journal_title：European journal of radiology
pub_type： 杂志文章,meta分析
doi：10.1016/j.ejrad.2020.108978
更新日期：2020-06-01 00:00:00
abstract：OBJECTIVES:To assess the most optimal multi-parametric magnetic resonance imaging sequence (Mp-MRI) in determining pathological length of capsular contact (LCC) for the diagnosis of prostate cancer extraprostatic extension (EPE). METHODS:105 patients with prostate cancer who underwent Mp-MRI of prostate prior to radic...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2019.01.020
更新日期：2019-03-01 00:00:00
abstract：PURPOSE:To compare projected breast area, image quality, pain experience and radiation dose between mammography performed with and without radiolucent positioning sheets. METHODS:184 women screened in the Dutch breast screening programme (May-June 2012) provided written informed consent to have one additional image ta...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2015.07.005
更新日期：2015-10-01 00:00:00
abstract：PURPOSE:To obtain diffusion and microperfusion measures in lymph node metastases of head and neck squamous cell carcinomas (HNSCC) using intravoxel incoherent motion (IVIM) imaging. The obtained IVIM parameters were used to characterize lymph nodes in the staging phase and longitudinal follow-up was performed to evalua...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2014.02.013
更新日期：2014-05-01 00:00:00
abstract：BACKGROUND:Management of congenital pulmonary vein stenosis is a diagnostic challenge. Echocardiography may be insufficient and thus cardiac catheterization remains the reference standard in this setting. The aim of the study was to investigate the accuracy of cardiac-non-gated CT using 64-slice technology in detecting...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2008.02.006
更新日期：2009-06-01 00:00:00
abstract：:An anatomico-radiological study of a painful intraosseous lipoma of the fibula is reported. A blown up cortex and a rearrangement of surrounding cancellous bone trabeculae were observed. The lipoma contained two small bone infarcts. A radiological differential diagnosis with calcified chondroma as well as the pathogen...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1985-08-01 00:00:00
abstract：INTRODUCTION:Radiotherapy is increasingly used for both curative and palliative treatment of oesophageal malignancy. Accurate treatment depends on determining tumour location and length. This study assessed the value of PET-CT versus other staging modalities in determining tumour length. MATERIALS AND METHODS:Oesophag...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2014.10.014
更新日期：2015-02-01 00:00:00
abstract：:After creating a MR pulse sequence, called MR-myelography, the purpose of the study was to evaluate the value of this sequence in comparison to conventional myelography. Twenty consecutive patients were examined with conventional and MR-myelography concerning the clinical questions of chronic lumbago, spinal canal ste...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/0720-048X(95)00730-E
更新日期：1996-02-01 00:00:00
abstract：PURPOSE:To assess the dose-normalized iodine contrast-to-noise-ratio (CNRD) improvement and contrast media reduction potential obtained with photon-counting (PC) CT compared to conventional energy-integrating (EI) CT as a function of patient size and tube voltage. METHOD:Images of a semi-anthropomorphic phantom of dif...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2020.108909
更新日期：2020-05-01 00:00:00
abstract：PURPOSE:To ascertain the role of respiratory-gated PET/CT with (18)F-fluorodeoxyglucose ((18)F-FDG) for accurate diagnosis of liver metastasis. MATERIALS AND METHODS:Forty patients with suspected liver metastasis underwent conventional whole-body PET/CT scan initially, followed by respiratory-gated PET/CT scan coverin...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2013.05.019
更新日期：2013-10-01 00:00:00
abstract：OBJECTIVES:To evaluate the feasibility and incremental diagnostic value of xenon-enhanced dual-energy CT in mechanically ventilated intensive care patients with worsening respiratory function. METHODS:The study was performed in 13 mechanically ventilated patients with severe pulmonary conditions (acute respiratory dis...
journal_title：European journal of radiology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ejrad.2012.10.029
更新日期：2013-03-01 00:00:00
abstract：:The author argues that, whatever important and rapid developments may be taking place in imaging technologies, there will be a continuing need for X-ray enhancing agents for a considerable time to come. Areas in which there are current developments, such as non-ionic dimers and compact dimers, are surveyed and a look ...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/s0720-048x(96)01086-8
更新日期：1996-11-01 00:00:00
abstract：OBJECTIVES:Anemia is associated with increased mortality in patients with acute symptomatic pulmonary embolism (PE). The purpose of this study was to evaluate the feasibility of Hounsfield unit (HU) measurements on the single unenhanced trigger slice of pulmonary CT angiography scans for diagnosis of anemia. MATERIAL ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2012.07.008
更新日期：2012-12-01 00:00:00
abstract：:Historically varicocele is diagnosed almost exclusively on the left side. The introduction of new imaging techniques has allowed the identification and characterization of right varicocele. This study aims to compare the diagnostic accuracy of various imaging techniques to data obtained using phlebography in the diagn...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2011.05.015
更新日期：2012-09-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to examine the relationship between the CT features of the primary-site gastric cancer and the concurrent existence or postoperative recurrence of hepatic metastasis. MATERIALS AND METHODS:From January 2013 to July 2016, 125 patients with advanced gastric cancer who were evaluat...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2018.09.030
更新日期：2018-11-01 00:00:00
abstract：:Computed tomography (CT) and magnetic resonance imaging (MRI) are well established imaging modalities to examine the facial nerve as well as the course of the facial nerve itself. High spatial resolution is guaranteed not only in the x- and y-axis, but also in the z-axis using multislice spiral CT. With this technique...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/s0720-048x(01)00381-3
更新日期：2001-11-01 00:00:00
abstract：:Ultrasonography (US) is an established and well-accepted modality that can be used to evaluate articular and peri-articular structures around the shoulder. US has been proven to be useful in a wide range of rotator cuff diseases (tendon tears, tendinosis, and bursitis) as well as non-rotator cuff abnormalities (instab...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2014.11.007
更新日期：2015-02-01 00:00:00
abstract：:Pathology and demography have combined to fuel exponential demand for advanced medical imaging. To support this demand, radiology must move beyond traditional department or modality-based picture archiving and communication systems (PACS) to solutions that ensure access regardless of location. This article delineates ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2009.10.019
更新日期：2010-01-01 00:00:00
abstract：OBJECTIVES:Lymphangiography and thoracic duct embolization are established treatments for post-surgical chylothorax. There is only limited experience in their application to treat post-surgical chylous ascites. A multi-center analysis of the technical and clinical success of lymphangiography and lymphatic interventions...
journal_title：European journal of radiology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ejrad.2018.10.019
更新日期：2018-12-01 00:00:00
abstract：:Lung cancer has increased in incidence throughout the twentieth century and is now the most common cancer in the Western World. It has a poor prognosis, only 10-15% of patients survive 5 years or longer. Outcome is dependent on clinical stage and cancer cell type. Lung cancer is broadly subclassified on the basis of h...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/s0720-048x(02)00287-5
更新日期：2003-01-01 00:00:00
abstract：:Posttreatment imaging is done when a recurrent tumour is suspected, to confirm the presence of such a lesion and to determine its extent. The extent of a recurrent cancer is important information for determining the possibility of salvage therapy. Imaging may also be used to monitor tumour response and to try to detec...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2008.01.021
更新日期：2008-06-01 00:00:00
abstract：PURPOSE:Brain metastasis (BM) is the primary first failure pattern in patients with curatively resected locally advanced non-small cell lung cancer (LA-NSCLC). It is not yet possible to accurately predict the occurrence of BM. The purpose of the research is to develop and validate a prediction model of BM-free survival...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2020.109411
更新日期：2021-01-01 00:00:00
abstract：:PACS has been widely adopted as an image storage solution that perfectly fits the radiology department workflow and that can be easily extended to other hospital departments. Integrations with other hospital systems, like the Radiology Information System, the Hospital Information System and the Electronic Patient Reco...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2010.05.026
更新日期：2011-05-01 00:00:00
abstract：PURPOSE:To correlate dynamic MRI assays of macromolecular endothelial permeability with microscopic area-density measurements of vascular endothelial growth factor (VEGF) in tumors. METHODS AND MATERIAL:This study compared tumor xenografts from two different human cancer cell lines, MDA-MB-231 tumors (n=5), and MDA-MB...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2011.07.016
更新日期：2012-05-01 00:00:00
abstract：BACKGROUND:Dynamic contrast enhanced (DCE) MRI parameters are potential biomarkers to characterise tumour vasculature and distinguish it from the non-cancerous blood vessel system within the prostate. However, the inevitable presence of intra- and inter-observer variabilities is challenging in this context. Additionall...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2019.04.015
更新日期：2019-07-01 00:00:00
abstract：:This paper discusses ten patients who developed acute cholecystitis during the postoperative period following surgery which did not involve the gall bladder. All were examined with ultrasound during the first two weeks after surgery and were diagnosed as acute cholecystitis. Six (60%) had complications such as empyema...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1985-02-01 00:00:00
abstract：:Disorders of the major airways in children are often difficult to treat. Recent advances in interventional radiology are proving useful, for both assessment of the severity of the problem and treatment. Flexible bronchoscopy and bronchography are essential tools for diagnosis, intervention and follow-up. Echocardiogra...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2004.07.022
更新日期：2005-01-01 00:00:00
abstract：:Two principally different 1000-line CRT (cathode ray tube) monitors connected to a digital image intensifier system for chest radiography were compared in terms of image quality and viewing comfort. Image quality was assessed by means of ROC analysis. Five observers tried to find simulated pathology positioned over th...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/0720-048x(96)00750-4
更新日期：1996-06-01 00:00:00
